Invalidity dossier
US 6757602
System for determining the occupancy state of a seat in a vehicle and controlling a component based thereon
Current assignee: Automotive Technologies International, Inc.
Added 9/22/2026, 1:42:32 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
I'll check live sources for the patent and any CAFC/appellate docket activity before summarizing.
Let me pull the actual claim set for US 6,757,602 and check docket status.
Let me retrieve the abstract and confirm the full independent-claim set (including any child-seat-orientation claim).
Note on search coverage
I ran live web lookups against Google Patents, Justia Dockets/patents, CourtListener, and commercial patent databases. Here is what I could and could not confirm for US 6,757,602 specifically (no look‑alikes substituted).
Bibliographic data (from the Google Patents record for US6757602B2)
| Field | Value |
|---|---|
| Patent number | US 6,757,602 B2 |
| Title | System for determining the occupancy state of a seat in a vehicle and controlling a component based thereon |
| Application number | US 10/234,436 |
| Filing date | 2002‑09‑03 |
| Issue date | 2004‑06‑29 |
| Pre‑grant publication | US 2003/0036835 A1, published 2003‑02‑20 |
| Inventors | David S. Breed; Wilbur E. DuVall; Wendell C. Johnson; Jeffrey L. Morin; Kunhong Xu; Michael E. Kussul; Tie‑Qi Chen |
| Assignee (original and current) | Automotive Technologies International, Inc. |
| Priority date (as listed) | 1997‑02‑06 |
| Status | Expired – Fee Related; adjusted expiration 2017‑03‑07 |
Related/family priority documents listed: US 08/919,823 (filed 1997‑08‑28, issued as US 5,943,295), US 09/382,406 (issued as US 6,529,809), US 09/474,147 (issued as US 6,397,136), US 09/853,118 (issued as US 6,445,988). The application is a continuation‑in‑part of these.
Classifications include: B60R21/01512, B60R21/01516, B60R21/01532, B60R21/01534, B60R21/01536, B60R21/0154, B60R21/01544, B60R21/01546, B60R21/01554; G01S15/04, G01S15/06, G01S15/42, G01S15/88; G06V40/10.
Stated uncertainties in the bibliographic record
- Priority date inconsistency: Google lists a "prior art date / priority date" of 1997‑02‑06, but the earliest external priority document it lists is US 08/919,823 filed 1997‑08‑28. I cannot explain the 1997‑02‑06 date from the sources I retrieved (it may reflect an earlier application or provisional not surfaced in the family listing). Treat the priority date as unverified.
- Assignee data is presented by Google Patents with its own disclaimer that it has not been legally verified.
Abstract
I was not able to retrieve the verbatim abstract text for US 6,757,602 in this session — the Google Patents rendering I pulled was truncated before the Abstract section. Rather than reconstruct it and risk fabrication, here is the gist, drawn from the specification text that is available:
The patent concerns determining the "occupancy state" of a vehicle seat — i.e., the type, size, position, orientation and/or identity of whatever occupies the seat — using one or more transducers (ultrasonic, electromagnetic, capacitive/field, weight, seat‑position and other sensors), and using the result to control a vehicular component, particularly an occupant protection device such as an airbag. The determination is performed with trainable pattern‑recognition algorithms and, in particular, combination neural networks (modular, voting/ensemble, cellular). Deployment is disabled or adjusted when the seat is empty or holds a rear‑facing child seat, or when the occupant is out‑of‑position.
If the verbatim abstract is needed for a filing or opinion, it should be pulled directly from the USPTO PatentCenter/PatFT record for US 6,757,602 (or the granted front page PDF), which I did not access directly.
Independent claims — plain‑language overview
Based on the claim text returned from the patent databases, the patent has five independent claims (1, 12, 18, 32 and 46). Claim numbering appears to run through claim 48 (claim 48 depends from claim 47), so the patent likely contains 48 claims total — I flag this as inferred rather than directly confirmed.
Claim 1 — Occupant–protection control with size‑selected position algorithm.
Method for controlling an occupant protection device: (a) acquire sensor data about the occupant of the seat to be protected; (b) classify the type of occupant; (c) if the seat is classified as empty or as a rear‑facing child seat, disable or adjust deployment; (d) otherwise, classify the size of the occupant; (e) determine the occupant's position using one of several algorithms chosen according to the classified size, each algorithm being valid for a particular size; and (f) disable or adjust deployment if the determined position makes injury from deployment more likely. (The "plurality of algorithms selected by size" is the core distinguishing idea.)
Claim 12 — Iterative occupancy‑state determination with feedback of the prior state.
Method for controlling a vehicle component: acquire sensor data about an occupant of a seat interacting with/using the component; determine the seat's occupancy state; periodically acquire new data; on each new acquisition, determine the occupancy state using both the new data and the occupancy state determined at a preceding time; control the component accordingly. This is the temporal‑feedback (tracking) claim.
Claim 18 — Iterative identification + position, with feedback of the prior identification.
Method for controlling a vehicle component: acquire data; identify the occupant; determine occupant position; control the component based on the identification and/or position; periodically acquire new data; and on each new acquisition, identify the occupant using the new data and the identification from a preceding time, determine position from the new data, and control the component. (Position carries forward only indirectly; the identification is the fed‑back quantity.)
Claim 32 — Iterative identification + position, with feedback of the prior position.
Similar to claim 18, but here on each new acquisition the occupant is identified from the new data while the position is determined from the new data and the position determination from a preceding time. This is the position‑tracking variant.
Claim 46 — Child‑seat orientation branch.
Method for controlling a vehicle component: acquire sensor data; identify the occupant; if the occupant is identified as a child seat, determine the child seat's orientation, determine its position using one of several algorithms selected according to that orientation (each algorithm valid for a particular orientation), and control the component based on the determined position; if the occupant is identified as something other than a child seat, determine the occupant's size and/or position and control the component on that basis. This is the rear‑facing vs. forward‑facing discrimination claim.
Representative dependent claims worth noting: claims 2–3 (algorithms are pattern‑recognition algorithms / neural networks); claim 7 (classification by a combination neural network trained on data sets representing different occupancy states); claim 8 (feeding a previous position determination into the current position algorithm); claim 11 (a gating step — reject acquired data not compatible with the training/classification data and re‑acquire); claims 20–21 and 34–35 (identification uses a first subset of sensors while position uses a different second subset); claims 26 and 40/43 (position determined by one of several algorithms selected by occupant identification); claims 24–25, 36–39 (pattern recognition / combination neural network implementations).
Litigation and CAFC docket check
No 2026 Federal Circuit docket activity for US 6,757,602 was found. The patent's own record shows a 2017‑03‑07 adjusted expiration (expired – fee related), which is consistent with there being no live appellate activity today.
District‑court cases listed on the patent's Google Patents page (from Unified Patents litigation data) are:
- D. Del. 1:06‑cv‑00391
- D. Del. 1:06‑cv‑00187
- E.D. Tex. 2:08‑cv‑00057 (flagged "Critical" in the record)
- E.D. Mich. 2:10‑cv‑10647
CAFC dockets I located in the same corporate family (Automotive Technologies International) — 06‑1013 (ATI v. BMW of North America), 11‑1061 (ATI v. Siemens VDO), and 2011‑1292 (ATI v. Delphi Corp., consolidated from E.D. Mich. 08‑cv‑11048 and 10‑cv‑10647) — I could not confirm as involving US 6,757,602. The published Federal Circuit decisions I retrieved for ATI (e.g., ATI v. BMW of North America, 501 F.3d 1274 (Fed. Cir. 2007)) turn on U.S. Patent 5,231,253 ("Side Impact Sensors") and its § 112 enablement, not on the '602 patent.
Uncertainty to flag: Because E.D. Mich. 2:10‑cv‑10647 appears in both the '602 patent's district‑court list and the consolidated appeal in ATI v. Delphi (2011‑1292), it is possible the '602 patent was among the patents asserted in that litigation, but I have not verified which patents were asserted in that case. A PACER docket pull (or the Appellate Case Management/ECF docket for 2011‑1292) would be required to confirm. I also found no evidence of any CAFC 2026 docket, IPR, or other post‑grant proceeding involving 6,757,602.
Bottom line
US 6,757,602 is an Automotive Technologies International (Breed et al.) patent, filed 2002‑09‑03 as a continuation‑in‑part of the 1997–2001 ATI occupant‑sensing family, issued 2004‑06‑29, now expired. Its claims are directed to (i) size‑selected algorithms for occupant‑position determination feeding airbag enable/disable/depower logic, (ii) iterative, feedback‑based (temporal‑tracking) occupancy‑state determination, (iii) iterative identification/position determination with cross‑time feedback, and (iv) a child‑seat‑orientation branch in which position algorithms are selected by the determined orientation. No live 2026 Federal Circuit activity is associated with this patent, and the appellate history I could find in the ATI portfolio concerns other patents. The two items I could not fully verify are the verbatim abstract and whether this specific patent was asserted in the E.D. Mich. 10‑cv‑10647 / CAFC 2011‑1292 litigation.
Generated 9/22/2026, 1:43:04 PM
Cases on file (3)
Group view →Specific litigation cases in our database that name US patent 6757602. The free-form analysis below may also discuss cases beyond this list.
- 1:06-cv-00391-GMSU.S. District Court for the District of Delawareterminated May 18, 2017dismissed with prejudice
Defendants: Hyundai Motor America, BMW of North America LLC, Kia Motors America, Inc.
Other patents asserted: 5901978, 6325414, 6422595, 6484080, 6712387, 6833516, 6850824, 6869100, 6942248, 6958451
- Automotive Technologies International, Inc. v. American Honda Motor Co., Inc. et al.filed Mar 17, 20061:06-cv-00187-GMSU.S. District Court for the District of Delawareclosed
Defendants: American Honda Motor Co., Inc., Elesys North America Inc., General Motors Corp.
Other patents asserted: 5901978, 6242701, 6325414, 6397136, 6422595, 6869100, 6712387, 6942248, 6950022, 6958451, 6484080, 6850824
- 2:08-cv-00057U.S. District Court for the Eastern District of Texas
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
I'll search live sources for litigation specifically involving US 6,757,602.
Strong leads found. Let me verify the specific cases and outcomes.
I hit my tool-call limit mid-verification, so here is what I could confirm — and, importantly, what I could not. I searched patent-litigation aggregators (Unified Patents litigation portal, Justia/RPX litigation documents, CourtListener, Dockets.Justia, Stanford NPE database) and court-document repositories, keyed strictly on 6,757,602 / 6,757,602 B2. I did not substitute look‑alike numbers.
Cases where US 6,757,602 is affirmatively identified as an asserted patent
1. Automotive Technologies International, Inc. v. American Honda Motor Co., Elesys North America, Inc., General Motors Corp.
| Field | Value |
|---|---|
| Plaintiff | Automotive Technologies International, Inc. (ATI) |
| Defendants | American Honda Motor Co., Inc.; Elesys North America Inc.; General Motors Corp. |
| Jurisdiction / court | U.S. District Court for the District of Delaware |
| Case number | 1:06‑cv‑00187‑GMS (Judge Gregory M. Sleet) |
| Filing date | March 17, 2006 (First Amended Complaint May 3, 2006) |
| Status/outcome | Motion to transfer to E.D. Mich. DENIED (Dec. 21, 2006). Final disposition not verified in my searches. |
Why this is a confirmed '602 case: the court's December 21, 2006 Memorandum expressly recites the patents-in-suit as U.S. Patent Nos. 5,901,978; 6,242,701; 6,325,414; 6,397,136; 6,422,595; 6,869,100; 6,757,602; 6,712,387; 6,942,248; 6,950,022; and 6,958,451. The amended complaint added 6,484,080 and 6,850,824 and withdrew 6,950,022.
2. Automotive Technologies International, Inc. v. Hyundai Motor America, BMW of North America LLC, Kia Motors America, Inc.
| Field | Value |
|---|---|
| Plaintiff | Automotive Technologies International, Inc. |
| Defendants | Hyundai Motor America; BMW of North America LLC; Kia Motors America, Inc. |
| Jurisdiction / court | U.S. District Court for the District of Delaware |
| Case number | 1:06‑cv‑00391‑GMS (Judge Sleet) |
| Filing date | June 16, 2006 |
| Status/outcome | Partially concluded. Motion to transfer to E.D. Mich. denied (Dec. 21, 2006). ATI's claims against BMW and BMW's counterclaims dismissed with prejudice, stipulated order entered Nov. 14, 2013. ATI's claims against Hyundai and Kia dismissed with prejudice (stipulation; order signed May 18, 2017), with the docket terminated. |
Why this is a confirmed '602 case: the court's AO‑120 "Report on the Filing… of an Action Regarding a Patent" (D.I. 4, filed June 19, 2006) lists US 6,757,602 B2 (date of patent 6/29/04, holder ATI) among the patents included in the action alongside 5,901,978; 6,325,414 B2; 6,422,595 B1; 6,484,080 B2; 6,712,387 B1; 6,833,516 B2; 6,850,824 B2; 6,869,100 B2; 6,942,248 B2; and 6,958,451 B2. The December 21, 2006 Memorandum (in the related 06‑187 action) confirms that "Ten of the 12 asserted patents" in the Honda/Elesys/GM action were also asserted in this Hyundai/BMWNA/Kia action.
Cases listed on the patent's own record that I could NOT verify
The Google Patents record for US 6,757,602 (drawing on Unified Patents litigation data) lists two further matters, but my searches did not surface documents tying 6,757,602 to them:
- E.D. Tex. 2:08‑cv‑00057 — flagged "Critical" in the record. Parties, filing date, and outcome not confirmed in this session. I will not guess at the plaintiff/defendant set.
- E.D. Mich. 2:10‑cv‑10647 — parties and outcome not confirmed. ⚠️ Contradiction/ambiguity to flag: I did confirm a different E.D. Mich. ATI case, 2:06‑cv‑15756 (ATI v. Siemens VDO Automotive Corp., et al., filed Dec. 27, 2006), which was resolved against ATI (judgment of non‑infringement / invalidity for the patents actually asserted — 6,850,824; 7,025,379; 7,052,038; 7,070,202; 7,097,201). Those are side‑impact patents and are not 6,757,602. Do not conflate 2:06‑cv‑15756 with any '602 assertion.
Related appellate / family activity — NOT about 6,757,602
For completeness (and to prevent conflation):
- Fed. Cir. 2006‑1013 / ‑1037, ATI v. BMW of North America, 501 F.3d 1274 (Fed. Cir. Sept. 6, 2007) — affirmed invalidity of U.S. 5,231,253 ("Side Impact Sensors") for lack of enablement. The '602 patent was not at issue.
- Fed. Cir. 2011‑1292, ATI v. Delphi Corp. — I previously flagged this as possibly tied to E.D. Mich. 10‑cv‑10647. I still cannot confirm that 6,757,602 was among the patents asserted in that litigation or appeal.
Third‑party litigation-use indicator
A Korean IP‑Navi (KIPO‑affiliated) compilation of ATI's portfolio lists US 6,757,602 with a litigation-use count of "3회" (3 times) — i.e., an assertion that the patent had been used in litigation on three occasions. I could directly corroborate two of those (the Delaware actions above); the third may correspond to one of the unverified Texas/Michigan matters.
Bottom line
- Confirmed litigation asserting US 6,757,602: two consolidated‑style D. Del. actions — 1:06‑cv‑00187‑GMS (ATI v. Honda/Elesys/GM) and 1:06‑cv‑00391‑GMS (ATI v. Hyundai/BMWNA/Kia) — both filed in 2006, both now closed (dismissals with prejudice in 2013 and 2017).
- Not verified: E.D. Tex. 2:08‑cv‑00057 and E.D. Mich. 2:10‑cv‑10647 (listed on the patent record but not corroborated with party/outcome data here).
- No 2026 litigation involving 6,757,602 was found; the patent is expired – fee related (adjusted expiration 2017‑03‑07).
- Caveat on identifiers: I have kept every patent number literal (6,757,602 ≠ 6,850,824 ≠ 6,397,136, etc.). The ATI portfolio contains many closely related occupant‑sensing and side‑impact patents asserted in overlapping litigations, which is the main risk of misattribution here.
If you need certainty on the two unverified dockets, the authoritative next steps are a PACER docket pull for E.D. Tex. 2:08‑cv‑00057 and E.D. Mich. 2:10‑cv‑10647 (to read the complaints/patent‑in‑suit exhibits), and the Federal Circuit CM/ECF docket for 2011‑1292 to see whether 6,757,602 was within the appealed judgment. I was not able to reach those records before hitting my search limit.
Generated 9/22/2026, 6:45:30 PM
Proceedings on file (0)
All PTAB activity →AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.
Current assignee: Automotive Technologies International, Inc.
No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.
PTAB challenges
AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.
I'll verify the structured "no proceedings" default against live sources before writing the final analysis.
Let me run a few more targeted checks — including the patent owner's portfolio and any ATI-related AIA trials.
Let me do a final confirmation pass on any AIA proceeding or PTAB challenge tied to this patent number or its owner.
Proceedings overview
Total AIA trial proceedings on US 6,757,602: zero. The USPTO Open Data Portal structured block ("PTAB proceedings on file") returns no AIA trials, and my independent verification pass across PTAB E2E/public decisions, CourtListener, Google Patents' litigation section, and general web search produced no IPR, PGR, or CBM for this patent. Breakdown by status: active 0, claims invalidated 0, claims sustained 0, settled 0, institution denied 0. The defensive posture this gives a defendant is not "the patent is hardened by surviving IPRs" and not "claims are canceled" — it is that the patent has never been tested at the PTAB and, per the record, is expired (adjusted expiration 2017-03-07; "Expired – Fee Related"), so your primary defenses are expiration/§ 286 damages bar and invalidity under § 282 in district court, not an AIA-estoppel argument.
Per-proceeding detail
None. There are no proceeding numbers to report, and I will not invent any. The record contains no docket number, no petitioner, no panel, no institution decision, and no Final Written Decision for this patent.
Why the absence is structural, not merely accidental (verified reasoning)
This is worth stating because it survives any future re-check:
- Timing. The '602 patent's litigation life was concentrated in 2006–2010 — D. Del. 1:06-cv-00187 and 1:06-cv-00391, E.D. Tex. 2:08-cv-00057, E.D. Mich. 2:10-cv-10647 (per the patent's own Google Patents/Unified Patents litigation listing). IPR only became available on 2012-09-16. The assertion wave had already largely passed before any petitioner could file an IPR, and by the time IPRs were available the patent was inside its final five years.
- PGR is unavailable. The patent is pre-AIA (filed 2002-09-03, priority 1997), so it is not subject to the first-inventor-to-file provisions that gate post-grant review under 35 U.S.C. §§ 321–329.
- CBM is unavailable. Even if a vehicle occupant-sensing patent could be shoehorned into the "covered business method" definition (it should not be — this is not a financial-services data-processing patent), the CBM transitional program sunset on 2020-09-16 under AIA § 18(f). It is gone.
- Practical disincentive. The patent lapsed at end of term (record shows expiration 2017-03-07). Petitioners generally do not fund IPRs against a patent with no forward damages exposure.
Search caveats I will not paper over: my sources were the ODP block provided, PTAB public-facing decisions search, CourtListener, and general web search. I did not run a live PACER/CM-ECF pull, and I could not query PTAB E2E's party/patent index directly. A one-minute confirmation via PTAB E2E (search by patent number 6,757,602) or the USPTO PatentCenter "Post-Grant" tab would close that residual gap. Nothing I found suggests a hidden proceeding; older reexaminations (ex parte) would not appear as AIA trials in any event, and I found no evidence of one.
Contradiction to flag with the previously generated section. The earlier summary inferred that the patent has 48 claims (independently numbered 1, 12, 18, 32, 46). Live search surfaced a document list — Defendant's Invalidity Contentions of claims 1, 2, 4, 8-10, 12, 13, 16, 18-20, 22-24, 26, 27, 29, 30, 32-34, 36-38, 40, 41, 43, 44, 46, 47, 49, 51, 52, 54 and 55 of US 6757602, from Automotive Technologies International, Inc. v. American Honda Motor Co., Inc., et al., C.A. No. 06-187-GMS (D. Del., contentions dated 2006-10-09), cited in the Non-Patent Citations of US 7,676,062. That reference to claim 55 conflicts with the "48 claims" inference. The correct claim count is unverified and is at least 55. Do not rely on the "48 claims" figure without pulling the granted front page.
Strategic summary
Canceled vs. sustained vs. untested. Every claim of US 6,757,602 — whether the count is 48 or 55 — is UNTESTED at the PTAB. No claim has been canceled by the Board, no claim has been confirmed, and no substitute claim has been added. There is therefore no IPR certificate narrowing the claim set. Anyone citing "claims 1–5" or any other claim of this patent is citing claims that were never adjudicated at the PTAB. Separately, the E.D. Mich. and D. Del. invalidity contentions referenced above show the District Court judges in 2006–2008 were asked to invalidate claims 1, 2, 4, 8–10, 12, 13, 16, 18–20, 22–24, 26, 27, 29, 30, 32–34, 36–38, 40, 41, 43, 44, 46, 47, 49, 51, 52, 54 and 55 — i.e., the 2006-era assertion targeted roughly thirty claims including the independent claims 1, 12, 18, 32 and 46 identified earlier. I have not verified the outcome of those district-court invalidity challenges; do not assume cancellation.
Estoppel landscape. There is no § 315(e)(2) or § 325(e)(2) estoppel against anyone, because no IPR/PGR was instituted and no Final Written Decision issued. Consequence for a defendant today: all printed-publication § 102 and § 103 grounds remain fully available in district court under § 282, with no privity-based estoppel and no "reasonably could have raised" bar. The corollary caution: because there is no FWD, you also cannot point the court to a Board determination that any claim is unpatentable — your invalidity case must be built from scratch, which is exactly the situation the 2006 Honda/Delphi defendants faced.
Pattern signals. No petitioner appears anywhere on this patent; no repeat-filer pattern exists. There is no Patent Owner-side PTAB appeal (nothing to appeal). There is no defensive aggregator in the chain on this patent — Unified Patents appears in the record only as the source of the litigation dataset on Google Patents, not as a petitioner, and I found no Unified Patents IPR on 6,757,602. The ATI/American Vehicular Sciences portfolio was litigated almost entirely in district court pre-AIA; the Federal Circuit activity in that corporate family that I could locate concerns other patents (e.g., the '253 side-impact patent in ATI v. BMW of North America, 501 F.3d 1274 (Fed. Cir. 2007)), consistent with the earlier section's finding that no 2026 appellate activity touches the '602 patent.
Recommended next steps
- If you are a defendant and the patent has claims invalidated — it does not. Be explicit internally: there is no FWD to link to, no cancellation certificate, and no claim held unpatentable by the Board. Any drafting suggestion that claims of 6,757,602 were killed in an IPR is unsupported. The supportable statement is: no AIA trial was ever instituted against US 6,757,602; the USPTO Open Data Portal lists no proceedings; and the patent's record shows expiration 2017-03-07.
- Lead with expiration and § 286. With the patent expired 2017-03-07, a complaint filed today (2026-09-22) can reach back only to 2020-09-22 under the six-year damages bar of 35 U.S.C. § 286 — a window in which the patent was already expired and no infringement was possible. Practically, recoverable past damages are zero. Verify the expiration basis on the face of the PatentCenter maintenance-fee record before relying on this (the Google Patents entry labels it "Expired – Fee Related," which typically denotes lapse for non-payment rather than pure end-of-term; either way the patent is not in force). Note SCA Hygiene Products v. First Quality Baby Products, 580 U.S. 328 (2017), abolishes laches as an IPR-era defense, so § 286 — not laches — is the argument.
- If active proceedings were anticipated — there are none to monitor. No institution deadline, no oral hearing, no one-year § 318(a) FWD date, and no PTAB appeal exists for this patent.
- If you are weighing your own IPR: it is legally possible to petition against an expired patent, but the value is confined to defeating a live past-damages claim, and § 315(b) bars a petition filed more than one year after service of a complaint alleging infringement. Given the expiration math above, an IPR is almost certainly an unnecessary expense. Confirm the claim set and the true expiration date first (PatentCenter).
- Close the verification gap before filing anything. Pull the patent's PTAB E2E record (search 6,757,602) and PatentCenter post-grant/reexamination tabs; check CourtListener for the D. Del. 06-187 and E.D. Mich. 10-cv-10647 dockets to see which claims were actually adjudicated and whether any of those findings (e.g., a district-court invalidity judgment later affirmed) supply a stronger, already-established defense than an untested IPR theory would.
Bottom line for a defendant: there is no AIA-trial history on US 6,757,602 — no IPR, no PGR, no CBM, no FWD, no estoppel, and no PTAB appeal. That absence is not evidence the patent is "hardened"; it reflects a pre-AIA assertion wave that predated IPR availability, a PGR/CBM-unavailable patent, and a lapse in 2017. Your defense today should be built on expiration and § 286, not on PTAB cancellation, because no PTAB cancellation of this patent has ever occurred.
Generated 9/22/2026, 6:45:44 PM
Ownership chain (1)
Asserters network →Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.
2002-10-28 · Assignment
Chen, Tie-Qi; Morin, Jeffrey L.; Xu, Kunhong; Kussul, Michael E.; Johnson, Wendell C.; DuVall, Wilbur E.; Breed, David S.Automotive Technologies International, Inc.
original assignment
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
I'll attempt live lookups against the USPTO Assignment Center and related sources before writing the record.
Let me try to reach the USPTO assignment records directly and through secondary sources.
I ran live lookups against the USPTO Assignment Center endpoints, Google Patents legal events, Justia, PatentLeaderboard, and docket/PTAB sources. Here is the ownership reconstruction. Read the note on reel/frame first — it materially limits parts of this report.
⚠️ Source limitation (state up front). I was not able to open the USPTO Assignment Center record page for US 6,757,602 in this session. The searches returned the patent's legal-events feed (via the Google Patents record) but no assignment abstract with reel/frame numbers, execution date, or correspondent of record. Accordingly: every reel/frame field below is blank rather than guessed. I will not invent a reel/frame to fill the template. If you need them, the two authoritative lookups are
https://assignmentcenter.uspto.gov/andhttps://assignment.uspto.gov/patent/index.html, searching patent number6757602— both index the same underlying assignment abstracts and will return the reel/frame and the recording correspondent directly.
Inventors
| # | Inventor | Employer at filing (determinable) |
|---|---|---|
| 1 | David S. Breed | Automotive Technologies International, Inc. (ATI) — founder/principal; Denville, NJ |
| 2 | Wilbur E. DuVall | ATI (inference from family-wide assignment pattern; not independently verified) |
| 3 | Wendell C. Johnson | ATI (same basis) |
| 4 | Jeffrey L. Morin | ATI (same basis) |
| 5 | Kunhong Xu | ATI (same basis) |
| 6 | Michael E. Kussul | Unclear — Kussul is a neural-network researcher whose academic affiliation was in Mexico (UNAM); likely an outside collaborator rather than an ATI payroll employee. Flagging as inference, not established fact. |
| 7 | Tie-Qi Chen | ATI (same basis) |
Pattern notes.
- No departures-departures signal. The rubric asks whether all inventors left the assignee within 12 months of filing (a classic precursor to a portfolio fire-sale). The opposite pattern appears here: all seven inventors executed an assignment to ATI on 2002‑10‑28, roughly eight weeks after the 2002‑09‑03 filing. That is standard in-house practice, not a fire-sale tell.
- Seven named inventors on one application is high, and reflects ATI's practice of naming every contributor across a deeply interlocking continuation-in-part family (the '602 is a CIP of US 08/919,823, 09/382,406, 09/474,147 and 09/853,118).
- Legal-event cross-check: the Google Patents reassignment entry lists the assignors as
CHEN, TIE-QI; MORIN, JEFFREY L.; XU, KUNHONG; KUSSUL, MICHAEL E.; JOHNSON, WENDELL C.; DUVALL, WILBUR E.; BREED, DAVID S.— i.e., all seven, matching the named-inventor list exactly. No inventor held back a retained interest on the recorded face of the document.
Original assignee
Automotive Technologies International, Inc. (ATI) — named as both Original Assignee and Current Assignee on the Google Patents record. The fact that original and current assignee are identical is itself the central finding of this report: the patent does not appear to have ever left ATI.
- Primary line of business: automotive occupant-safety R&D — occupant position sensing, crash sensing and airbag control technology. ATI was founded by inventor David S. Breed and is headquartered in Denville, New Jersey.
- Did it ship a product embodying the claims? Not established. ATI is best characterized as a technology development and licensing house rather than a volume manufacturer; my searches surfaced ATI overwhelmingly as a patent plaintiff, not as a product catalog. I could not verify a shipping commercial product embodying claim 1 or claim 12, and I will not assert one.
- Current status: operating as of the last available indications; I found no bankruptcy filing, dissolution, or wind-down for ATI. Because ATI is privately held, there are no SEC 10‑K/8‑K filings to cross-reference — the SEC leg of your cross-reference plan is empty by construction, not by omission.
- Enforcement posture (relevant to the verdict): ATI is a serial, self-asserting patent owner. US 6,757,602 specifically was asserted by ATI in its own name against major OEMs and Tier-1 suppliers — documented in the record itself: "Defendant's Invalidity Contentions of claims 1, 2, 4, 8‑10, 12, 13, 16, 18‑20, 22‑24, 26, 27, 29, 30, 32‑34, 36‑38, 40, 41, 43, 44, 46, 47, 49, 51, 52, 54 and 55 of US 6757602 from Automotive Technologies International, Inc. v. American Honda Motor Co., Inc., et al., Civil Action No. 06‑187‑GMS, D. Del., Oct. 9, 2006," and "...Preliminary Invalidity Contentions dated Dec. 10, 2008 in Automotive Technologies, Inc. v. Delphi Corporation, No. 08‑CV‑11048, E.D. Mich."
🔁 Contradiction flagged with the earlier-generated summary. The prior section inferred the patent "likely contains 48 claims total" from a claim-48-depends-from-47 reading. That inference is incorrect. The Honda invalidity contentions expressly enumerate claims 49, 51, 52, 54 and 55 of US 6,757,602, so the patent contains at least 55 claims. The prior section's own caveat ("I flag this as inferred rather than directly confirmed") should be upgraded from inferred to superseded.
Assignment timeline
Recorded assignments found for US 6,757,602: exactly one. There are no post‑issuance assignments in the record I could reach.
2002‑10‑28 (executed) / recorded 2002‑10‑28 — Reel ——/—— (not retrieved; see source limitation above)
- Conveyance: Assignment of Assignors' Interest ("ASSIGNMENT OF ASSIGNORS' INTEREST (SEE DOCUMENT FOR DETAILS)") — the standard inventor→company original assignment, not a post-issuance transfer.
- Assignor: Chen, Tie-Qi; Morin, Jeffrey L.; Xu, Kunhong; Kussul, Michael E.; Johnson, Wendell C.; DuVall, Wilbur E.; Breed, David S. (all seven named inventors)
- Assignee: Automotive Technologies International, Inc.
- Correspondent: Not retrieved. USPTO did not expose the correspondent field to me in this session; I am recording it as unknown rather than inferring the likely ATI outside counsel. (The single-appearance correspondent here would in any event not be an NPE signal — the signal you're fishing for is recurrence of the same attorney across multiple shell LLC links. There are no shell-LLC links in this chain to compare against.)
- Context: Original assignment at formation of title — executed ~8 weeks after the 2002‑09‑03 filing, simultaneous with the application being filed by ATI itself. Not a fire-sale, not a securitization, not a transfer-to-asserter.
No further recorded conveyances. Google Patents' legal-events feed for US 6757602 B2 lists one reassignment event (2002‑10‑28) and then jumps straight to 2017‑03‑07 "Adjusted expiration". There is no Change of Name, no Merger, no Security Agreement, and no Release in the record, and no transfer to a licensing entity.
Corroborating ownership read-out (non-authoritative, but directionally useful): a Korean IP-Navi portfolio table listing ATI's holdings records 6757602 … 등록일 2004-06-29 … 매입일 2002-10-28 … 소송활용 3회 — i.e., an "acquisition date" of 2002‑10‑28 (matching the assignment) and use in litigation 3 times. This is consistent with a single in-bound assignment followed by ATI's own assertion activity, and inconsistent with an intervening ownership transfer.
Litigation chronology for context (not ownership events):
| Date | Case | Note |
|---|---|---|
| 2006 | ATI v. American Honda Motor Co., et al., D. Del. 1:06‑cv‑00187 | '602 asserted; invalidity contentions served Oct. 9, 2006 |
| 2006 | D. Del. 1:06‑cv‑00391 | listed on the patent's litigation tab |
| 2008 | ATI v. Delphi Corp., E.D. Mich. 08‑cv‑11048 | invalidity contentions Dec. 10, 2008 |
| 2008 | E.D. Tex. 2:08‑cv‑00057 | flagged "Critical" on the Google Patents record |
| 2010 | E.D. Mich. 2:10‑cv‑10647 | same case number appears in the ATI v. Delphi consolidated appeal, CAFC 2011‑1292 — whether '602 was asserted in this specific case remains unverified per the earlier section, and I could not improve on that here |
| 2017‑03‑07 | Adjusted expiration | Expired – Fee Related |
Timeline diagram
timeline
title Ownership of US 6757602
1997 : Priority family begins inside ATI
2002 : Application filed 3 Sep 2002
: Seven inventors assign to ATI 28 Oct 2002
2004 : Patent issued 29 Jun 2004
2006 : ATI asserts 602 against Honda
: Second D Del case filed
2008 : ATI asserts 602 against Delphi
: EDTex case filed
2010 : ATI files in E D Mich
2017 : Expired for failure to pay fees
NPE / troll-pattern signals
| # | Signal | Call | Basis |
|---|---|---|---|
| 1 | Shell-entity transfer | Not present | No transfer of record at all after the 2002‑10‑28 in-bound assignment. No "IP/Patents/Licensing/Holdings/Ventures" assignee appears anywhere in the chain. No registered-agent address, no single-purpose LLC. |
| 2 | Known asserter in the chain | Not present (for this patent) / unclear (portfolio-adjacent) | The assignee is ATI — not on the Acacia / Marathon / IV / IPNav / Wi-LAN / Conversant / Vringo / Pendrell / Round Rock rosters I searched. However: the sibling ATI-origin portfolio was transferred to American Vehicular Sciences LLC, a high-frequency plaintiff that was the patent owner in IPR2013‑00412 through IPR2013‑00424 and in American Vehicular Sciences LLC v. Toyota Motor Corp., No. 6:12‑cv‑00404/00405 (E.D. Tex.). I could not confirm that US 6,757,602 was among the assets moved to AVS — and the Google Patents "Current Assignee = ATI" field suggests it was not. Do not treat the AVS finding as applying to this patent number. |
| 3 | Repeat correspondent across the chain | Unclear — not determinable | The correspondent of record was not retrievable (see source limitation). With a one-link chain, the recurrence test cannot be run. Recording this as not determinable rather than as negative. |
| 4 | Cascading transfers | Not present | Zero transfers in the record, child LLC or otherwise. Nothing within 24 months, 24 years, or at all. |
| 5 | Pre-litigation transfer | Not present | The single assignment is dated 2002‑10‑28; the first '602 suit is 2006 (D. Del. 06‑cv‑00187). That is ~3 years 11 months before first assertion — the opposite of a venue/standing-engineering transfer. |
| 6 | Bankruptcy fire-sale | Not present | No Chapter 7/11 identified for ATI; no reorganized-seller transfer (no Kodak/Nortel/Polaroid-style record). |
| 7 | Privateering | Not present on this record | ATI sued in its own name (ATI v. Honda, ATI v. Delphi) rather than through a proxy asserting on its behalf. No SEC-filing or Patent Progress/EFF privateering coverage surfaced tying '602 to a proxy plaintiff. |
| 8 | Defensive aggregator | Not present | Chain does not terminate at RPX, AST, LOT, Unified Patents, or OIN. It terminates at expiry (2017‑03‑07, fee-related). |
Inverse signal worth recording: the patent was abandoned for failure to pay maintenance fees in 2017. A patent that an NPE had acquired for assertion value is normally maintained to the end of term. Fee-abandonment is affirmative evidence the owner saw no residual assertion or licensing value — which cuts against any NPE-acquisition hypothesis.
Verdict
Insufficient data (falling within the rubric's own definition: "no records, or only the original assignment").
Justification. The only recorded assignment is the 2002‑10‑28 inventor→Automotive Technologies International, Inc. in-bound assignment, executed eight weeks after the 2002‑09‑03 filing; Google Patents shows Original Assignee = Current Assignee = ATI, with no intervening Change of Name, Merger, Security Agreement, or licensing-entity conveyance, and the patent was abandoned for non-payment of maintenance fees on 2017‑03‑07. With a one-link chain there is no post-issuance ownership movement to score against the NPE tests — signals 1, 4, 5, 6, 7 and 8 are affirmatively not present, and signal 3 is not determinable because the recording correspondent could not be retrieved. Caveat that keeps this from being a clean "operating-company" verdict: ATI has publicly behaved as a self-asserting technology licensor rather than a manufacturer — it sued Honda, Delphi and others on the '602 in its own name and, per a portfolio table, used this patent in litigation three times — so if the question you actually care about is "was this patent used offensively by a non-manufacturer," the answer is arguably yes even though the assignment record shows no NPE-style transfer. The assignment chain simply does not carry the evidence either way.
Verify at: USPTO Assignment Center — https://assignmentcenter.uspto.gov/ (search patent number 6757602); legacy interface — https://assignment.uspto.gov/patent/index.html. Pulling the reel/frame and the correspondent of record for the 2002‑10‑28 entry would let you close signal 3 and upgrade or downgrade this verdict.
Two open items I could not close: (i) the reel/frame, exact execution date, and correspondent for the 2002‑10‑28 assignment; (ii) whether US 6,757,602 was among the ATI assets acquired by American Vehicular Sciences LLC — the answer materially changes the NPE read, and I found no evidence it was.
Generated 9/22/2026, 6:45:53 PM
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
I'll pull the "References Cited" data for US 6,757,602 from live sources before analyzing.
The general searches aren't returning the citation list. Let me target the front-page "References Cited" data directly.
Let me target Justia and the USPTO full-text record, which reproduce the front-page citation lists verbatim.
Retrieval status — read this first
I was able to reach the authoritative full text of US 6,757,602 (the version supplied in your message, fetched from Google Patents) and several live secondary sources. I was not able to retrieve the verbatim front‑page (56) References Cited table for 6,757,602 — the Google Patents rendering truncated before that section, and my searches for "References Cited" returned the citation lists of other patents (e.g., US 7,676,062, a later ATI patent that cites 6,757,602), not the '602 front page.
Therefore I am not going to reconstruct the (56) list from memory. What I can do, grounded in the authoritative specification text, is set out the prior‑art references that the '602 patent itself identifies, names, cites and argues against. Those are the references the applicant treated as the relevant art, and they are the natural starting point for a § 102 analysis. I flag unverified items explicitly.
Statutory framework (important threshold point)
- Application 10/234,436 was filed 2002‑09‑03; the '602 patent is a continuation‑in‑part of the 1997–2001 ATI family.
- AIA 35 U.S.C. § 102 does not apply — the effective filing date precedes 2013‑03‑16. Pre‑AIA § 102(a), (b), (e), (g) govern.
- Because it is a CIP, subject matter carried over from the parents gets the 1997 priority date, while new matter gets the 2002‑09‑03 date. The date basis has to be fixed claim‑by‑claim and limitation‑by‑limitation before any § 102 rejection is run. This is the single biggest analytical risk in this patent.
Side note resolving an item flagged in the earlier section: the previously unexplained "prior art date 1997‑02‑06" on the Google Patents record is consistent with ATI application US 08/798,029, filed 1997‑02‑06, which appears in the priority chain of the sibling ATI patent US 7,407,029 (per the Espacenet priority list). That is a likely — not confirmed — explanation for the 1997‑02‑06 date.
Prior art identified in the '602 specification
A. Sensor / occupant‑position patents
| # | Citation | Date | Nature |
|---|---|---|---|
| 1 | US 5,071,160 (White et al.) | issued 1991‑12‑10 | Acoustic (ultrasonic) occupant position sensor for airbag control |
| 2 | US 5,118,134 (Mattes et al.) | issued 1992‑06‑02 | Occupant position measured by ultrasonic / active–passive IR / microwave radar / "electric eye," used as a crash sensor |
| 3 | US 5,074,583 (Fujita et al.) | issued 1991‑12‑24 | Occupant position inferred indirectly from seat position + vertical occupant size via an ultrasonic displacement sensor above the head |
| 4 | "Kithil" (capacitive proximity/airbag‑disable sensor; number not given in the '602 text) | — | Static‑electric‑field capacitive sensor disposed in the seat/vehicle to disable the airbag |
| 5 | US 5,684,701 (Breed) | issued 1997‑11‑04 | Neural‑network‑based crash sensor / severity classification |
| 6 | "Corrado et al." (commonly US 5,482,314, Corrado et al., issued 1996‑01‑09 — number not given in the '602 text) | 1996‑01‑09 | Sensor‑fusion (fusion‑matrix) approach to rear‑facing‑child‑seat / occupant detection |
Brief descriptions and § 102 potential
White et al. — a single acoustic sensor/detector mounted lower than the steering wheel, with a plurality of such sensors suggested because a single sensor can be defeated (e.g., by a hand on the radio). The '602 specification criticizes it for not disclosing transducer placement, not combining sensors to monitor particular locations, and no adaptation process or pattern‑recognition combination.
§ 102: potentially anticipates narrow claims to "detect presence of an occupant and suppress deployment." It does not disclose classifying occupant type and then size, nor size‑selected position algorithms, so it does not anticipate claim 1; nor the temporal‑feedback claims 12/18/32; nor the child‑seat‑orientation claim 46. Best used under § 103.Mattes et al. — occupant‑position measurement via multiple sensing modalities, but used to gauge crash severity, not out‑of‑position state, and with no combination‑of‑sensors or pattern‑recognition teaching.
§ 102: does not anticipate claims 1, 12, 18, 32 or 46 (no occupancy‑state classification, no algorithm selection, no recursive/feedback determination). § 103 candidate only.Fujita et al. — position determined indirectly (seat position + occupant height). Notably does not control/suppress deployment on out‑of‑position, and does not detect a rear‑facing child seat.
§ 102: non‑anticipatory for all five independent claims. Relevant § 103 art against the "position" limitations.Kithil — capacitive/field sensing of occupant proximity to disable the airbag. The '602 specification devotes substantial text to arguing that Kithil's "static electric field" is in reality a wave sensor (oscillator‑driven), i.e., attempting to bring it within the same conceptual genus.
§ 102: this is the most interesting reference because the applicant felt compelled to distinguish it at length. It can potentially anticipate claims drawn to occupant detection by a capacitive/field transducer controlling deployment, but it does not disclose wave‑based (ultrasonic) multi‑transducer pattern recognition, size classification, or the feedback architecture. Not anticipatory of claims 1, 12, 18, 32, 46 as recited.Breed '701 — neural network crash sensor; severity categorization.
§ 102: does not anticipate the occupancy‑state claims. But it is directly material to the dependent claims reciting neural‑network / trainable pattern‑recognition implementation (e.g., claims 2–3, 7, 24–25, 36–39). Caveat: same inventor (Breed) — likely not "by another" under § 102(a)/(e); it may be § 102(b) art (issued 1997) as to new matter claiming a 2002 date.Corrado et al. — multiple sensors whose outputs are combined (fusion matrix) before algorithmic processing, to decide enable/disable. The '602 specification expressly distinguishes this: the '602 architecture passes a separate data stream from each sensor to the processor without pre‑combination, and argues sensor fusion ≠ neural network.
§ 102: It potentially anticipates the concept of enable/disable of an airbag based on sensor‑derived occupancy (relevant to the preamble and the gating of claim 1), but the applicant's own differentiation (no fusion matrix, separate streams, trainable combination NN) is directed precisely at defeating anticipation. Strong § 103 candidate; weak § 102 candidate as to claims 1, 12, 18, 32, 46.
B. Optical / eye‑tracking patents (addressed as prior art)
| # | Citation | Date | Nature |
|---|---|---|---|
| 7 | JP 3‑42337 (A) (Ueno) | published c. 1991 (Japanese unexamined app.) | Facial imaging, eye/iris location, driver drowsiness/gaze state |
| 8 | US 5,008,946 (Ando) | issued 1991‑04‑23 | Rule‑based isolation of driver's eyes/mouth to control vehicle devices |
| 9 | US 5,298,732 (Chen) | issued 1994‑03‑29 (filed 1993‑02‑18) | Eye location to position a glare filter between light source and driver |
| 10 | US 5,305,012 (Faris) | issued 1994‑04‑19 | Two spaced passive‑IR cameras to find the driver's eyes; headlight‑glare reduction |
Brief description / § 102 potential: all four are directed to finding/using the driver's eyes for glare control, device control, or drowsiness detection. Critically, the '602 specification notes none of them (i) identifies or locates other objects (RFCS, occupants generally) relative to the passenger compartment or airbag, (ii) determines position relative to the airbag, or (iii) uses trainable pattern recognition. None of these references anticipates any of claims 1, 12, 18, 32 or 46. Their value is as background art showing that optical occupant monitoring was known, and as § 103 art against any claim drawn to "an optical/camera sensor" in the alternative.
C. Applicant's own / family references (cited as the operative art)
| # | Citation | Date | Note |
|---|---|---|---|
| 11 | US 5,829,782 (Breed et al.) | issued 1998‑11‑03 | Vehicle identification/monitoring controlling inflators |
| 12 | US 5,943,295 (Breed et al.) | issued 1999‑08‑24 | This is the '602 priority document (from US 08/919,823) |
| 13 | US 5,835,613 (Breed et al.) | issued 1998‑11‑10 | Optical/rear‑facing‑child‑seat and occupant monitoring |
| 14 | US 5,845,000 (Breed et al.) | issued 1998‑12‑01 | Combined acoustic + optical occupant sensing |
| 15 | US 6,324,453 (Breed et al.) | issued 2001‑11‑27 | Pulsed quantum‑well diode laser ranging |
| 16 | US 6,242,701 (Breed et al.) | issued 2001‑06‑05 | Weight sensing (expressly incorporated by reference for sensors 6/7) |
§ 102 analysis of this group — this is where the analysis turns on "by another":
- US 5,943,295 is in the '602 priority chain and therefore is not prior art to the claims entitled to the 1997 priority date. It is only potentially prior art as to new matter added in the 2002 CIP and only if it otherwise qualifies.
- US 5,829,782, 5,835,613, 5,845,000, 6,324,453 and 6,242,701 all list Breed as an inventor, as does '602. Same‑inventive‑entity references are not "by another" under pre‑AIA § 102(a) or § 102(e), and are only § 102(b) art as to subject matter on which '602 is not entitled to the earlier date. Net: none of them anticipates claims 1, 12, 18, 32 or 46 in a straightforward way; they are portfolio companions, not true anticipatory art.
D. Non‑patent literature
| # | Citation | Date |
|---|---|---|
| 17 | Gorman, R.P. & Sejnowski, T.J., "Analysis of Hidden Units in a Layered Network Trained to Classify Sonar Targets," Neural Networks, Vol. 1, pp. 75–89 | 1988 |
| 18 | Gorman & Sejnowski, "Learned Classification of Sonar Targets Using a Massively Parallel Network," IEEE Trans. Acoustics, Speech, and Signal Processing, Vol. 36, No. 7 | July 1988 |
§ 102 relevance: these are cited for the general proposition that neural networks can classify sonar returns. They are not anticipatory of any claim (wrong field, no vehicle/occupant/airbag disclosure), but they are material to the enablement/obviousness backdrop for the neural‑network‑implementation dependent claims.
§ 102 mapping by independent claim (preliminary)
| Independent claim (per prior section) | Closest cited art | Does it anticipate? |
|---|---|---|
| Claim 1 — classify type → disable if empty/RFCS → classify size → determine position via size‑selected algorithm → disable/adjust if out‑of‑position | White '160; Mattes '134; Fujita '583; Corrado; Kithil | No. No cited reference discloses the size‑selected plurality of position algorithms. § 103 combination is the realistic attack. |
| Claim 12 — iterative occupancy state using new data plus prior state (feedback) | Breed '701; Corrado; Mattes | No. None discloses feeding a prior occupancy‑state determination back into the current determination. |
| Claim 18 — iterative identification + position; feed back prior identification | Breed '701; White; Corrado | No. |
| Claim 32 — iterative identification + position; feed back prior position determination | Breed '701; Mattes; White | No. (Mattes tracks occupant motion as crash severity, a different purpose — § 103 only.) |
| Claim 46 — if child seat identified, determine orientation and use orientation‑selected position algorithm | Corrado (RFCS detection); White; Fujita | No. Corrado detects RFCS presence; none discloses orientation‑selected position algorithms. |
References that cite 6,757,602 (not prior art to it)
For completeness — live sources show 6,757,602 appearing in the "Referenced Cited" lists of later patents, e.g., US 7,676,062 (Breed et al.) and US 10,542,961, and in the search reports of later PCT applications (e.g., PCT/MY2010/000234, PCT/IB...) and EP 1,656,284. These are subsequent to '602 (2004) and therefore cannot be § 102 prior art against it. They are useful only as evidence of the technology's citation footprint.
What I could not verify (do not treat as established)
- The verbatim front‑page (56) References Cited list for 6,757,602 — not retrieved. The list above is drawn from the specification's citations and discussions, which is a different (though largely overlapping) set from the examiner‑cited front‑page list. The front page typically also carries examiner‑added art (e.g., additional occupant‑sensing patents) not discussed in the specification.
- Patent numbers for "Kithil" and "Corrado et al." — the '602 text names these by author only. I have proposed US 5,482,314 for Corrado based on a corroborating citation list on a sibling ATI patent, but I could not confirm it, and I have not assigned a number to Kithil.
- Issue dates for White '160, Mattes '134, Fujita '583, Ando '946, Chen '732 and Faris '012 are given as I understand them; only some could be cross‑corroborated in this session. They should be confirmed against the front pages before being used in any filing or opinion.
- Whether any cited reference was actually applied by the examiner in a rejection during prosecution of 10/234,436 — I did not obtain the file history (I‑file? No: this is a pre‑2011 paper/early‑electronic file; the USPTO PatentCenter IFW for 10/234,436 would resolve it). This is the single most valuable next step, because it will reveal which references the examiner considered material and how the applicant distinguished them.
- Litigation‑sourced invalidity contentions — a live search hit surfaced ATI v. Delphi, E.D. Mich. No. 08‑CV‑11048 invalidity‑contention exhibits referencing ATI patents, but I did not confirm that 6,757,602 was among the patents whose claims were charted there. The earlier section's open items (E.D. Tex. 2:08‑cv‑00057; E.D. Mich. 2:10‑cv‑10647; Fed. Cir. 2011‑1292) remain unverified for '602 specifically.
Bottom line
- No reference cited in the '602 specification is a clean § 102 anticipation of any of the five independent claims (1, 12, 18, 32, 46) as those claims were characterized above. The genuinely novel hooks — (i) size‑selected position algorithms, (ii) temporal feedback of a prior occupancy state / identification / position determination, and (iii) orientation‑selected position algorithms for a child seat — are not taught by White, Mattes, Fujita, Kithil, Corrado or Breed '701.
- The cited art is best deployed under § 103: White + Mattes + Fujita for the sensing/position limitations; Corrado for RFCS detect‑and‑disable; Breed '701 for the neural‑network limitations; Gorman & Sejnowski for the trainability of NN classifiers.
- Two threshold traps: (a) the CIP date question (1997 priority vs. 2002 new matter), which determines which art is "prior"; and (b) "by another" — a large share of the cited ATI references share inventor Breed with '602 and are therefore weak or unusable § 102(a)/(e) art.
- To close the gaps, the authoritative next steps are the USPTO PatentCenter IFW for application 10/234,436 (to get the actual (56) list and examiner citations/rejections) and the granted front‑page PDF of US 6,757,602. I could not reach those records in this session, and I have deliberately not fabricated the (56) contents.
Generated 9/22/2026, 6:46:21 PM
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
I'll ground this § 103 analysis in the prior-art references actually discussed in, and cited by, the '602 record. Let me verify their identities, dates and disclosures first.
Obviousness Analysis — US 6,757,602 B2 under 35 U.S.C. § 103
Scope note / assumptions (read first). The instruction was to use "the results from the Prior Art section of this page." The Google Patents record supplied in this analysis does not include a front-page "References Cited" list — only the "Prior art keywords" field (occupant / sensor / seat / data / vehicle) and the background discussion of prior art inside the specification. My attempt to pull the examiner-cited reference list separately hit the tool-call limit and was not retrieved. I am therefore building this analysis on (i) the third-party references the '602 specification itself identifies and characterizes, and (ii) references surfaced in this session's live searches. Where a reference date is from my training data and was not re-verified in this session, I say so. ★ marks unverified dates.
1. Legal framework applied
The '602 application was filed 2002-09-03, so pre-AIA § 103 governs (AIA first-inventor-to-file applies only to applications filed on/after 2013-03-16). The analysis therefore uses Graham v. John Deere, 383 U.S. 1 (1966), KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007) (teaching/suggestion/motivation is not the only route; "obvious to try," known-technique-to-improve-similar-device, and finite-number-of-predictable-solutions rationales are available), and In re Keller / In re Merck (one cannot show non-obviousness by attacking references individually where the ground is a combination).
Two structural points unique to this patent, which I flag as threshold issues that materially affect the art set:
- The '602 is a continuation-in-part. The family priority documents are the 1997–2001 applications listed in the earlier section (US 08/919,823 → 5,943,295; 09/382,406 → 6,529,809; 09/474,147 → 6,397,136; 09/853,118 → 6,445,988). Any claim element not supported by the earlier applications gets only the 2002-09-03 date. If the "plurality of algorithms selected by size" limitation (claim 1) or the cross-time feedback limitations (claims 12/18/32) are new matter, then ATI's own earlier issued patents in this family become § 102(b) prior art against those claims.
- Common-ownership caveat. Where the art is ATI's own earlier work (Breed et al.), pre-AIA § 103(c) disqualifies § 102(e)/(f)/(g) art that was commonly owned at the time the invention was made. So the strongest § 103 grounds below deliberately rely on third-party art, with the ATI family used only where it is § 102(b) art (issued/printed more than one year before the critical date) or where a priority/support failure removes the § 103(c) shield.
⚠️ Contradiction to carry forward: the earlier section flagged that Google lists a "prior art date / priority date" of 1997-02-06 while the earliest listed external priority document is 08/919,823 filed 1997-08-28. That unresolved discrepancy is directly material here, because every § 102(b) determination turns on the critical date. Do not treat any date below as final until the priority chain is reconstructed from the applications themselves.
2. The prior-art set relied on
| Ref. | Identity as established in this session | Relevance | Date |
|---|---|---|---|
| Corrado '314 | U.S. 5,482,314, Automotive occupant sensor system and method of operation by sensor fusion, Aerojet General; filed 1994-04-12 | Primary. Abstract verified live: senses "presence, position and type of an occupant in a passenger seat," "as well as for sensing the presence of a rear-facing child seat therein," "for use in enabling or disabling a related airbag activator"; IR + ultrasonic fusion; "historical reference data are considered in the process of making a decision" | Issued 1996-01-09 (verified) |
| Corrado '085 / '241 | U.S. 5,890,085 (PCT/US95/04780, filed 1995-04-12) and its division U.S. 6,272,411 (filed 1998-09-30, Robert Bosch) | Same family; '241 abstract adds "position and type classification … as well as … a rear-facing child seat … to enable, disable or control inflation rate or amount of inflation" | '085 1999★; '241 2001-08-07★ (filing/division chain verified) |
| White '160 | U.S. 5,071,160 (White et al.) | The '602 spec concedes this is one of only two occupant-sensor-location references; plural acoustic sensors + "error correction circuitry" to discriminate a moving hand from the occupant | 1991★ |
| Mattes '134 | U.S. 5,118,134 (Mattes et al.) | The other conceded reference; measures the change in position of an occupant over time via ultrasonic/IR/radar → drives the temporal-feedback claims | 1992★ |
| Fujita '583 | U.S. 5,074,583 (Fujita et al.) | Determines occupant height/size indirectly (seat position + ultrasonic above the head) and varies inflation rate with proximity | 1991★ |
| Kithil | U.S. 5,602,734 et al. (Kithil) | Capacitive / electric-field occupancy sensing; the '602 spec devotes several pages to it | 1997★ |
| Breed '701 | U.S. 5,684,701 (Breed) | Neural-network-based crash sensor — third-party-available teaching that neural nets are used in this exact control loop | 1997★ (ATI-owned — § 103(c) caveat) |
| Gorman & Sejnowski (1988) | Analysis of Hidden Units in a Layered Network Trained to Classify Sonar Targets, Neural Networks 1:75-89 (1988); Learned Classification of Sonar Targets Using a Massively Parallel Network, IEEE Trans. ASSP 36(7) (1988) | Printed publications teaching neural-network classification of reflected acoustic returns — the '602 spec itself says its RFCS classifier "is similar to that described in papers by Gorman et al." | 1988 (verified existence; genre-verified) |
| ATI position/velocity family | WO 94/22693 (publ. 1994); U.S. 5,653,462; U.S. 5,848,802 — "Vehicle occupant position and velocity sensor" | Teach storing "positions of the passenger over some interval of time" and deriving velocity from successive position measurements | 1994 / 1997 / 1998★ |
| Secondary | U.S. 5,893,382★ — airbag deployment control from seat position (partial vs. full deployment); U.S. 5,424,711★ — ultrasonic interior monitoring | Support "adjust deployment" and multi-sensor interiors | 1995–1999★ |
| Driver-eye art | Ueno, JP 3-42337(A); Ando, U.S. 5,008,946; Chen, U.S. 5,298,732; Faris, U.S. 5,305,012 | The '602 spec squarely distinguishes all four; useful only as evidence that frame-to-frame tracking of a vehicle occupant was a known object | 1991–1994★ |
3. Element mapping and combinations
3.1 Claim 1 — type classification → size classification → size-selected position algorithm
| Claim element | Where taught |
|---|---|
| (a) acquire sensor data re occupant | Corrado '314 (IR + US); White '160; Kithil |
| (b) classify type of occupant | Corrado '314/'241 ("presence, position and type classification") |
| (c) empty or RFCS → disable/adjust | Corrado '314 abstract, verbatim: RFCS detection "for use in enabling or disabling a related airbag activator" |
| (d) otherwise classify size | Fujita '583 (occupant height from seat position + over-head ultrasonic) |
| (e) position determined by one of a plurality of algorithms selected by classified size | The only genuine gap. Supplied by the combination below |
| (f) OOP → disable/adjust | Corrado '314; Mattes '134; '602's own cited art |
Ground 1 (primary): Corrado '314 in view of Fujita '583, further in view of Gorman & Sejnowski.
Motivation. Corrado '314 states the problem — occupant type/size/position and RFCS presence — and solves the deployment decision by fusing sensors. Fujita '583 teaches that occupant size is measurable from existing vehicle sensors and that the response should be a function of that size. A POSITA seeking to implement Corrado's "type classification" output for a passenger seat, where the occupant population ranges from an infant carrier to a large adult, would look to Fujita and use the size output as a routing variable. That is KSR's "known technique to improve a similar device in the same way."
For the "plurality of algorithms selected by size" limitation, three independent supports — and note this is where the patent's own specification becomes an admission:
- Applicant's admission of the modularization technique. The '602 specification states: "the overall accuracy of the system can be substantially improved by breaking the pattern recognition process down into a larger number of smaller pattern recognition problems" and gives the express example of one network identifying the object and another determining its position. A patent's own characterization of what was known is admissible; here the applicant has conceded the design principle that the claim's "plurality of algorithms" embodies.
- Gorman & Sejnowski (1988) teach that a layered network's architecture is chosen to fit the class of target being classified. Selecting a classifier/model per input regime was, by 2002, a routine engineering choice.
- Fujita '583 teaches size-dependent control parameters — i.e., a size-indexed decision structure.
Predictability. Position determination for a small occupant (bounded volume of possible head/torso locations) vs. a large adult is a finite, identified set of solutions; the '602 itself uses exactly this insight in describing distinct "circles"/volumes for RFCS vs. larger occupant (FIGS. 6–7). Where the volumes differ and the transducers are aimed at those volumes, using a size-matched algorithm is the natural, predictable implementation.
Anticipation flag: if "type classification" in Corrado '314/'241 is read to subsume size (both abstracts recite "type classification" and RFCS presence, which necessarily implies occupant dimension), then claim 1 may be anticipated under § 102(b) rather than merely obvious. I would plead this as the stronger position unless the specification's own lexicography ("size" is separate from "type") is read into the claims.
3.2 Claim 12 — iterative occupancy state with feedback of the prior occupancy state
Ground 2: Mattes '134 (or the ATI position/velocity family) in view of Corrado '314, further in view of Kalman/recursive-estimation art.
- Corrado '314 expressly considers "historical reference data" in reaching the deployment decision — i.e., a prior-state influence on the current decision is disclosed.
- Mattes '134 measures the change in occupant position — necessarily comparing a current measurement to a prior one. The ATI position/velocity family goes further, storing "positions of the passenger over some interval of time."
- Motivation, from the '602's own admissions: the spec concedes that ultrasound is limited to ~10 ms updates, that reflections from unwanted surfaces "add noise to the data," and that "there is a limited distance an occupant can move in 10 milliseconds." Feeding back the prior state to constrain the current estimate is the textbook, obvious response to exactly this noise/update-rate problem, and the applicant has supplied the motivation for us.
- The spec likewise states that accuracy "can be improved if the system uses data indicating its own recent decisions." That is an admission that the feedback of claim 12 was a known and desirable technique.
Averaging/tracking would normally be improper for dynamic OOP (the spec concedes this too), but claim 12 is not limited to the dynamic case — which weakens any argument that the feedback element is narrowly non-obvious.
3.3 Claims 18 and 32 — iterative identification + position, with feedback of the prior identification (18) or prior position (32)
Ground 3: Corrado '314/'241 + Mattes '134 / ATI position-velocity family + Gorman & Sejnowski.
- Claim 32's element — position determined from the new data and the position determination from a preceding time — is a recursive estimator. Recursive estimation (Kalman) for noisy range data was standard well before 1997 and is expressly acknowledged in the sibling ATI specification language as a known "pattern recognition system" ("fuzzy logic, sensor fusion, Kalman filters, correlation as well as linear and non-linear regression"). Claim 32 therefore reads on a known, name-checked technique applied to a known measurement problem.
- Claim 18's element — identification carried forward — is temporal classification hysteresis/continuity: once the system has decided "forward-facing adult," a single anomalous frame should not flip it to "RFCS." The spec's own text supplies both the technique and the motivation ("if the neural network system had determined that a forward facing adult was present, then that information can be used as input into another neural network, biasing any results..."). This is a biased-estimate / prior-influence architecture, and KSR covers exactly this kind of "apply a known technique to a known problem with predictable results."
- Secondary support: Ueno / Ando / Chen / Faris all perform frame-to-frame tracking of vehicle occupants (eyes). Though the '602 spec disparages them for not determining position relative to the compartment, disparagement of the purpose of a reference does not make its temporal-tracking mechanism unavailable as evidence of what was known, and § 103 requires only that the claimed subject matter be suggested.
Dependent claims 8 (prior position fed into the current position algorithm), 20–21/34–35 (identification from a first sensor subset, position from a different second subset). The subset limitation has the strongest third-party motivation in the record: Fujita '583 (seat + overhead US for size/position), Corrado '314 (IR vs. US "each of which 'sees' the world in a unique sense"), and the acoustics/optics division-of-labor teaching (acoustics good at z; single CCD/CMOS good at x-y) that appears across the cited art. Weight sensors (e.g., ATI's 6,242,701) are the obvious source of a shear-sensitive classification subset. Different sensors are good at different sub-tasks is a motivation KSR treats as sufficient.
3.4 Claim 46 — child-seat orientation branch with orientation-selected algorithms
Ground 4: Corrado '314/'241 in view of White '160 or Mattes '134.
This is, in my view, the weakest claim in the set and the most likely to fall.
- Corrado '314 already discloses sensing the presence of a rear-facing child seat to enable/disable the airbag — i.e., orientation discrimination is a stated purpose of the primary reference.
- Corrado '241 goes further, reciting output to "enable, disable or control inflation rate or amount of inflation."
- The RFCS-vs-forward-facing distinction being a classification outcome (see the '602's own definition: "a rear facing child seat is a different object than a forward facing child seat") means that once the classifier is trained to output orientation, using an orientation-indexed algorithm follows from the same modularization principle discussed in § 3.1 — and the '602's FIGS. 6–7 theory (distinct intersection volumes for RFCS vs. larger occupant) is itself the reason why orientation changes which algorithm is appropriate. That theory is in the specification, and the specification's own reasoning is usable as evidence of what a POSITA would recognize.
- The non-child-seat branch of claim 46 ("determine at least one of the size and position of the occupant") is met by Fujita '583 + Corrado '314.
Ground 5 for claim 46 specifically: the ATI grandparent U.S. 5,943,295 is titled "Method for identifying the presence and orientation of an object in a vehicle" — issued 1999-09-24, more than one year before 2002-09-03. If claim 46 rests on new matter added in the CIP, the '295 patent is § 102(b) art against it notwithstanding common ownership, and it discloses child-seat orientation determination for airbag suppression. This is a priority/support inquiry worth running before any validity opinion.
3.5 Dependent claims 2–7, 24–25, 36–39 (pattern recognition / neural network / combination neural network trained on per-state data sets)
Ground 6: Gorman & Sejnowski (1988) + Corrado '314 + Breed '701.
- Gorman & Sejnowski is a third-party printed publication teaching exactly the claimed technique — a neural network classifying reflected acoustic (sonar) returns. The '602 spec concededly says its RFCS classifier "is similar to that described in papers by Gorman et al."
- Corrado '314's fusion is, as the '602 itself states, "a crude pattern recognition process based on deriving the fusion 'rules' by a trial and error process" — the express motivation to substitute a trained system for a hand-crafted rule set. The '602 spec frames the difference between fusion and neural networks as one of efficiency and cost, not as an unexpected result.
- Breed '701 shows neural networks already in a vehicle crash/occupant control loop — but flag § 103(c): if '701 is commonly owned with '602, it is disqualified as § 102(e) art; it remains usable if it qualifies as § 102(b) art (issued 1997 > 1 year before 2002).
- For the "combination neural network … created from a plurality of data sets, each data set representing a different occupancy state" limitation, the training-set-per-class structure is the definitional feature of supervised classification (Gorman & Sejnowski); and the '602 spec's own hierarchical-network discussion ("once the human mind has identified that the object is a tree, the mind does not try to determine whether it is a black bear or a grizzly") is the applicant conceding the hierarchy/modularity design principle.
- For claim 11 (gating — reject incompatible data and re-acquire): White '160's "error correction circuitry" to ignore readings inconsistent with the others, and Corrado's confidence-weighting of sensor inputs, supply both the mechanism and the motivation (rejecting spurious frames rather than acting on them).
4. Motivation to combine — synthesis
A POSITA here is a controls/sensors engineer with vehicle occupant-restraint experience, familiar with (i) ultrasonic/IR/radar ranging, (ii) capacitive/weight sensing, and (iii) trainable classifiers. The record supports at least five KSR-sanctioned motivations:
- Market/regulatory pressure. Airbag-induced deaths of rear-facing-child-seat occupants and of OOP occupants were the acknowledged industry problem (the '602 spec's own framing, and the "Smart Airbag"/FMVSS-208 context). KSR permits recourse to market forces and design incentives.
- Predictable, finite solutions. Position determination for a small occupant vs. a large adult vs. an RFCS occupies bounded, distinguishable volumes (the applicant's own FIGS. 6–7 theory). Selecting among a finite set of algorithms indexed by class is the definition of "obvious to try" where results are predictable.
- Known-technique-to-improve. Modularizing a hard pattern-recognition problem into sub-problems, and feeding back prior decisions to stabilize a noisy measurement stream, are admitted known techniques (specification text quoted above).
- Reference-express suggestion. Corrado '314/'241 expressly contemplate RFCS detection and inflation-rate/amount control; Fujita '583 expressly contemplates size-dependent response. Combining a size sensor with a size-dependent actuator decision is direct TSM.
- Division of labor among sensors. Each sensor "sees the world in a unique sense" (Corrado) and acoustics/optics are respectively good at z and x-y (the cited art). Using different subsets for identification vs. position (claims 20–21, 34–35) is the natural allocation.
5. Rebuttal landscape / what would have to be shown to preserve validity
- No comparative data. The '602 discloses its own performance tables (FIGS. 35–37) but, in the text retrieved, no head-to-head ablation against Corrado-style fusion or against a single-network architecture. Absent unexpected results with a nexus to the size-selected-algorithm and cross-time-feedback features, there is nothing to rebut the prima facie case.
- Secondary considerations. ATI's extensive licensing and litigation program (two confirmed D. Del. actions asserting this patent, per the litigation section above — 1:06-cv-00187-GMS and 1:06-cv-00391-GMS) could be marshalled as industry recognition/commercial success, but the nexus must be to a claimed feature, and the practice is widespread in the field (Corrado, Kithil, Bosch, TRW), which undercuts nexus.
- Teaching away. The only serious non-obviousness argument is the '602 spec's disparagement of Corrado ("the sensor fusion method of Corrado et al. requires that information from the sensors be combined prior to processing … this combination could be found to unnecessarily complicate the processing"). That disparagement, however, is aimed at the fusion-before-processing architecture — which is not recited in independent claims 1, 12, 18, 32 or 46. Under In re Gurley / KSR, a reference's preference for an alternative implementation does not teach away from the claimed subject matter where the claim is silent on it. It would only become relevant if the claim were read to require separate, uncombined data streams — a construction the specification's own § 3.1 discussion of Corrado suggests.
- § 103(c) / priority. The best available defensive posture for the applicant is that (a) the claims are entitled to the 1997 priority date, which removes the ATI family patents as § 102(b) art and invokes § 103(c) to disqualify them as § 102(e) art; and (b) the third-party art (White, Mattes, Fujita, Corrado, Kithil, Gorman) contains no express suggestion of size-indexed or orientation-indexed algorithm selection. That second point is the applicant's real foothold, and it is narrow — it survives only if a court refuses to treat modular model selection as within a POSITA's ordinary skill, which the specification's own admissions make difficult.
6. Bottom line
| Claim | § 103 vulnerability | Best ground |
|---|---|---|
| 1 | High (possible § 102 as well) | Corrado '314/'241 + Fujita '583 + Gorman & Sejnowski |
| 12 | High | Corrado '314 ("historical reference data") + Mattes '134 + applicant's own admissions |
| 18 | High | Corrado '314 + Gorman & Sejnowski + occupant-tracking art (incl. the eye-tracking art the spec distinguishes) |
| 32 | Moderate–High | Recursive estimation (Kalman, acknowledged in the family's own lexicon) + ATI/Mattes successive-measurement teaching |
| 46 | High | Corrado '314/'241 (RFCS orientation + inflation-rate control) + White/Mattes; and, on a CIP-new-matter finding, ATI's own US 5,943,295 ("identifying the presence and orientation of an object in a vehicle") as § 102(b) art |
| 7, 11, 20–21, 34–35, 39 | High | Gorman & Sejnowski; White '160 error-correction; Corrado sensor division-of-labor; Fujita size branch |
Caveats I will not paper over: (1) the examiner-cited "References Cited" list for the '602 front page was not retrievable this session, so this is a background-derived art set, not the art of record; (2) several reference issue dates marked ★ are from training data and unverified live; (3) the 1997-02-06 vs. 1997-08-28 priority discrepancy flagged in the earlier section is unresolved and is dispositive for every § 102(b) determination above; and (4) I have kept every patent number literal — 5,482,314 ≠ 6,272,411 ≠ 6,445,988 ≠ 6,397,136 ≠ 5,943,295, and the RFCS-classification teaching in the "Murphy"/Corrado family must not be conflated with the ATI occupant-sensing family, which shares much of the same specification language.
Generated 9/22/2026, 6:46:52 PM
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.
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