US 8734149

I'll search for authoritative information on US 8,734,149, including any litigation/docket activity.

Let me do additional targeted searches for any CAFC/PTAB 2026 activity and the known litigation.

Let me check for any 2026 disputes or PTAB proceedings involving this patent specifically, and the outcome of the earlier Delaware case.

US 8,734,149 B2 — Verified Data Sheet

I searched for the specific number 8,734,149 (and the "8734149" form) in USPTO/Google Patents, party pleadings, and Federal Circuit/PTAB materials. I did not locate any Court of Appeals for the Federal Circuit 2026 docket, appeal, or PTAB proceeding naming this patent. Everything below that is marked as patent data comes from the authoritative full text you supplied; the litigation items are grounded in the specific documents cited.

Bibliographic data

Continuity (important for scope): 13/620,209 is a continuation of 11/297,129 (now US 8,496,473), which is a continuation of 10/870,808 (now US 7,056,115), which is a continuation of 10/375,223 (abandoned). A child, 14/268,976, issued as US 9,204,942 (the "Related U.S. Application Data" text confirms this chain).

Abstract (as printed)

"A dental template to position an object on a patient's tooth includes digitizing the patient's tooth; adding virtual objects to predetermined locations on the digitized tooth; and fabricating the dental template to locate the object on the patient's tooth. The template can be used for etching or for positioning brackets on teeth."

Plain-language overview of the independent claims

Claim 1 — single-tooth system. A computer-based system for making a dental template that positions an object (e.g., an orthodontic bracket) on a patient's tooth. The programmed computer must:

1. receive a digital model of the patient's tooth;
2. scale that model so the scaled model is larger than the original digital tooth model;
3. add a virtual object to a location on either the digital tooth model or the scaled tooth model (the object ends up placed on one of the two);
4. superimpose the enlarged scaled tooth model over the original digital tooth model; and
5. output fabrication data for making the template that will locate the object on the patient's tooth.

The core concept: digitally "grow" a tooth shell, subtract/overlay the true tooth, and use the resulting virtual geometry plus a virtual bracket to generate a physical guide (a "port-hole" template) rather than a bracket-carrying indirect-bonding tray.

Claim 13 — multi-tooth (arch) system. The same idea applied to two or more teeth: receive digitized teeth of at least two teeth; scale the digitized teeth to produce scaled digital teeth; add virtual objects to locations on the digitized teeth or the scaled teeth (placed on one or the other); superimpose the scaled digital teeth over the digitized teeth; and output fabrication data for a template that locates the orthodontic objects on the patient's teeth.

Dependent-claim highlights (useful for the scope picture)

• Independent-claim clarifiers: claims 3/4 (place the virtual object on the superimposed scaled model, at a predetermined location and orientation) and claims 12/20/21 (the "either/or" placement election — on the digital model/teeth vs. the scaled model/teeth).
• Degree of enlargement: claims 6 and 15 — scaling is between 5% and 50% larger (the specification's process steps use "est. 105–150%").
• Object type: claims 7 and 16 — the virtual object may be a 3D virtual model of a physical bracket.
• Digital clean-up steps: claim 5 (remove the tooth model from the scaled model to form a "virtual appliance"); claim 8 (remove structure at, below, or along the gingival line); claim 9 (remove buccal, gingival, or lingual structures); claim 10 (remove structure in proximal contact with an adjacent tooth).
• Manufacturing output: claim 11 — fabrication data for rapid prototyping (specification names stereolithography, FDM, 3-D printing; and vacuum/pressure molding over a printed positive model, e.g., BIOSTAR / Tru-Tain material).
• Articulated embodiment: claim 18 — data for a plurality of tooth-fitting members with openings to guide object placement, plus data for at least one connecting member that movably connects adjacent tooth-fitting members; claim 19 — thermoforming an elastomeric substance over the tooth-fitting members (the FIG. 5A/5B articulated, flexibly-linked segment embodiment).
• User interaction: claims 2 and 14 — at least part of the program executes on user input.

Disclosed (unclaimed-at-issuance) subject matter worth noting

The specification also describes using the template as an etching template (windowed or concave "pre-loaded gel" versions), the four fabrication modalities (Direct‑Unified, Indirect‑Unified, Direct‑Articulated, Indirect‑Articulated), and property-switch materials (temperature/pH/moisture responsive, multi-layer, fiber-reinforced).

Litigation and docket status (searched, with sources)

• No CAFC 2026 appeal found. I could not identify any Federal Circuit 2026 docket or opinion involving 8,734,149. The 2026 CAFC activity in the Align ecosystem that the searches surfaced concerns different patents — e.g., Dental Monitoring SAS v. Align Technology (No. 24‑2270, July 7, 2026), addressing the '248 and '409 patents on § 101 and obviousness, not the '149 patent.
• No PTAB proceeding found naming 8,734,149. The PTAB/ITC materials surfaced (e.g., IPR2021‑01120, ITC 337‑TA‑1091) concern other Align patents such as the '228, '538, '647, and '661 patents.
• Principal identified case: Align Technology, Inc. v. 3Shape A/S, 3Shape Inc., and 3Shape Trios A/S, C.A. No. 1:17‑cv‑01647‑LPS (D. Del.), filed Nov. 14, 2017. The '149 patent was one of the patents asserted (along with 9,566,132; 8,545,221; 8,092,215; and 7,056,115). Source: Align's complaint appendix in D. Del. C.A. No. 1:20‑cv‑01492, and Align's Nov. 14, 2017 press release listing the '149 patent among 26 asserted patents.
• Claim construction (June 6, 2019, C.A. 17‑1647‑LPS‑CJB). The court declined to construe "scale/scaling/scaled digital teeth" (rejecting 3Shape's proposed "isotropically"), and declined to limit "virtual object(s)" to "virtual orthodontic appliance(s)." The court relied on the specification's own distinction between "object" and "appliance."
• Summary judgment (Oct. 8, 2020, D. Del.). 3Shape moved for SJ of invalidity under 35 U.S.C. § 112(1) or non‑infringement of the '149 and '115 claims (D.I. 289/293), arguing "scaling" cannot include "offsetting," that Align's construction lacked written description/enablement, and § 101. All motions were denied (D.I. 425). The court held "scaling" needs no construction, that the intrinsic record does not exclude "offsetting," that Align's unrebutted expert declaration created a genuine dispute of material fact on written description, and that 3Shape's enablement and § 101 arguments were insufficient. Sources: Docket Alarm docs 315 and 425; CourtListener/Casetext opinion.
• The later ClearCorrect dispute (Align v. ClearCorrect, No. 6:24‑cv‑00187‑ADA‑DTG, W.D. Tex.) that appeared in my searches asserts other Align patents (the "Materials Patents," "Treatment Planning Patents," and the '936 patent) — not 8,734,149.

Uncertainty flags

• I found no evidence the '149 patent was part of the ITC § 337 investigations (337‑TA‑1091 / the later Angelalign ITC action); the ITC patents Align listed were a partially overlapping but distinct set. Treat any ITC connection as unconfirmed.
• Several secondary aggregator pages (e.g., Golden wiki, unifiedpatents) show a priority date of 2003‑02‑25 in one instance versus 2003‑02‑26 elsewhere. Per the authoritative text and Google Patents record, the priority date is 2003‑02‑26 (the Feb. 25 value appears to be a data artifact).
• Some third-party briefs paraphrased claim 13 and cross-reference "claim 16" for the 3D-virtual-bracket limitation, while the issued claim set as published lists that limitation in claim 7 (with claim 16 in the '149 set also reciting virtual-object content). I have reported the claim text exactly as it appears in the granted patent.
• I did not obtain the ultimate disposition (trial result, settlement, or dismissal) of the Align v. 3Shape '149 patent case; if a 2026 CAFC appeal exists, it would most plausibly arise from a case that does not name 8,734,149 in my search results. I cannot confirm one.

I'll search for litigation involving US patent 8734149.

Let me dig deeper into the identified case and verify details.

Let me check for PTAB proceedings and any other cases involving this patent.

Litigation Involving U.S. Patent No. 8,734,149

Summary

I identified one (1) district court litigation in which U.S. Patent No. 8,734,149 ("Systems and methods for fabricating a dental template," Align Technology, Inc.) was asserted. I found no other U.S. district court cases, ITC investigations, or PTAB proceedings specifically directed at the '149 patent, though I note important limitations to that finding below.

Case 1 — Align Technology, Inc. v. 3Shape A/S, 3Shape Trios A/S, and 3Shape Inc.

Grounding:

• The Stanford NPE Litigation Database records exactly one case for patent 8734149: Align Technology, Inc. v. 3Shape A/S et al, Civil Action 1:17-cv-01647, D. Del., with Align categorized as a "Product company" rather than an NPE (https://npe.law.stanford.edu/patent/8734149). The same single case is listed for the related patent 7056115 (https://npe.law.stanford.edu/patent/7056115).
• Align's November 14, 2017 press release confirms it filed six patent infringement actions (four district court complaints + two Section 337 ITC complaints) asserting 26 patents against 3Shape, and expressly lists 8,734,149 "Systems and methods for fabricating a dental template" among the asserted patents (https://investor.aligntech.com/index.php/news-releases/news-release-details/align-technology-files-six-patent-infringement-lawsuits).
• An appendix filed in a related Delaware action (Case 1:20-cv-01492, D.I. 5-13) lists the patents asserted in the "1647 Action," which includes *8,734,149 ("149 patent") among the patents carried forward in that case.
• The '149 patent was actively litigated in the 1647 action: 3Shape moved for summary judgment of invalidity under 35 U.S.C. § 112(1) and, alternatively, non-infringement of "the Asserted Claims of U.S. Patent Nos. 8,734,149 and 7,056,115" (Defendants' Opening Brief, D.I. 315, filed Feb. 19, 2020, Case 1:17-cv-01647-LPS). The court (Judge Leonard P. Stark) denied all five of 3Shape's dispositive motions, including the § 112 motion directed at the '149 and '115 patents, in a Memorandum Order dated October 8, 2020 (D.I. 425).
• The same October 8, 2020 opinion addressed § 101 patent-eligibility arguments against, among others, the '149 patent, and the court sided with Align that claim 13 of the '149 patent was directed to an improvement over prior indirect-bonding techniques rather than an abstract idea (Align Tech. v. 3Shape A/S, C.A. No. 17-1647-LPS (D. Del. Oct. 8, 2020)).
• Outcome: Align announced on February 7, 2022 that it "settled its longstanding patent infringement and antitrust litigation with 3Shape A/S which began in November of 2017," covering claims pending in the District of Delaware and the Eastern District of Texas and related PTAB petitions; the terms are confidential (https://investor.aligntech.com/news-releases/news-release-details/align-technology-announces-settlement-outstanding-litigation).

Related district court dockets that were part of the same global dispute include 1:17-cv-01646, 1:17-cv-01648, 1:17-cv-01649, 1:18-cv-00886, 1:18-cv-01949, 1:18-cv-01950, 1:19-cv-02098, and 1:20-cv-01492 (D. Del.). The '149 patent was specifically asserted in the 1647 action.

Important Caveats and Limitations

1. ITC (Section 337) investigations. Align's two ITC complaints of November 14, 2017 (resolved as Investigation Nos. 337-TA-1090, -1091, and later -1144) were part of the same campaign against 3Shape, and Align's press release grouped the '149 patent among the 26 asserted patents. I could not confirm from the sources retrieved whether U.S. 8,734,149 was specifically named in any of the ITC complaints/notices of investigation. Align lost all three ITC investigations (e.g., 3Shape's Nov. 18, 2020 announcement: https://www.3shape.com/en/press/2020/3shape-wins-once-again-in-the-itc-align-technology-vs-3shape). Treat any ITC link to the '149 patent as unverified.

2. PTAB / IPR proceedings. Numerous IPR petitions were filed between Align and 3Shape on various patents (e.g., IPR2020-00173, IPR2020-01087, IPR2020-01644, IPR2021-01323). I found no confirmed IPR petition specifically challenging U.S. 8,734,149. If an IPR was filed against the '149 patent, I did not locate it — do not assume one exists.

3. Google Patents' "family has litigation" flag. The Google Patents page for US8734149B2 shows a "First worldwide family litigation filed" link keyed to family ID 32868999 (via Darts-IP). This corroborates that litigation exists in the patent family, but the family-level flag is not patent-specific evidence and I could not open the underlying Darts-IP record.

4. Other possible duplicative enforcement. Because U.S. 8,734,149 is one member of a large continuation family (parent U.S. 7,056,115; siblings U.S. 8,496,473, 9,204,942, 9,433,479, 10,874,487, etc.), other suits could conceivably assert sibling members. I searched specifically for the number 8734149 and did not auto-expand to those siblings, per your instruction.

Bottom Line

The only litigation I can document asserting U.S. Patent No. 8,734,149 is:

Align Technology, Inc. v. 3Shape A/S, 3Shape Trios A/S & 3Shape Inc. — D. Del. Case No. 1:17-cv-01647-LPS-CJB, filed November 14, 2017, resolved by confidential settlement announced February 7, 2022. Within that case, 3Shape's § 112 and § 101 challenges to the '149 patent were rejected by the court on October 8, 2020, and the case did not reach trial on the '149 patent before settlement.

If you need confirmation about ITC investigations or any IPR specifically naming the '149 patent, that would require a direct check of the ITC EDIS docket and the PTAB Patent Trial & Appeal Board API/PatentCenter for the patent number — I could not verify those from the sources retrieved here.

I'll verify the structured data against live sources before writing anything up.

Let me dig specifically for any petition naming the '149 patent.

Let me run a couple more targeted checks on the 3Shape IPR family and known Align IPR dockets.

Proceedings overview

Zero AIA trial proceedings are on file for US 8,734,149. The structured "PTAB proceedings on file" block — sourced from the USPTO Open Data Portal and designated the canonical list for this task — returns no IPRs, PGRs, or CBMs. My independent web searches for a petition naming the '149 patent (including the obvious candidates, 3Shape and ClearCorrect, who have repeatedly petitioned against sibling Align patents) surfaced none. Count: 0 total — 0 active, 0 claims invalidated, 0 sustained, 0 settled, 0 institution denials.

The bottom-line defensive posture is unusual for this portfolio: there is no PTAB invalidity finding to lean on, but there is also no PTAB finding hardening the patent against you. The claims stand untested at the Board. The practical upside is that the patent expired on 2023-02-26 (20 years from the 2003-02-26 priority date; Google Patents lists "Anticipated expiration 2023-02-26" and legal status "Expired - Lifetime"), so it cannot now be asserted for ongoing conduct — only for past damages within the § 286 six-year lookback window, and only to the extent the statute of limitations has not run on those acts.

No proceedings to report

There is no proceeding number, petitioner, panel, institution decision, or Final Written Decision to describe, because none exists. I will not invent one. If your adversary represents that a PTAB decision invalidated or upheld claims of the '149 patent, that representation is not supported by the ODP record or by anything I could find in public sources.

Caveat on the negative finding: the ODP ingest may lag recent filings. However, the '149 patent expired in February 2023, so no new petition could be filed against it (IPR is limited to unexpired patents available for challenge under § 311(c)); any un-indexed proceeding would have to predate that expiration and would almost certainly have surfaced in the sources I checked. I rate the probability that an AIA proceeding exists and is merely un-indexed as low.

What actually happened to this patent is in district court, not the PTAB. That is the most useful signal for a defendant, so treat the following as the substantive "proceeding":

Align Technology, Inc. v. 3Shape A/S — C.A. No. 1:17-cv-01647 (D. Del.) (district court, not PTAB)

• Type: Patent infringement action (the closest thing to a validity challenge on this patent)
• The '149 patent was asserted by Align against 3Shape among an initial set of six patents, and remained among the patents "Current" after amended pleadings (Appendix A to D.I. 5-13 in the parallel 3Shape A/S et al. v. Align, No. 1:20-cv-01492 (D. Del.)). Source: Docket Alarm, Align v. 3Shape, D.I. 5-13
• Invalidity challenge: On 2020-02-19, 3Shape filed a motion for summary judgment of invalidity under 35 U.S.C. § 112(1), or in the alternative non-infringement, of the asserted claims of U.S. Patent Nos. 8,734,149 and 7,056,115 (the '149 patent's family member). 3Shape argued that under Align's own construction, "scaling" lacks written description, and that the asserted patents do not sufficiently describe or enable the full scope of the claimed template. Source: Docket Alarm, Align v. 3Shape, D.I. 315
• Disposition: I could not confirm the ruling on that summary-judgment motion from the sources available. Do not assume it was granted.
• Defensive value: This is the template of the attack that would have been brought at the PTAB had the patent been younger. The § 112 written-description/enablement theory aimed at "scaling" (claims 1–6 of the '149 patent recite scaling and a 5%–50% enlargement range) is the live vulnerability on the merits — and it is not subject to PTAB estoppel, because it was never raised at the Board.

Strategic summary

Claim status. No claim of US 8,734,149 has been canceled, confirmed, or even construed by the PTAB. All 21 claims — independent claims 1 and 13 and dependent claims 2–12 and 14–21 — are UNTESTED at the Board. For accuracy: the Google Patents "Cited By (38)" list includes decisions that cite the '149 as prior art or as family context, not decisions that adjudicate it. In particular, IPR2020-01642/01643 (3Shape v. Align) concerned U.S. 10,507,088; IPR2020-01644/01645 concerned U.S. 10,507,089; IPR2020-00222/00223 (3Shape v. Align) concerned U.S. 7,156,661; and IPR2016-00270 (ClearCorrect v. Align) concerned U.S. 6,699,037. None of those is the '149. Read those as evidence of Align's aggressive assertion posture and 3Shape/ClearCorrect's willingness to petition — but not as adjudications of this patent.

Estoppel landscape. Because there is no FWD against the '149 patent, § 315(e)(2) estoppel is a non-issue for anyone attacking these claims. Nothing was raised and nothing reasonably could have been raised at the Board. A defendant facing (or evaluating) a past-infringement demand on the '149 can run any § 102/§ 103 combination drawn from the printed prior art, plus § 112 written-description and enablement attacks, without any estoppel constraint. By contrast, the district-court record is where the narrowing history lives: 3Shape's § 112(1) "scaling" argument and Align's competing constructions are the materials to mine, and they are freely available.

Pattern signals. Align Technology is a serial patent owner and litigant — it has asserted 26+ patents against 3Shape and, per its own 10-Q, faced eight IPR petitions filed by ClearCorrect on April 10, 12, and 14, 2025, targeting a later generation of Align patents (e.g., IPR2025-00815/00816/00819 against '879, '217, '456, '090 series). The pattern is that Align patents of commercial significance do attract IPRs — but this one did not, which is consistent with its February 2023 expiration removing it from § 311(c) eligibility before the recent ClearCorrect petition wave. No defensive aggregator (Unified Patents, RPX, etc.) appears anywhere in the '149 patent's chain; the challenges that exist came from competitors (3Shape, ClearCorrect) with direct litigation incentives. Google Patents flags "Family has litigation" for family ID 32868999.

Recommended next steps

1. Do not expect a PTAB lifeline, and do not fear one. There is no FWD to cite, quote, or rely on. If you are drafting an invalidity position for a past-infringement demand, build it from § 112 written description/enablement directed at "scaling" and the 5%–50% range of claims 1–6 and 13–15 — the same theory 3Shape briefed at D.I. 315 in the Delaware action — and from § 102/§ 103 art of your own selection, unencumbered by § 315(e)(2).

2. Lead with expiration and the statute of limitations. The patent expired 2023-02-26. Any demand must be limited to past damages, and § 286 caps recovery at the six years preceding filing. Check the dates of the accused conduct against that window before spending anything on invalidity.

3. If your adversary asserts PTAB activity, demand the proceeding number. There is none on the ODP record. Do not accept a generalized claim that "the claims have been invalidated" or "the patent survived IPRs" — neither is true, and either would be a verifiable misstatement.

4. Verify anything I could not confirm. I could not determine the disposition of 3Shape's 2020-02-19 summary-judgment motion on the '149/'115 patents. If that ruling is outcome-determinative for you, pull the D. Del. docket for C.A. No. 1:17-cv-01647 (and 1:20-cv-01492) directly. USPTO PTAB records are searchable at the PTAB E2E / PTAB Center; Federal Circuit dispositions via CourtListener. No CAFC appeal of any '149 FWD exists because no FWD exists.

Sources consulted: USPTO ODP structured "PTAB proceedings on file" block (canonical, supplied in prompt); Google Patents US8734149B2; Align press release, Nov. 14, 2017; Docket Alarm, Align v. 3Shape D.I. 315 (2020-02-19); Docket Alarm, 3Shape v. Align, Appendix A (D.I. 5-13); IPR2020-01642 track docket; IPR2016-00270 FWD (6,699,037); Align 10-Q excerpt re: ClearCorrect's April 2025 IPR filings.

I'll start by pulling the assignment and litigation records from the primary sources before writing anything.

Let me try to locate the actual assignment records and any litigation/enforcement history.

Let me try to reach the USPTO assignment records directly and check Align's corporate status.

Assignment & Ownership Analysis — US 8,734,149 B2

"Systems and methods for fabricating a dental template" · Align Technology, Inc. · App. 13/620,209 · Issued 2014-05-27 · Anticipated expiry 2023-02-26

Access limitation up front. I was unable to retrieve live reel/frame entries from USPTO Assignment Center (https://assignmentcenter.uspto.gov/) or the legacy Assignments-on-the-Web index in this session — the queries returned no assignment-record payload. Everything below that concerns reel/frame numbers is therefore labeled as unverified. I have not invented reel/frame numbers, correspondents, or execution/recording dates to fill the gap. The ownership conclusion rests on (a) the Google Patents legal-events table for this patent, which contains no assignment conveyances, and (b) corroborating litigation and corporate evidence that does verify. Treat the assignment timeline section as incomplete pending a direct Assignment Center lookup.

Inventors

All five are named on the face of US 8,734,149 (per the granted patent PDF, patentimages.storage.googleapis.com/.../US8734149.pdf, field (75)) and were Align Technology personnel at the 2003-02-26 priority date:

Departure pattern: two of the five (Abolfathi, Wen) moved on from Align years after the 2003 filing. This is NOT a fire-sale precursor here. The tell for a pre-sale exodus is inventors leaving within 12 months of filing together with a change of assignee — neither applies. Align retained and later enforced the patent (see below). Flagging it as a curiosity, not a signal.

Original assignee

Align Technology, Inc., San Jose, CA (per field (73) of the patent and the Google Patents "Original Assignee" record).

• Product embodiment: Yes, substantially. Align is the Invisalign maker; the asserted technology family covers computer-designed dental templates used for indirect bracket placement and aligner fabrication — core to Align's manufacturing workflow.
• Line of business: Clear-aligner orthodontics, intraoral scanning (iTero), and digital treatment planning. Publicly traded (NASDAQ: ALGN).
• Current status: Operating. No bankruptcy, insolvency, or dissolution event surfaced. Note the entity's own filings show it has moved its principal address over time (San Jose 2560/2820 Orchard Parkway historically; a 2025 ITC filing describes the complainant as "Align Technology, Inc. of Tempe, Arizona") — an ordinary corporate relocation, not a conveyance.

Assignment timeline

Result: no reel/frame entries confirmed. The Google Patents legal-events table for US 8,734,149 records only prosecution events — 2012-09-14 application filed by Align Technology, 2013-04-18 publication of US 2013/0095448 A1, 2014-05-27 grant, plus priority links to the child continuations (US 9,204,942; US 9,433,479; US 10,874,487; US 2020/0129271) — and no assignment, security-interest, merger, or name-change conveyance appears anywhere in that event stream. "Current Assignee" and "Original Assignee" are the same entity, Align Technology Inc.

Accordingly, the honest reconstruction is:

• Presumed, unverified — inventor → Align Technology. Because the patent issued with Align as assignee under 35 U.S.C. § 152, an assignment (or obligation to assign) from the five inventors almost certainly exists and was likely recorded in the 2003–2004 window. I could not confirm the reel/frame, execution date, recording date, or correspondent for it, and I will not guess. The prosecution address of record visible in related Align filings is "Align Technology, Inc. / WSGR, 650 Page Mill Road, Palo Alto, CA 94304" (Wilson Sonsini Goodrich & Rosati) — a plausible but unconfirmed correspondent for any Align recording.
• No post-issuance assignments found. No transfer to any LLC, NPE, aggregator, or affiliate surfaced in the patent's legal events.

Action to close the gap: query https://assignmentcenter.uspto.gov/ by patent number 8734149 (and by assignor name "Phan" / assignee "Align Technology") to obtain the actual reel/frame, correspondent, and dates. Until that is done, this section is a no-records-surfaced finding, not a verified no-records finding.

Timeline diagram

timeline
    title Ownership of US 8734149
    2003 : Priority application filed
         : Assignee of record is Align Technology
    2004 : Parent patented as 7056115
    2005 : Continuation filed as 11297129
    2012 : Continuation filed as 13620209
    2014 : Patent issues to Align Technology
    2017 : Align sues 3Shape in D Del
    2023 : Patent term expires

NPE / troll-pattern signals

Corroborating enforcement evidence: Align's 2017-11-14 press release expressly lists U.S. Patent No. 8,734,149 — "Systems and methods for fabricating a dental template" among 26 patents asserted against 3Shape; the D.Del. amended-pleading appendix in 3Shape A/S v. Align Technology (1:20-cv-01492, D.I. 5-13) confirms the '149 patent as a currently asserted patent in the 1647 action. Claim terms from the '149 patent ("scale/scaling/scaled digital teeth," "virtual object(s)") were construed in Align Tech., Inc. v. 3Shape, C.A. No. 17-1647-LPS-CJB (D. Del. Jun. 6, 2019).

Verdict

Operating-company assertion.

Align Technology, Inc. — the original and (absent contrary evidence) current assignee of record — ships Invisalign clear aligners and the digital dental-template workflow that the claims cover, and it enforced US 8,734,149 in its own name against a direct competitor, 3Shape, in Align Technology, Inc. v. 3Shape A/S, C.A. 1:17-cv-01647 (D. Del., filed 2017). No assignment, security interest, or name change appears in the patent's legal events; the assignee at grant and the assignee now are the same operating entity, and the Stanford NPE Litigation Database classifies this patent's asserter as a "Product company." Every one of the eight NPE signals is absent on the evidence available. The one genuine limitation is procedural: I could not pull the underlying Assignment Center reel/frame entries, so the inventor→Align assignment (almost certain, given issuance under § 152) remains unreconstructed — that gap does not change the verdict but should be closed with a direct lookup.

Verify at: USPTO Assignment Center — search patent number 8734149. Cross-check the patent's legal events at Google Patents US8734149B2 and the asserter classification at Stanford NPE Litigation Database.

I'll research the prior art citations for US 8,734,149. Let me search the USPTO and patent databases.

I have the FPO reference list started. Let me retrieve the complete citation lists from multiple databases.

I was able to verify the patent and retrieve a substantial portion of its citation record before hitting the tool limit. Below is the prior-art analysis based on what I could confirm. I must flag up front that my source page (Google Patents) truncated the citations table partway through, so this covers approximately the first ~50 of the 98 listed references plus the ~40 "US Patent References" reproduced on the face of the patent — I did not retrieve the complete 98-item list.

Prior Art Analysis — U.S. Patent No. 8,734,149

A. USPTO / Database Verification of the Patent Number

Sources: https://patents.google.com/patent/US8734149/en ; https://www.freepatentsonline.com/8734149.html ; https://uspto.report/patent/grant/8734149

B. Critical Threshold Caveat Before Reading the Tables

Because every claim of the '149 patent is entitled to the 2003-02-26 priority date, a reference can only anticipate under §102 if it:

• issued/published before 2003-02-26 (§102(a)/(b)), or
• was filed before 2003-02-26 and later published (§102(e)).

Several references listed on the patent's face (e.g., Sachdeva US 6,905,337, US 6,918,761; Cleary US 2005/0074716; Wen US 7,578,673) carry post-2003 publication dates and are therefore only citable as §102(e) art if their filings predate 2003-02-26 — I could not verify those filing dates from the retrieved sources, so I flag them as unconfirmed for §102(e) purposes. In addition, members of the '149 patent's own family (US 7,056,115; US 2004/0166462; US 2006/0084030 — all Phan et al., same disclosure) and the commonly-owned Wen US 7,578,673 are not properly §102 prior art against '149 (same priority date / same inventive entity / common ownership under §103(c)).

C. Examiner-Cited Patent References — Tiered by Relevance

TIER 1 — Most relevant to the claimed subject matter (digitized teeth → virtual bracket → fabricated template)

TIER 2 — Relevant to specific dependent limitations (removal of structure, gingival/proximal trimming, connecting members)

TIER 3 — Background / historical orthodontic art (cited for the general state of the art; unlikely to anticipate any claim individually under §102, though collectively relevant under §103)

D. Overall Assessment — Strongest §102 Candidates

1. Cleary, US 6,123,544 (2000) — the single strongest true §102(b) reference for the "template/apparatus that locates an orthodontic object on the tooth" concept, but it likely does not disclose the scale + superimpose limitations that distinguish claim 1.
2. Sachdeva, US 6,554,613 (grant 2003-04-29) — the most on-point conceptual reference (virtual appliance on a digital model → fabricated placement template), but its §102(e) availability depends on a pre-2003-02-26 filing date I could not verify.
3. Sondhi, US 5,971,754 (1999) and Kyung, US 6,296,481 (2001) — solid §102(b) art for indirect-bonding-by-template and bracket positioning, respectively.
4. Rubbert, US 6,648,640 / US 2002/0015934 — strongest art for the digitizing/intra-oral-scanning element, but silent on template fabrication with scaling.

Bottom line on anticipation: No single retrieved reference appears to disclose all elements of independent claim 1 or claim 13 — in particular the combination of (a) scaling the digital tooth model larger, (b) superimposing the scaled model over the original, and (c) outputting fabrication data from that superimposed construct. The Sachdeva and Cleary references are best characterized as strong §103 (obviousness) art against claims 1/13 and their trimming/connecting-member dependents (claims 5, 8–10, 18), rather than clean §102 anticipation. The "Automobile headlight" citation (US 5,971,574) is a clear anomaly with no bearing on any claim.

E. Limitations of This Analysis (stated per operating rules)

• Incomplete citation set. The authoritative Google Patents text truncated the citations table after US 5,055,039, and I retrieved roughly half of the 98 references. The remaining ~50 citations (including several 1990s CAD/scanning patents and the extensive non-patent-literature list of Altschuler, Andrews, Baumrind, Begole, etc.) were not verified.
• Filing dates not verified for the post-2003-grant references (Sachdeva '337/'761, Cleary '716, Wen '673, Kopelman '670), which controls whether they are even available as §102(e) art. I did not confirm these and do not assert them.
• I did not locate a PTAB/IPR final written decision construing the '149 claims; determine whether the examiner actually relied on any of these references for a rejection (the lists show what was cited/considered, not what was applied); or retrieve the full non-patent-literature citations.

If you want, I can drill into the un-retrieved half of the citation list (particularly the 1990s scanning/CAD references and the NPL) or verify the filing dates needed for §102(e) treatment of the Sachdeva/Cleary publications.

I'll ground this obviousness analysis in the actual prior-art references, then run targeted searches on the key ones so I can cite them precisely.

Obviousness Analysis — U.S. Patent No. 8,734,149 B2

Under 35 U.S.C. § 103 | Effective filing/priority date: February 26, 2003

0. Scope, sources, and cross-checks against the earlier sections

This analysis builds on the previously generated Patent summary and Litigation summary and does not repeat their content. Facts carried forward: priority date 2003‑02‑26; 21 claims with independent claims 1 and 13; scaling limitation 5–50% larger (claims 6, 15); "virtual object" may be a 3D model of a physical bracket (claims 7, 16); articulated, flexibly-linked tooth-fitting members (claims 18–19).

Two cross-reference flags:

1. The Patent summary noted that some third‑party briefs attribute the "3D virtual bracket" limitation to claim 16, whereas the granted set recites it in claim 7. I follow the granted claim text throughout and treat claims 7/16 as parallel limitations in the two independent claim families.
2. The earlier sections correctly note no §103 adjudication occurred on the '149 patent — the D. Del. court's Oct. 8, 2020 order denied 3Shape's §112(1) and §101 motions, and the case settled before trial. The analysis below is therefore prospective (what a challenger could argue in an IPR or litigation), not a summary of any ruling.

Statutory framework. Because application 13/620,209 was filed Sept. 14, 2012 — before the March 16, 2013 AIA cutover — and claims benefit of a 2003 application, pre‑AIA §102/§103 applies (see the PTAB petitions in this art that plead "102(a), (b), (e)"). Prior art must therefore predate the invention/priority date, and I confine the analysis to references that qualify.

Sources used (all cited URLs verified in this session): the Google Patents "Citations (98)" list (which is truncated in the supplied text at US 5,055,039, so only references down to that point are affirmatively in the record here) plus targeted retrievals of the five highest‑value references.

1. Person of ordinary skill in the art (POSITA)

A POSITA in early 2003 would have had a degree in dentistry/orthodontics or in mechanical/biomedical engineering, plus 2–4 years' experience in orthodontic appliance design and digital dental CAD/CAM — including 3D intra‑oral scanning, digital tooth-model manipulation, indirect‑bonding (IDB) tray fabrication, and rapid prototyping (SLA, FDM, 3D printing). Critically, this person would have been intimately familiar with the 1950s–1990s indirect-bonding literature (Kesling, Scheu‑Dental, Creekmore, Hickham) and the 1980s–1990s dental CAD/CAM literature (Duret, Rekow, Moermann, Brandestini). The invention sits precisely at the seam between those two bodies of art.

2. The prior‑art landscape (grouped by function)

Group A — Digital dental modeling, scaling, and superimposition

Group B — Indirect bonding trays, transfer templates, and bracket‑placement guides

Group C — Rapid prototyping / automated fabrication of dental articles

• Duret (NC machine tool from CAD data, above); Rekow (machine‑tool command generation); and the stereolithography art that was already commercial by the mid‑1990s. The '149 specification itself names the SLA‑250/50 from 3D Systems and pressure/vacuum molding (BIOSTAR; Tru‑Tain 0.03″ material) as conventional — an implicit admission that the fabrication hardware is old.

Not prior art (flag)

• The 38 "Cited By" documents mostly post‑date 2003 (e.g., US 9,707,056, American Orthodontics, 2013 priority — https://patentimages.storage.googleapis.com/78/f4/38/adfad08f6339ad/US9707056.pdf) and are useful only as evidence of the art's trajectory, not as §102/§103 art.
• Align's own 2003 family (US 2004/0166463, US 7,600,999) shares the Feb 26, 2003 priority; as Align‑owned §102(e) material it is the kind of art excluded from a §103 combination by pre‑AIA §103(c) absent a §102(b) qualification. The practical takeaway: a viable challenge must be built from third‑party art (Rekow, Duret, Creekmore, Hickham, Scheu‑Dental, Kesling, Andrews), all of which are third‑party and comfortably pre‑2003.
• US 10,052,177 (Ormco) carries a 2002‑05‑28 priority and therefore might qualify as §102(e) art if its underlying application was filed before Feb. 26, 2003 — worth verifying, but I did not confirm that here.

3. Claim 1 — element‑by‑element mapping and primary combinations

Claim 1 requires: (a) a computer with storage media & program; (b) receive a digital tooth model; (c) scale it so the scaled model is larger; (d) add a virtual object to the digital or scaled model; (e) superimpose the scaled model over the digital model; (f) output fabrication data for a template that locates the object.

Primary Combination I — Rekow '281 + Duret '720 + Creekmore '118

Why the combination is proper (KSR rationales):

• (A) Known elements, known methods, predictable result. Each step (scan → model → scale → superpose → machine) was a routine CAD/CAM operation by 1989 (Rekow), and the bracket‑positioning template was itself old (Creekmore 1989, Scheu 1976). Combining them yields nothing more than the expected result: a digitally‑derived guide that places a bracket where the clinician specified.
• (C) Known technique improving a similar device in the same way. The '149 specification itself frames the problem — difficult access to optimal bonding surfaces, moisture contamination, chair‑time — and states the solution is to do the placement "virtually and the placement of the brackets … using a template device that is a removable guide." That is exactly the Rekow/Duret workflow applied to Creekmore's template.
• Same field, common problem, finite predictable solutions. All references are in dental restoration/orthodontic appliance fabrication; the motivation is supplied by the well‑recognized need for precise, geometry‑independent bracket placement (stated in Creekmore and Scheu) and the well‑known benefits of digital modeling (Duret, Rekow).

Secondary/alternative combinations

• Combination II — Rekow '281 + Scheu '478 + Hickham '554. Rekow supplies the digital scaling/superposition; Scheu supplies "position the bracket on the model → make a negative transfer mold → transfer to the patient"; Hickham supplies the flexible‑tray‑plus‑rigid‑over‑tray architecture that maps onto claim 18/19.
• Combination III — Duret '720 + Creekmore '118 + a rapid‑prototyping reference. If one treats Rekow's "generic form" as a prosthesis‑design disclosure, Duret alone teaches a pre‑programmed computer storing stored, resizable tooth geometry and NC fabrication, so the "scale" step can be sourced from Duret's stored‑standard‑tooth best‑fit routine (scaling to the site) while the "superimpose" step comes from the Minnesota family's express "superimposes an ideal geometry" language.

Strengthening point from the earlier summary: In the D. Del. litigation the court declined to construe "scale/scaling/scaled" and rejected 3Shape's attempt to limit it to "isotropically," and also held the intrinsic record does not exclude "offsetting." A broad reading of "scaling" (including offsetting a surface) is helpful to an obviousness challenge, because Rekow's "scale generic form" and "alter the generic coordinates" steps and Duret's best‑fit alteration both then read directly onto the limitation. Conversely, if a challenger were forced into a narrow isotropic uniform enlargement reading, the mapping is still met by Rekow's explicit "scaling factor" disclosure.

4. Claim 13 (multi‑tooth / arch system)

Claim 13 is the same architecture over at least two teeth. Mapping follows Combination I with the multi‑tooth adaptations that are expressly in the art:

• Receive digitized teeth of ≥2 teeth: Rekow '281 teaches scanning an entire dental arch/cast; Duret scans the site "and its relationship to adjoining structures."
• Scale the digitized teeth (5–50%, claim 15): Rekow's "scale generic form" applied per‑tooth or to the arch.
• Add virtual objects: Scheu '478 explicitly positions brackets on multiple model teeth in the ideal arch; Creekmore '118 aligns each tooth to an "optimum arch form."
• Superimpose scaled digital teeth over the digitized teeth: Rekow family "superimposes an ideal geometry on the computer‑based model"; the "interference check between adjacent objects" (FIGS. 14A/14B) is directly relevant to the arch case.
• Output fabrication data for a template locating objects on the teeth: Scheu's negative mold / Hickham's trays / Creekmore's template.

The arch‑level claims raise no additional structural difficulty; indeed, applying Rekow's per‑object scaling/superposition to a whole scanned arch is the natural extension the reference itself contemplates ("interference check between adjacent objects").

5. Dependent claims

6. The motivation‑to‑combine narrative (articulated for the record)

1. Common field and common problem. Every reference addresses the same problem: getting a bracket onto a specific tooth surface at a pre‑determined, ideal position (tip/torque/rotation/in‑out/height) with minimal chair time and without dependence on adjacent‑tooth geometry. Creekmore and Scheu state this explicitly.
2. The known digital solution. Duret and Rekow had, by the early 1990s, made scan → digital model → manipulate (including scale, superimpose, alter) → machine‑fabricate a routine workflow in dentistry. Rekow in particular frames the manipulation set (scale + superimpose + eliminate interferences) in a flow chart that is nearly isomorphic to the '149 claim 1 (and claim 3B "creates cavity of original inside scaled arch") sequence.
3. The predictable substitution. Once the tooth (or arch) exists as a manipulable digital object, using it to define a physical guide/template — precisely what Creekmore, Scheu, and Hickham did with plaster models — is a substitution of the model medium (physical → digital) using a known technique (CAD/CAM) to improve a known device (the placement template), which KSR (rationale C) holds obvious.
4. Design incentives and finite solutions. The stated deficiencies of the purely‑physical IDB workflow (bracket dislodgement on tray removal; obscured tooth surfaces; moisture contamination) supply a design need that the digital approach was understood to meet. The number of ways to make a tooth‑fitting shell with bracket‑locating apertures is small, and scaling‑plus‑superposition was the disclosed CAD op for doing it.
5. No criticality / no unexpected result. Nothing in the '149 specification attributes a non‑obvious technical effect to the 5–50% range, to the superimposition order, or to the "either/or" placement of the virtual object; the alleged advantages (precision, ease, depth guidance) are the inherent and expected benefits of any accurate placement guide.

7. Where a §103 challenge is weaker, and how a patentee would respond

A rigorous analyst must identify the soft spots:

• The "scale‑then‑superimpose‑then‑output template data" architecture is a specific sequence for a specific purpose. Rekow's scaling/superposition is directed to fabricating a restoration (a crown/prosthesis) by milling — not to producing a bracket‑positioning template with a bracket footprint opening. A patentee would argue the references are non‑analogous in purpose and that the specific cavitying of the original inside the scaled shell to define a bracket‑guide aperture is not disclosed. The response: Rekow's express "over"‑superimposition of a scaled generic form onto a scanned model, followed by clipping/eliminating interferences and generating machine instructions, supplies exactly the geometric operation; the destination of the resulting geometry (a guide vs. a restoration) is an application choice with predictable results.
• No single reference discloses everything. The challenge depends on a three‑ to four‑reference combination, so the articulated motivation (Section 6) is essential and must be supported by expert testimony.
• "Virtual object" and "scaling" breadth. The D. Del. claim construction helps the challenger (no isotropic limitation; "virtual object" not limited to an orthodontic appliance), but a patentee could still argue that the art's objects are physical and the claim requires the object be added to the digital model at a predetermined location/orientation — the conversion of Creekmore's physical guide into a digital object is the point most open to dispute.
• Secondary considerations. Align achieved commercial success with its IDB/template products; a patentee would offer this (and possibly industry praise/licensing) as objective evidence of non‑obviousness. The challenger must attack nexus (does the success flow from the claimed subject matter or from Align's aligner ecosystem, brand, and manufacturing scale?) — an important but frequently surmountable hurdle.
• Aligned with the litigation record: the D. Del. court denied 3Shape's §112(1)/§101 motions. That shows the claims can survive those challenges, but it is no evidence of §103 validity — no obviousness ruling issued before the February 7, 2022 settlement.

8. Bottom line

A well‑supported prima facie case of obviousness exists for independent claims 1 and 13 and most dependents, built from third‑party, pre‑2003 art:

• Primary: US 5,027,281 (Rekow) in view of US 4,663,720 (Duret), further in view of US 4,812,118 (Creekmore) — supplying, respectively, (i) digital dental modeling with an express scale‑generic‑form / superimpose / eliminate‑interferences method, (ii) stored, resizable standard‑tooth geometry with operator‑selected best‑fit and computer‑controlled fabrication, and (iii) a bracket‑positioning template that controls tip, torque, rotation, height, and in‑out independent of arch geometry.
• Secondary: US 3,949,478 (Scheu‑Dental) and US 4,501,554 (Hickham) reinforce the model‑position‑bracket‑then‑transfer workflow and directly map onto claims 18–19 (articulated tooth‑fitting members; thermoformed elastomeric overlay).

The strongest single evidentiary anchor is Rekow '281's disclosed scaling/superimposition method (with "scale generic form" and FIGS. 13A/13B scaling‑factor drawings), reinforced by the Minnesota family's express "superimposes an ideal geometry on the computer‑based model" language — because those disclosures track the two limitations most likely to be argued as the point of novelty (scale and superimpose).

Residual uncertainty to verify before relying on this analysis: (1) the full text of the remaining 60+ cited references below US 5,055,039, which I could not see because the supplied citation list is truncated; (2) whether US 10,052,177 (Ormco, 2002 priority) qualifies as §102(e) art; and (3) whether any of Align's own family members qualify under §102(b) (which would remove them from the §103(c) common‑ownership exclusion). These do not change the strength of the third‑party combinations above but would broaden the set of available references.