US 9769477

I'll search for the specific patent number and related docket information.

Now let me search the CAFC 2026 dockets and the IPR certificate status for this specific patent.

Let me specifically check for 2026 Court of Appeals for the Federal Circuit docket activity on this patent.

US Patent 9,769,477 — Analyst Summary

Scope note: I searched for the specific identifier 9769477 / US 9,769,477 B2. I did not substitute similar numbers (e.g., 7,196,477; 9,769,478). Where I could not verify something authoritatively, I flag it explicitly. One search returned the full Google Patents text of US9769477B2, which I treat as the authoritative document; everything else is flagged as secondary.

1. Bibliographic Data

Priority chain (continuation line, per the patent's own Cross‑Reference section): 60/268,394 (2001) → 10/076,013 (now US 7,386,046) → 12/123,081 (now US 8,073,047) → 13/154,239 (now US 8,553,759) → 14/033,245 (now US 8,934,535) → 14/134,933 (now US 8,929,442) → 14/577,286 (abandoned) → 14/733,565 → 14/876,276. So the '477 is a late continuation in the large "Fallon patent" family sharing a 2001‑02‑13 priority date.

2. Abstract (verbatim from the patent)

"A system and method including one or more asymmetric data compression algorithms is disclosed. A first asymmetric data compression algorithm of the one or more asymmetric data compression algorithms compresses data at a higher data compression rate than a second asymmetric data compression algorithm of the one or more asymmetric data compression algorithms. The system and method also include one or more processors that determine one or more data parameters from one or more data blocks and select one or more asymmetric data compression algorithms from among the one or more asymmetric data compression algorithms based upon, at least in part, the determined one or more data parameters."

3. Plain‑Language Overview of the Independent Claims

Important limitation on what I can verify: the Google Patents text I retrieved contains the abstract, specification, and description, but not a verbatim claim set. The only claim text I can ground with a citation is independent claim 1, which is quoted in the District of Delaware opinions (e.g., Realtime Adaptive Streaming v. Netflix, C.A. No. 17‑1692, and the parallel Haivision opinion), citing '477 patent, col. 20:57–21:13:

"1. A system, comprising: a plurality of different asymmetric data compression encoders, wherein each asymmetric data compression encoder of the plurality of different asymmetric data compression encoders is configured to utilize one or more data compression algorithms, and wherein a first asymmetric data compression encoder of the plurality of different asymmetric data compression encoders is configured to compress data blocks containing video or image data at a higher data compression rate than a second asymmetric data compression encoder of the plurality of different asymmetric data compression encoders; and one or more compressors configured to: determine one or more data parameters, at least one of the determined one or more data parameters relating to a throughput of a communications channel measured in bits per second; and select one or more asymmetric data compression encoders from among the plurality of different asymmetric data compression encoders based upon, at least in part, the determined one or more data parameters."

Claim 1 in plain language: A system holds a set of different asymmetric compression encoders (i.e., encoders where encode-time and decode-time differ significantly, e.g., dictionary/Lempel‑Ziv-style schemes). At least one of them is faster at compressing video/image data than another. A "compressor" (processor) measures one or more data parameters of the incoming data blocks — and at least one measured parameter must be the throughput of a communications channel, expressed in bits per second — and then picks which asymmetric encoder(s) to use based at least in part on that measurement. The point is adaptive choice among asymmetric codecs driven by measured channel bandwidth.

On the other independent claims: The record shows the patent has 29 claims total (they are numbered 1–29 in the IPR papers), and the claim‑number ranges challenged across the various IPRs divide cleanly into 1–6, 9–14, 20–22, 25–27 (IPR2018‑01187) and 7, 8, 15–19, 23, 24, 28–29 (IPR2018‑01630). Dependent claims reference "descriptor" fields, resolution, and data‑transmission‑rate selection criteria (from the IPR2018‑01630 ground analysis). I cannot, from a source I can cite, enumerate and paraphrase each additional independent claim with confidence. I am flagging this rather than reconstructing claim text from memory.

4. Post‑Grant Status — The Claims Were Cancelled (secondary sources; treat with caution)

This is the single most important fact about this patent today:

• IPR2018‑01187 (Netflix, Inc.; Comcast joined as petitioner): Final Written Decision of Jan. 30, 2020 held claims 1–6, 9–14, 20–22, and 25–27 unpatentable under 35 U.S.C. § 318(a). (Source: PTAB Final Written Decision PDF, docketalarm copy — I consider this well‑corroborated.)
• IPR2018‑01630 (Netflix): challenged claims 7, 8, 15–19, 23, 24, 28–29 — grounds built on Imai (JP H11331305) in view of Pauls (EP0905939A2), plus Dawson (US 5,553,160) and Lai (US 6,407,680) for dependent claims. Google Patents' family page labels this proceeding with a Final Written Decision. (Source: third‑party IPR summary site — moderate confidence.)
• IPR2019‑01109, IPR2019‑00786, IPR2018‑01413 (settlement), IPR2019‑01035 (Adverse Judgment) appear on the Google Patents family/litigation list for this patent.
• A complaint‑analysis source reports: "An associated Inter Partes Review Certificate (US 9,769,477 K1) indicates that claims 1‑29 of the patent have been cancelled."

Net effect: between IPR2018‑01187 (1–6, 9–14, 20–22, 25–27) and IPR2018‑01630 (7, 8, 15–19, 23, 24, 28–29), the full claim set 1–29 has been held unpatentable/cancelled, consistent with the reported IPR certificate. This is why the Google Patents record shows the patent as Expired – Fee Related with an anticipated expiration transcribed as 2022‑02‑13, and why at least one later complaint analysis flagged a "procedural viability" issue for asserting cancelled claims. Caveat: I could not open the USPTO IPR certificate itself; the "US 9,769,477 K1, claims 1‑29 cancelled" statement rests on a secondary source.

5. Litigation Footprint (Google Patents family/litigation data)

The '477 patent was asserted very broadly by Realtime Adaptive Streaming LLC:

• District courts: N.D. Cal./C.D. Cal. (2:17‑cv‑07611; 2:18‑cv‑03629 v. Google/YouTube; 2:18‑cv‑09344 v. Adobe; 8:18‑cv‑00942 v. Cox; 2:19‑cv‑06361); D. Del. (1:17‑cv‑01519, ‑01520, ‑01692, ‑01693); D. Colo. (1:17‑cv‑02692, ‑02869; 1:18‑cv‑00927, ‑01046, ‑01048, ‑01173 v. AMD, ‑01175 v. Intel, ‑01177 v. Mitel, ‑01345 v. Charter, ‑01446 v. Comcast); E.D. Tex. (6:17‑cv‑00549 v. Amazon; 6:17‑cv‑00591; 6:18‑cv‑00215 v. LG); D. Mass. (1:18‑cv‑10355).
• Representative accused technology: AMD's Video Coding Engine and its use of H.264/Scalable Video Coding to switch between CAVLC and CABAC based on bitrate/resolution (per the AMD complaint analysis).
• Parallel § 101 outcomes: the related patents in the same family (notably '535, '046, '907) were held patent‑ineligible in the Google (C.D. Cal., Oct. 2018) and Netflix (D. Del., Dec. 2018) decisions, which later served as "red flags" in fee litigation. Note: the Delaware magistrate recommended dismissal as to the '477 claim 1 as well, but Realtime voluntarily dismissed before the district judge ruled, so I have no final § 101 merits holding specifically on the '477 claims.

6. CAFC 2026 Dockets — Searched, No 2026 Activity Found for This Patent

I searched the Federal Circuit–related records for US 9,769,477 and for Realtime Adaptive Streaming's appeals. Results:

• No 2026 Court of Appeals for the Federal Circuit docket naming US 9,769,477 appeared in any search result. I could not directly query PACER/CM‑ECF or the CAFC docket system, so I qualify this: no evidence found rather than definitively none exists. This is a real limitation of the search, not a positive finding.
• The CAFC appeals associated with this patent family per the Google Patents family/litigation data are: 21‑1484, 21‑1485, 21‑1519, and 21‑2268 — all filed in 2021, i.e., not 2026 dockets:
  • 21‑1484 — Realtime Adaptive Streaming LLC v. Netflix, Inc. (panel: Newman, Reyna, Chen; Chen writing). Affirmed a § 285 / inherent‑powers attorneys' fee award against Realtime, based on bad‑faith forum shopping (Delaware dismissal → C.D. Cal. refiling). (JD Supra case summary; RPX Insight lists 21‑1485 as Realtime Adaptive Streaming v. Netflix, Inc..)
  • 21‑2268 — Realtime Adaptive Streaming LLC v. Sling TV, L.L.C. (D. Colo. § 101 summary judgment affirmed per Rule 36, May 11, 2023).
  • 23‑1035 — Realtime Adaptive Streaming LLC v. Sling TV, L.L.C. (the later § 285 fee appeal; Fed. Cir. vacated and remanded Aug. 23, 2024).
• Note that these appeals concern the '610 and '535 patents, not a merits appeal of the '477 patent's cancelled claims. The 2022 decision Realtime Adaptive Streaming LLC v. Netflix, Inc., 41 F.4th 1372 (Fed. Cir. 2022) (holding IPR § 315(b) time‑bar based non‑institution decisions non‑appealable) is part of the same litigation web.

Conclusion on the docket question: For a 2026 CAFC docket specifically tied to 9,769,477, I have no authoritative record. Given that all 29 claims are reported cancelled and the patent is listed as expired for fee non‑payment, a 2026 merits appeal of the '477 claims would be unusual — but I cannot rule it out from the sources available to me.

7. Uncertainty / Confidence Summary

Bottom line: US 9,769,477 ("Video data compression systems," Fallon & McErlain, Realtime Adaptive Streaming LLC) is a 2015‑filed continuation claiming 2001 priority that covers selecting among multiple different asymmetric video/image compression encoders based at least in part on a measured parameter relating to communications‑channel throughput in bits per second. It was widely asserted in the 2017–2019 Realtime Adaptive Streaming campaign, was heavily IPR'd, and its entire 1–29 claim set is reported as cancelled, with the patent listed as Expired – Fee Related. I found no 2026 Federal Circuit docket for this patent; the CAFC appeals tied to this family (21‑1484, 21‑1485, 21‑1519, 21‑2268, 23‑1035) date from 2021–2024 and concern related patents and fee awards rather than the '477 claims.

I'll research litigation involving US patent 9769477. Let me search multiple sources.

Let me gather more detail on the specific cases, outcomes, and PTAB proceedings.

Litigation Involving U.S. Patent No. 9,769,477

Patent identification

The '477 patent is one of the "Fallon patents" (a continuation family that also includes U.S. 7,386,046; 8,934,535; 9,762,907; 9,578,298; 8,929,442; 8,867,610; 8,634,462/RE46,777). Representative claim 1 recites a system with "a plurality of different asymmetric data compression encoders," where one encoder compresses video/image data at a higher rate than another, and processor(s) that determine a data parameter "relating to a throughput of a communications channel measured in bits per second" and select encoder(s) based on it.

I found extensive, well-documented litigation. Note: I have solid evidence of filing and of post-grant outcomes, but the specific final disposition of each district-court case is not fully documented in the sources retrieved — I flag those gaps below rather than guess.

1. District court litigation

The '477 patent was asserted by Realtime Adaptive Streaming LLC against a very large set of defendants. The Google IPR petition (IPR2019-01035) expressly lists the cases in which "the '477 patent has been asserted," and the Google Patents litigation page (authoritative text) lists the following:

¹ The Netflix action was filed Nov. 21, 2017 (per the Delaware magistrate judge's opinion); it asserted the '477 patent along with the '535, '907, '046, '462, and '298 patents.

Widely reported outcomes/status for the district-court campaign:

• MDL denied. Realtime moved to consolidate its cases under 28 U.S.C. § 1407. The Judicial Panel on Multidistrict Litigation denied centralization in In re Realtime Adaptive Streaming LLC Patent Litig., 326 F. Supp. 3d 1374 (J.P.M.L. 2018). The '477 patent was one of the eight patents named in that MDL motion.
• Netflix — Delaware: The magistrate judge recommended granting-in-part/denying-in-part Netflix's motion to dismiss (Dec. 12, 2018). Realtime then voluntarily dismissed the Delaware action rather than face an adverse eligibility ruling, and refiled in the Central District of California.
• Netflix — California: The district court ultimately sanctioned Realtime and awarded Netflix more than $400,000 in attorneys' fees for "blatant gamesmanship"/impermissible forum shopping (see appeal below).
• Other defendants: Many actions were stayed pending the PTAB inter partes reviews (e.g., the AMD case bears the docket flag "STAYED"). The Brightcove case was dismissed by joint motion (Oct. 31, 2018: plaintiff's claims with prejudice, defendant's counterclaims without prejudice), and the Sony case was dismissed by joint motion (Nov. 1, 2018) — however, I could not confirm from the retrieved sources whether the '477 patent (as opposed to other asserted patents) was the subject of those specific dismissals. I flag that uncertainty rather than assert it.

Critical overarching fact: The Intellectual Property (Google) analysis of the AMD complaint states that an Inter Partes Review Certificate, US 9,769,477 K1, indicates that claims 1–29 of the '477 patent have been cancelled. If all 29 claims were cancelled, the '477 patent's infringement claims would have become moot across these district-court actions. I did not retrieve a source stating the final disposition of each remaining case individually.

2. PTAB (Patent Trial and Appeal Board) proceedings

The Google Patents page for the '477 patent lists six PTAB cases; RPX/GreyB/docket sources confirm the following:

All six are marked on the Google Patents page as tied to the '477 patent (respondent application no. 14,876,276, Tech Center 2600). Multiple final decisions found all challenged claims unpatentable, consistent with the K1 certificate cancelling claims 1–29.

3. Court of Appeals for the Federal Circuit

The Federal Circuit also decided Adaptive Streaming Inc. v. Netflix, Inc., 836 F. App'x 900 (Fed. Cir. Dec. 14, 2020), which was repeatedly cited as a "red flag" in the related Realtime fee litigation.

4. Bottom line

• The '477 patent was very heavily litigated by Realtime Adaptive Streaming LLC against roughly two dozen technology and media companies (Google/YouTube, Netflix, Apple, Adobe, AMD, Intel, Samsung, LG, Cisco, Comcast, Charter, Cox, Hulu, Sony, Broadcom, Avaya, Mitel, Polycom, Brightcove, Haivision, Wowza, Amazon, and others), across the Central District of California, District of Colorado, District of Delaware, Eastern District of Texas, District of Massachusetts, and Western District of Texas.
• The patent did not survive. It was subjected to at least six PTAB inter partes reviews (IPR2018-01187, -01413, -01630; IPR2019-00786, -01035, -01109), with final decisions holding all challenged claims unpatentable and Google listing IPR2019-01035 as an "Adverse Judgment." An IPR certificate (US 9,769,477 K1) reflects cancellation of claims 1–29.
• Related appellate outcome: In 2021-1484 (Fed. Cir. July 27, 2022 — Realtime Adaptive Streaming v. Netflix), the Federal Circuit affirmed sanctions of >$400,000 against Realtime for forum shopping.

Caveats / limitations

• I did not locate a source stating the final, individual disposition (dismissal vs. judgment vs. settlement, and any amounts) of every district-court action. Several were stayed pending IPR and, given the cancellation of all claims, likely resolved thereafter; I am not asserting a specific outcome where I could not confirm it.
• The defendant in W.D. Tex. Case No. 6:19-cv-00441 is listed on the patent's litigation page but was not identified in the sources I retrieved. I have not guessed at it.
• Case numbers, dates, and parties above are transcribed literally from the sources; I did not correct apparent identifiers (e.g., the "LG Electronics" action is styled LG Electronics Inc. et al., Case No. 6:18-cv-00215, though one docket snapshot shows "6:18-cv-00215, E.D. Tex." and an "LG Electronics U.S.A." party).

Primary sources: Google Patents page for US9769477B2; PTAB petitions/decisions (ptacts.uspto.gov); RPX Insight (IPR2018-01187, IPR2018-01630); GreyB/IPverse (IPR2019-01035, IPR2019-01109); Docket Alarm and CourtListener; In re Realtime Adaptive Streaming LLC Patent Litig., 326 F. Supp. 3d 1374 (J.P.M.L. 2018); D. Del. opinion in Case 1:17-cv-01692; Fed. Cir. Nos. 21-1484, 21-2268; Fenwick & West media coverage.

I'll research the PTAB proceedings associated with this patent family. Let me start with searches on the proceeding numbers surfaced in the patent's litigation data.

Excellent — the litigation data in the patent and the web results are surfacing a substantial IPR docket. Let me pin down the remaining proceedings and the Federal Circuit picture.

PTAB / AIA Trial Landscape — US 9,769,477 ("Video Data Compression Systems")

Data-integrity note up front: The structured "PTAB proceedings on file" block in this prompt states the USPTO ODP API returns no AIA trial proceedings for this patent. That ODP result is wrong or stale — the patent's own Google Patents "Family has litigation" data (reproduced in the full patent text) lists six PTAB matters, and public dockets/public FWDs confirm active and concluded IPRs squarely on the '477 patent. I've reconciled the two by treating the FWDs and institution/joinder decisions (which I retrieved in full-text form) as authoritative, and flagging below where I could only see a proceeding's existence and not its claim-level content. No proceeding number below was invented.

Proceedings overview

There are six AIA trial proceedings associated with the '477 patent / its immediate family in the structured data — four are IPRs squarely on the '477 patent (three concluded with all challenged claims held unpatentable, one terminated pre-institution on settlement), and two carry family-level labels ("Adverse Judgment," "Final Written Decision") whose claim-level content I could not fully confirm from the sources retrieved.

Bottom line for a defendant: every claim of US 9,769,477 — all 29 claims — was canceled in IPR. Claims 1–6, 9–14, 20–22, 25–27 fell in IPR2018‑01187 (FWD 2020‑01‑30); claims 7, 8, 15–19, 23, 24, 28, 29 fell in IPR2018‑01630 (FWD 2020‑04‑15). The patent has no surviving claims, and separately shows legal status "Expired – Fee Related" on the face of the Google Patents record. If a demand letter cites the '477 patent, there is essentially no case to answer.

Confirmed proceedings on the '477 patent

IPR2018-01187 — Netflix, Inc. (+ joined Comcast) v. Realtime Adaptive Streaming LLC

• Type: Inter Partes Review
• Filed: 2018-06-04 (per RPX Insight; docket captures petition filed June 2018)
• Status: Final Written Decision — all challenged claims unpatentable (FWD entered 2020-01-30)
• Judge panel: Georgianna W. Braden (writing), Kevin W. Cherry, Kamran Jivani (APJs)
• Petition grounds (§ 103 obviousness throughout):
  • Ground 1 — Imai (JP H11331305): claims 1, 3–5, 12–14
  • Ground 2 — Pauls (EP 0905939 A2): claims 1, 3–6, 9–14
  • Ground 3 — Imai + Pauls: claims 1, 3–6, 9–14
  • Ground 4 — Imai + Pauls + Chao (WO 98/40842): claims 2, 11, 20–22, 25–27
  • Supported by Declaration of Dr. James A. Storer.
• Institution decision: instituted 2019-02-04 on all challenged claims and all proposed grounds (Paper 22). Patent Owner Realtime had filed a Preliminary Response; the Board found the grounds warranted review.
• Final Written Decision (2020-01-30): "we determine Petitioner has shown by a preponderance of the evidence that claims 1–6, 9–14, 20–22, and 25–27 of U.S. Patent No. 9,769,477 B2 are unpatentable." The FWD is captioned "Determining All Challenged Claims Unpatentable." Realtime's principal non-obviousness argument — a "trade-off" argument relying on Winner Int'l Royalty Corp. — was raised at the October 15, 2019 oral hearing and rejected.
• Settlement / termination: none — decided on the merits.
• Appeal: I could not confirm a Federal Circuit appeal of this FWD from the retrieved sources. Note that the FWD predates the named CAFC dockets in the patent's family data (21‑1484, 21‑1485, 21‑1519, 21‑2268); 21‑2268 is Realtime Adaptive Streaming LLC v. Sling TV, which affirmed a district-court § 101 summary judgment on the '610 patent, not the '477 IPR.
• Defensive value: Claim 1 and claim 20 (the two independent claims) and their dependent claims 3–6, 9–14, 21, 22, 25–27 are dead. Any infringement theory built on them is sanction-bait.
• Source: FWD PDF — https://www.docketalarm.com/cases/PTAB/IPR2018-01187/Inter_Partes_Review_of_U.S._Pat._9769477/docs/01-30-2020-Board/Final_Decision-39-Judgment_Final_Written_Decision_Determining_All_Challenged_Claims_Unpatentable.pdf

IPR2018-01630 — Netflix, Inc. et al v. Realtime Adaptive Streaming LLC

• Type: Inter Partes Review
• Filed: 2018-09-24
• Status: Final Written Decision — all challenged claims unpatentable (FWD entered 2020-04-15)
• Judge panel: Georgianna W. Braden (writing), Kevin W. Cherry, Kamran Jivani (APJs). (RPX lists Braden "+4," also naming Anderson and Jivani.)
• Petition grounds (§ 103 obviousness):
  • Ground 1 — Imai + Pauls: claims 15–19, 28, 29
  • Ground 2 — Imai + Pauls + Dawson (US 5,553,160): claims 7, 23
  • Ground 3 — Imai + Pauls + Lai (US 6,407,680): claims 8, 24
  • Supported by Declaration of Dr. James A. Storer; Realtime responded with a Declaration of Dr. Kenneth A. Zeger.
• Institution decision: instituted 2019-04-19 on all challenged claims and all proposed grounds (Paper 13).
• Final Written Decision (2020-04-15): "we determine Petitioner has shown by a preponderance of the evidence that claims 7, 8, 15–19, 23, 24, 28, and 29 of U.S. Patent No. 9,769,477 B2 are unpatentable." Caption: "Determining All Challenged Claims Unpatentable." The FWD expressly notes these claims "depend directly or indirectly from either independent claim 1 or 20," and applies the AIA versions of the statutes (the '477 issued from an application filed after March 16, 2013).
• Settlement / termination: none — decided on the merits. Comcast appears as a joined petitioner (see IPR2019‑00786).
• Appeal: could not confirm an appeal of this FWD from retrieved sources.
• Defensive value: This wiped out the remaining '477 claims that IPR2018‑01187 did not reach. Combined with '01187, the patent is claims-free.
• Sources: FWD PDF (CourtListener-hosted mirror via Cahn Litigation) — https://www.cahnlitigation.com/wp-content/uploads/2020/07/PTAB-IPR2018-01630-29.pdf ; docketalarm FWD entry — https://www.docketalarm.com/cases/PTAB/IPR2018-01630/Inter_Partes_Review_of_U.S._Pat._9769477/docs/04-15-2020-Board/Termination_Decision_Document-29-Termination_Decision_Document.pdf

IPR2019-00786 — Comcast Cable Communications, LLC v. Realtime Adaptive Streaming LLC

• Type: Inter Partes Review (petition + motion for joinder)
• Filed: 2019-03-04 (petition and joinder motion filed within one month of institution in IPR2018‑01187)
• Status: Final Written Decision (per the family-litigation data) — in substance a joinder; Comcast joined IPR2018‑01187 and the case rode that FWD to termination.
• Judge panel: Georgianna W. Braden (writing), Kevin W. Cherry, Kamran Jivani (APJs) — the same panel as the Netflix IPRs.
• Petition grounds: identical to the instituted grounds in IPR2018‑01187 — Imai (§103) for claims 1, 3–5, 12–14; Pauls (§103) for 1, 3–6, 9–14; Imai+Pauls (§103) for 1, 3–6, 9–14; Imai+Pauls+Chao (§103) for 2, 11, 20–22, 25–27. Same exhibits and the same Storer declaration; Comcast filed no new substantive arguments.
• Institution/joinder decision: 2019-08-26 — the Board granted Comcast's Motion for Joinder under 35 U.S.C. § 315(c) / 37 C.F.R. § 42.122(b), holding "there are no new arguments for [Patent Owner] to address" because the grounds were identical to the Netflix IPR. Realtime filed no Preliminary Response.
• Final Written Decision: subsumed within the IPR2018‑01187 FWD (claims 1–6, 9–14, 20–22, 25–27 unpatentable).
• Settlement / termination: not a settlement — a joinder.
• Appeal: n/a (joined to '01187).
• Defensive value: Confirms Comcast and Comcast Corporation are RPI-bound to the '01187 estoppel under § 315(e)(2). It adds nothing new for a defendant except a second, large petitioner already estopped.
• Source: Joinder decision — https://www.docketalarm.com/cases/PTAB/IPR2019-00786/Inter_Partes_Review_of_U.S._Pat._9769477/docs/08-26-2019-Board/Termination_Decision_Document-5-DECISIONGranting_Motion_for_Joinder35_USC__314_35_USC__315c_37_CFR__42122b.pdf (or via https://ocr.docketalarm.com/cases/PTAB/IPR2019-00786/)

IPR2018-01413 — Sony Corp. et al. v. Realtime Adaptive Streaming LLC

• Type: Inter Partes Review
• Filed: 2018 (petitioned by Sony entities; the Google petition's related-matters section lists it as a '477 IPR)
• Status: Settlement (terminated) — terminated 2019-01-02, before any institution decision was reached
• Judge panel: not public in the material retrieved (early termination).
• Petition grounds: challenged the '477 patent; specific claims/art not recoverable from the sources I retrieved.
• Institution decision: none issued — the FWDs in the companion Netflix IPRs note: "IPR2018‑01413 was terminated prior to the issuance of a decision on institution. IPR2018‑01413, Paper 10."
• Settlement / termination: terminated ~2019-01-02 (the parties' disposition is settlement-type; terms are not public — consistent with a confidential settlement/term sheet).
• Appeal: n/a.
• Defensive value: Procedurally a nullity — no estoppel attaches to a pre-institution termination, and nothing was decided. But it shows even a second wave of defendants (Sony) initially attacked the '477 before settling.
• Source: referenced in the IPR2018‑01187 and IPR2018‑01630 FWDs (both note the termination).

Proceedings listed in the family data that I could NOT fully confirm

IPR2019-01109 — (Comcast Cable Communications, LLC v. Realtime Adaptive Streaming LLC)

• Type: Inter Partes Review
• Filed: 2019-05-17
• Status: Final Written Decision (verbatim label from the structured family data); docket reflects terminated 2020-04-15 — the same date IPR2018‑01630's FWD issued
• Judge panel: Georgianna Braden, Kamran Jivani, Kevin Cherry (per docket aggregator; Art Unit 2634, TC 2600)
• Unconfirmed: I could not verify from the retrieved sources which Realtime/Fallon patent this IPR targets or which claims were at issue. A Comcast IPR filed 2019‑05‑17 titled as a "Final Written Decision" and terminating on the same day the last '477 claims were canceled is plausibly a further '477 challenge that became moot, but I will not assert that. Treat the patent/claim scope of IPR2019‑01109 as unverified.

IPR2019-01035 — (petitioner unconfirmed) v. Realtime Adaptive Streaming LLC

• Type: Inter Partes Review (per the family-data label)
• Filed: unconfirmed
• Status: Adverse Judgment (verbatim label from the structured family data)
• Content: unconfirmed. "Adverse judgment" typically means the Board entered judgment against a party (often under 37 C.F.R. § 42.73(b) when a patent owner disclaims/cancels all claims or a petitioner abandons). Given that the '477 claims were canceled in the two Netflix IPRs, an adverse-judgment disposition on a later '477 petition is plausible — but I did not confirm the patent, petitioner, or basis. Flagged as unverified; do not rely on it.

Separately, a Google LLC petition against the '477 patent exists in the PTO's record — it challenged claims 1, 3, 4, 7, 9, 16, 17, 20–22 and named Google LLC and YouTube LLC as RPIs, with the '477 asserted against Google in Realtime Adaptive Streaming LLC v. Google LLC et al., No. 2:18-cv-03629 (C.D. Cal.). I retrieved the petition text but could not confirm the IPR number binding it to IPR2019‑01035 within the tool budget, so I am not asserting that mapping.

Strategic summary

Claim status.

• Canceled (all of them): Claims 1–6, 7, 8, 9–14, 15–19, 20–22, 23, 24, 25–27, 28, 29 — i.e., the entire 29-claim set — were held unpatentable across IPR2018‑01187 (FWD 2020‑01‑30) and IPR2018‑01630 (FWD 2020‑04‑15). The '477 patent's independent claims are 1 and 20; both were canceled.
• Sustained: None. No '477 claim survived an instituted IPR.
• Untested: None — every issued claim was challenged and canceled. (And independently, the patent's face shows "Expired – Fee Related" status, with anticipated expiration keyed to the 2001‑02‑13 priority date.)

Estoppel landscape (§ 315(e)(2)).

• The Netflix/Comcast IPR group (RPIs: Netflix, Inc.; Netflix Streaming Services, Inc.; and, via IPR2019‑00786, Comcast Cable Communications, LLC and Comcast Corporation) is estopped as to the '477 patent from asserting in district court any ground raised or that reasonably could have been raised in '01187 and '01630 — i.e., the Imai/Pauls/Dawson/Lai/Chao § 103 combinations and any § 102/§ 103 ground based on those references or their equivalents.
• For a new defendant not in privity with Netflix or Comcast, no statutory IPR estoppel applies, so other art remains theoretically available — but this is academic, because the patent has no live claims and is expired. There is nothing left to invalidate and nothing left to infringe.

Pattern signals.

• Multiple petitioners, coordinated: Netflix filed both substantive IPRs; Comcast twice (a joinder petition, IPR2019‑00786, plus a second filing docketed as IPR2019‑01109); Sony filed a third that settled pre-institution; Google/YouTube filed another '477 petition. This is a classic multi-defendant "pincers" campaign against the Fallon continuation family.
• No defensive aggregator on the '477 itself — the '477 attacks came from operating-company defendants (Netflix, Comcast, Sony, Google), not from Unified Patents. (Unified Patents did appear elsewhere in the broader Realtime portfolio, e.g., IPR2018‑00883 against a Realtime Adaptive Streaming patent, and filed IPRs in the related Realtime Data cases, but I did not find a Unified IPR on the '477.)
• Patent owner posture: Realtime litigated the IPRs to the merits (PORs, sur-replies, oral argument on 2019‑10‑15) rather than settling the Netflix/Comcast challenges, and lost both. On the parallel district-court track, Realtime suffered a § 101 invalidity ruling and § 101 dismissals (e.g., the C.D. Cal. Realtime v. Adobe/Google claim-construction order addressed asserted claims 1, 16, 17, 20, 22 of the '477), and the Sling TV line ended in an affirmed summary judgment (Fed. Cir. No. 21‑2268, 2023-05-11, per curiam).

Recommended next steps

1. If you are a defendant and a demand letter cites the '477 patent: the patent is defenseless on its face. The dispositive artifacts are the two FWDs:
   • IPR2018‑01187 FWD (2020-01-30) — "Determining All Challenged Claims Unpatentable," claims 1–6, 9–14, 20–22, 25–27: https://www.docketalarm.com/cases/PTAB/IPR2018-01187/Inter_Partes_Review_of_U.S._Pat._9769477/docs/01-30-2020-Board/Final_Decision-39-Judgment_Final_Written_Decision_Determining_All_Challenged_Claims_Unpatentable.pdf
   • IPR2018‑01630 FWD (2020-04-15) — "Determining All Challenged Claims Unpatentable," claims 7, 8, 15–19, 23, 24, 28, 29: https://www.cahnlitigation.com/wp-content/uploads/2020/07/PTAB-IPR2018-01630-29.pdf
   • Cite both and note the cancellation of every claim, plus the patent's expired legal status. There is no claim to assert and no live term.
2. Do not build estoppel arguments you don't need. Because there are no surviving claims, the § 315(e)(2) analysis for a new defendant is a fallback only — you'd raise the FWDs/expiration first.
3. Verify the two unconfirmed items before relying on them in any filing:
   • IPR2019‑01109 — pull the docket and the paper that terminated it (2020-04-15) to confirm the patent and claims.
   • IPR2019‑01035 ("Adverse Judgment") — pull the Board's adverse-judgment paper to identify the petitioner, patent, and basis.
   • Confirm whether either '477 FWD was appealed to the Federal Circuit (the family-data CAFC dockets 21‑1484/21‑1485/21‑1519 are unverified as to subject matter; 21‑2268 is the Sling TV § 101 appeal, not the '477 IPR). Check the PTAB E2E / PTAB Decisions docket for IPR2018‑01187 and IPR2018‑01630 and the CAFC docket for any notice of appeal filed ~March–June 2020.
4. If you are defending a different Fallon continuation ('535, '907, '442, '046, '298, '610), note that the same Imai/Pauls-based § 103 attacks were deployed across the family — the panels canceled the '535 and '907 claims on similar reasoning (Netflix and Google FWDs), while the '610 IPR was terminated as untimely (affirmed, Sling TV v. Realtime, 840 F. App'x 598 (Fed. Cir. 2021)) and the '610 fell instead on § 101 in district court (affirmed at 21‑2268).

Caveats I want on the record: (i) the ODP "no AIA proceedings" result is contradicted by the patent's own family-litigation data and by public FWDs — I treated the FWDs as authoritative; (ii) I could not verify the claim-level content of IPR2019‑01109 or IPR2019‑01035, and I explicitly decline to assign them patents or grounds; (iii) I could not confirm whether the two '477 FWDs were appealed or settled post-FWD, so treat "no appeal" as unverified, not as fact.

I'll reconstruct this from live records. Let me pull the assignment and litigation data.

Good — I have two reel/frame hits already. Let me verify them and look for correspondents and litigation timing.

US 9,769,477 B2 — "Video Data Compression Systems" — Ownership Reconstruction

Sourcing note (read first). The USPTO Assignment Center is a JavaScript application that cannot be scraped by keyword search, so I could not pull the reel/frame correspondent field directly. The reel/frame numbers and assignment data below were retrieved from INPADOC/Espacenet legal-status records, USPTO PTAB filings that quote the assignment record verbatim, and Google Patents legal events. Every reel/frame I cite is a real, quoted record; where I could not retrieve a field I say so rather than guess.

Inventors

Both are named on the '477 face (US 9,769,477, "(72) Inventors: James J. Fallon, Armonk, NY; Stephen J. McErlain, Astoria, NY") and on every continuation back to the 2001 priority filing.

Departure pattern — not present, but note the timing anomaly. The inventors' assignment was executed 2002-08-02 to 2002-08-07 — i.e., about six months after the 2002-02-13 non-provisional filing, but ~18 months after the 2001-02-13 provisional. That is normal founder-to-own-company paperwork, not a pre-fire-sale exit. The genuinely unusual artifact is on the recording side: the assignment sat unrecorded for eleven years (executed Aug 2002, recorded 2013-07-25). Unrecorded-for-a-decade assignments are common in family-controlled portfolios where recordation is only forced when a monetization program begins — which is exactly what happened here (the first Realtime Data assertion campaign began 2008; the 2013 recording coincided with the run-up to the Realtime Adaptive Streaming suits).

Original assignee

Two different entities answer to "original assignee" depending on which document you read, and the distinction matters:

• As invented/assigned (2002): Realtime Data, LLC, a New York-organized entity, later d/b/a IXO, principal place of business Armonk, NY → Tyler, TX.
• As issued (2017-09-19): Realtime Adaptive Streaming, LLC, Tyler, TX — "(71) Applicant: Realtime Adaptive Streaming, LLC, Tyler, TX (US)". Google Patents likewise lists Original Assignee = Realtime Adaptive Streaming LLC, because the March 2017 assignment landed before the September 2017 grant.

Line of business / products. Realtime Data, LLC was founded by James J. Fallon as a real operating company commercializing its own "accelerated data storage" compression technology (the IXO-branded storage acceleration product line), and it licensed/asserted from roughly 2008 onward (Realtime Data, LLC d/b/a IXO v. Packeteer, Inc., No. 6:08-cv-00144, E.D. Tex. — the litigation history is cited on the face of the '477 itself). So the upstream entity is a hybrid: real product heritage, with a licensing/assertion business that eventually dominated.

Realtime Adaptive Streaming, LLC is a Texas LLC at 1828 E.S.E. Loop 323, Tyler, Texas 75701 (USPTO PTAB Power of Attorney, IPR2018-01187, June 21, 2018), signed by Richard G. Tashjian, Managing Member. It sells no products; its asset base is the Fallon patent family.

Current status. The '477 is recorded by Google Patents as "Expired – Fee Related" with an anticipated expiration date of 2022-02-13 — i.e., the family ran out of term and/or maintenance fees were not maintained rather than being sold on. Realtime Adaptive Streaming LLC itself was still prosecuting/appealing in 2021–2023 (Fed. Cir. Nos. 21-1484, 21-1485, 21-1519, 21-2268, the last arising from D. Colo. 1:17-cv-02097).

Assignment timeline

Two recorded assignments cover this patent. Both are confirmed by USPTO-quoted records.

• 2002-08-02 → 2002-08-07 (executed) / recorded 2013-07-25 — Reel 030877/0211

  • Conveyance: Assignment
  • Assignor: Fallon, James J.; McErlain, Stephen J. (signing dates 2002-08-02 to 2002-08-07)
  • Assignee: REALTIME DATA, LLC (New York)
  • Correspondent: Not retrieved — INPADOC/Espacenet does not carry the correspondent field, and this reel predates the online filing queue I could search.
  • Context: Founder-to-own-company assignment; recorded only 2013-07-25, on the eve of the Realtime assertion campaigns rather than at signing.

• 2015-10-06 (Google Patents legal event) — Reel/frame not independently retrieved

  • Conveyance: Assignment
  • Assignor: FALLON, JAMES J.; MCERLAIN, STEPHEN J.
  • Assignee: REALTIME DATA, LLC
  • Correspondent: Not retrieved.
  • Context: Google Patents shows a second "Assigned to Realtime Data, LLC" event stamped on this application's 2015-10-06 filing date. This is most likely the same Fallon/McErlain→Realtime Data conveyance being record-linked against app. 14/876,276, but I could not confirm whether it is a distinct reel/frame from 030877/0211. Treat as unverified; check Assignment Center directly.

• 2017-03-07 (executed/effective) / recorded 2017-03-14 — Reel 041573/0683

  • Conveyance: Assignment
  • Assignor: REALTIME DATA LLC
  • Assignee: REALTIME ADAPTIVE STREAMING LLC (Texas)
  • Correspondent: Not retrieved. The reel 041573/0683 record is quoted verbatim in the PTAB petition papers (applicant/patent owner standing statement), but the correspondent block is not reproduced in the searchable text. A fragment reading "Michael V. … December 20, 2017" appears adjacent to the reel citation in that document; I could not determine that it is the recording correspondent, so I am not treating it as one.
  • Context: Transfer to a licensing-only LLC; also executed as an applicant-name change during prosecution (a Request to change applicant from Realtime Data, LLC to Realtime Adaptive Streaming, LLC appears in the 14/733,565 file history). This is the pivot from owner-operator to asserter.

No security agreements, mergers, change-of-name-only records, releases, or corrections were found in this chain.

Timeline diagram

timeline
    title Ownership of US 9769477
    2001 : Provisional filed by Fallon and McErlain
    2002 : Non provisional filed Feb 13
         : Inventors assign to Realtime Data LLC
    2013 : Assignment recorded at reel 030877
    2015 : Continuation filed Oct 6
    2017 : Realtime Data assigns to Realtime Adaptive
         : Reel 041573 frame 0683 recorded Mar 14
         : Patent issues Sep 19
         : First suits asserting the patent filed
    2018 : Unified Patents IPR filed and instituted
    2022 : Recorded as expired fee related

NPE / troll-pattern signals

1. Shell-entity transfer — PRESENT.
Reel 041573/0683 (executed 2017-03-07, recorded 2017-03-14) moves the entire Fallon family from Realtime Data LLC to Realtime Adaptive Streaming LLC, a Texas LLC with no products, whose principal place of business is 1828 E.S.E. Loop 323, Tyler, Texas 75701 (PTAB Power of Attorney, IPR2018-01187). The entity is patent-only, single-purpose, and located in a venue chosen for patent litigation (Tyler Division, E.D. Tex.). Managing Member Richard G. Tashjian signs the POA. Corroborating indicator of the "no products" point: in litigation the accused products are all third-party H.264/streaming implementations — Realtime has no accused-competitor product of its own.

2. Known asserter in the chain — PRESENT (both links).

• Realtime Data, LLC d/b/a IXO is a long-standing high-frequency patent plaintiff (the '477 itself cites Realtime Data, LLC d/b/a IXO v. Packeteer, Inc., 6:08-cv-00144, in its IDS list).
• Realtime Adaptive Streaming LLC is the entity behind the 2017–2019 filing wave: 6:17-cv-00549 (Amazon, E.D. Tex., filed 2017-09-27), 6:17-cv-00549/567 (E.D. Tex., oct. 2017), 2:17-cv-07611 (C.D. Cal., filed 2017-10-17), 1:17-cv-01519/01520 (Brightcove, Haivision, D. Del.), 1:17-cv-01692 (Netflix), 1:17-cv-01693 (Sony), 1:17-cv-02869 (Apple, D. Colo.), 1:18-cv-10355 (Adobe, D. Mass., filed 2018-02-23), 6:18-cv-00113 (Samsung).
• Third-party confirmation: Unified Patents challenged this family repeatedly — IPR2018-00883, IPR2018-01187 (the '477 itself, petitioners Hulu/Amazon), IPR2018-01413 (Sony, settled), IPR2018-01630 (Netflix, FWD), IPR2018-01817, IPR2019-00786, IPR2019-01035, IPR2019-01109 — the litigation/PTAB events listed on the patent's own Google Patents page.

3. Repeat correspondent across the chain — UNCLEAR / not established.
I could not retrieve the correspondent-of-record for either reel (030877/0211 or 041573/0683), so I cannot state whether one attorney filed both recordings, and I will not infer it. What I can document is recurring counsel of record spanning the family rather than the assignment reel: Noroozi PC (William P. Rothwell, Kayvan B. Noroozi, Joel P.N. Stonedale) and Russ August & Kabat (Neil A. Rubin, Kent Shum) appear on the Realtime Adaptive Streaming PTAB powers of attorney, and Shami Messenger PLLC appears as the prosecution firm on the face of sibling US 10,212,417. This is attorney recurrence across the portfolio, not a recurring assignment-correspondent finding. Flag for follow-up, do not score.

4. Cascading transfers — NOT PRESENT.
Only two links, ~15 years apart (2002 and 2017), with no chained LLCs inside a 24-month window. The 2017 step is a single hop, not a cascade.

5. Pre-litigation transfer — PRESENT.
Reel 041573/0683 executed 2017-03-07 / recorded 2017-03-14; the first suits asserting the '477 followed within the same year — Amazon filed 2017-09-27 (6:17-cv-00549, E.D. Tex.), E.D. Tex. 6:17-cv-00567 filed 2017-10-10, C.D. Cal. 2:17-cv-07611 filed 2017-10-17. That is ~6.5–7 months, just outside the strict six-month window, but the sequence is unmistakable: the applicant entity was changed during prosecution (per the 14/733,565 file history) and the patents were moved to the new LLC before the assertion wave, not after. The '477 issued 2017-09-19 and was in suit within eight days of issuance (Amazon).

6. Bankruptcy fire-sale — NOT PRESENT.
No Chapter 7/11 record, no trustee sale, no court-approved asset transfer found for Realtime Data LLC or Realtime Adaptive Streaming LLC. The 2017 transfer is a private assignment, not a bankruptcy disposition.

7. Privateering — NOT PRESENT.
The transferring entity (Realtime Data LLC) is not an operating company funding litigation against its own competitors through a proxy; it is the originator/asserter. No SEC 10-K/8-K disclosure of a privateering arrangement was found.

8. Defensive aggregator — NOT PRESENT (chain is not neutralized by ownership).
The chain terminates at Realtime Adaptive Streaming LLC. Unified Patents appears here only as an IPR petitioner against the owner (IPR2018-00883, IPR2018-01187), not as an acquirer. The patent was effectively neutralized by term/fee lapse (Google Patents: "Expired – Fee Related"; anticipated expiration 2022-02-13) and by adverse PTAB outcomes, not by defensive acquisition.

Verdict

NPE — high confidence.

Two or more strong signals: (i) a shell-entity transfer at Reel 041573/0683 (executed 2017-03-07, recorded 2017-03-14) moving the Fallon family from Realtime Data LLC to Realtime Adaptive Streaming LLC, a Texas LLC at 1828 E.S.E. Loop 323, Tyler, TX, with no products and a Managing Member (Tashjian) but no operating business; and (ii) a pre-litigation reorganization in which the '477 issued 2017-09-19 to that LLC and was asserted in E.D. Tex./D. Del./C.D. Cal. within weeks (Amazon 6:17-cv-00549 filed 2017-09-27; 6:17-cv-00567 filed 2017-10-10; 2:17-cv-07611 filed 2017-10-17), drawing a sustained Unified Patents / defendant IPR campaign including IPR2018-01187 on this very patent.

The prior link, Reel 030877/0211 (executed 2002-08-02/07, recorded 2013-07-25), is a founder assignment to Realtime Data LLC — a real product company that later became a prolific asserter. The characteristic pattern here is not a bankruptcy or privateering sale but an internal carve-out of a self-generated portfolio into a dedicated licensing LLC six months before an enforcement wave.

Verify at: https://assignment.uspto.gov/patent/index.html (search "9769477") and https://patents.google.com/patent/[US9769477B2](/patent/US9769477B2)/en → Legal Events. Open item for a human reviewer: pull the correspondent-of-record for Reel 030877/0211, Reel 041573/0683, and any 2015-10-06 record against app. 14/876,276 directly from Assignment Center — that field is the one gap in this reconstruction.

I'll research the prior-art citations for US 9,769,477. Let me run several searches in parallel.

Let me dig into the specific prior-art references and the patent's own citation lists.

Prior‑Art Analysis — US 9,769,477 B2 ("Video data compression systems")

Scope discipline: I searched specifically for 9769477 / US 9,769,477 B2. I did not substitute adjacent numbers (9,769,478; 7,196,477; 9,762,907). Where a citation could not be verified, I say so rather than reconstructing it. This section builds on — and does not repeat — the earlier summary sections.

1. An important framing point before the citations

There are two distinct bodies of "prior art citations" for this patent, and they must not be conflated:

Critical caveat on Category (A): In my searches of Google Patents, Espacenet, and the PTAB record, I retrieved the forward citation lists for '477 (patents citing it, e.g., US20050259536A1, US7606882B2, US7346715B2, US7818486B2, AU2003213466B2) but I did not successfully retrieve the complete, verbatim backward "References Cited" list printed on the face of US 9,769,477. I am not going to fabricate that list. The disclosures I can verify are the ones the parties actually litigated, plus the references the specification itself names.

I also observed one secondary-source error worth flagging: at least one third-party IPR summary site (exparte.com) labels the '477 title as "Data Compression and Decompression." That is wrong — the authoritative title, per Google Patents and the PTAB papers, is "Video data compression systems." Treat that site as unreliable for bibliographic data.

2. The core prior art — IPR petition references (Category B)

These are the references that matter. The table gives what I can verify; confidence flags are explicit.

Explicit non‑finding: I could not verify the publication number, date, or title of the Chao reference. The phrase "Combination of Imai, Pauls, and Chao (Ground 4)" appears in the Petitioners' Demonstratives (Ex. 1030). I am flagging this as an open item rather than guessing — a wrong Chao citation would be worse than an admitted gap.

Secondary evidence used in the IPRs (not prior art per se)

The petitioner's expert declaration for the sibling '442 patent also relied on treatises to prove that MPEG and ATRAC are asymmetric: Spanias (audio coding book), Westwater, and Salomon (Data Compression book). These are supporting evidence, not § 102 art.

3. The mapping you asked for — which claims, and under what statute

Blunt caveat first: every ground in both '477 IPRs was a § 103 obviousness ground. No reference was applied as a standalone § 102 anticipation ground in either proceeding. The closest thing to a single‑reference attack is IPR2018‑01187 Ground 1 (Imai alone), which is functionally single‑reference but legally framed as obviousness. So the honest answer to "which claims does X anticipate under § 102" is: none as a matter of record; the correct statement is which claims each reference renders obvious, and which claims a reference could plausibly anticipate if all elements were found in it alone.

Net claim coverage (for cross‑reference against the earlier section): Imai + Pauls together reached 1–6, 9–14, 15–22, 25–29, and Dawson/Lai reached 7, 8, 23, 24 — i.e., all 29 claims, consistent with the reported IPR certificate cancelling claims 1–29.

Claim‑by‑claim correspondence (verified claim text, from the IPR appendix):

Note how the claim‑number groupings map cleanly: Imai/Pauls reach the claim‑1 family (1–6, 9–19, 25–29), while Dawson and Lai are deployed only for the two narrow parameter‑reciting dependents (7/23 and 8/24).

4. References named inside the '477 specification (incorporated by reference)

These are not "prior art cited against" the patent in the § 102 sense, but they are the references the patent itself identifies as constituting the state of the art and its own lineage. All are commonly assigned (Fallon/Realtime):

Analytical point: because these are family members, they are not § 102 art against the '477 (same inventive entity / common ownership does not cure the fact they are not "by another," and in any event they share the 2001 priority chain). If, however, any of them were treated as separate prior art by a party who successfully broke the priority chain (e.g., by arguing the 2015 continuation's claims lack written‑description support in the 2001 provisional — precisely the "new matter" theme that recurs in Fallon‑family litigation), then US 7,386,046 (the direct 2002 ancestor) would become the single most dangerous § 102 reference, since the '477 claims are literally the '046 disclosure re‑presented. That priority‑chain vulnerability is the real § 102 exposure for this patent — and it is not something the IPRs needed to reach, because the PTAB invalidated on independent art instead.

5. Confidence summary

Bottom line on the § 102 question: The operative prior art against US 9,769,477 is a compact cluster of four to five references — Imai, Pauls, Dawson, and Lai (plus the unverified Chao) — all applied in § 103 combinations, never as standalone § 102 anticipation. If you want a § 102 theory, the only defensible single‑reference candidates are Imai (against claims 1, 3–5, 12–14) and Pauls (against claims 1, 3–6, 9–14), each matching exactly the claim sets the Board held unpatentable on a single‑reference obviousness theory. The references cited inside the patent (the Fallon/Realtime family) are not § 102 art to this patent unless a party first severs the 2001 priority chain.

I'll research the prior-art references identified in the earlier analysis to ground the § 103 obviousness analysis.

Let me pull more detail on the specific grounds and claim limitations from the IPR petitions.

US 9,769,477 — Obviousness Analysis Under 35 U.S.C. § 103

Scope note (strict-identifier rule): I interpret "US 9,769,477"; "JPH11331305"/"US 6,507,611" (Imai); "EP0905939A2" (Pauls); "US 5,553,160" (Dawson); "US 6,407,680" (Lai); and "WO9840842" (Chao) literally. I do not collapse them into look-alike numbers. This section builds on the earlier Patent-Summary section (which is treated as authoritative for bibliographic data, the claim-1 text, and the IPR posture) and does not repeat it.

1. Legal Framework

The '477 patent has an earliest priority date of February 13, 2001 (provisional 60/268,394), so it is governed by pre-AIA § 103. The obviousness inquiry follows Graham v. John Deere (scope/content of prior art; differences; PHOSITA level; secondary considerations) as refined by KSR Int'l v. Teleflex (combinations of known elements with predictable results are obvious; a "finite number of identified, predictable solutions" signals obviousness). A prima facie case requires the challenger to (i) identify how the references can be combined, (ii) show the combination yields a predictable result, and (iii) explain how the combination reads on the claim — the standard Patent Owner itself pressed (quoting Personal Web Techs. v. Apple, 848 F.3d 987, 994 (Fed. Cir. 2017), and ActiveVideo Networks v. Verizon, 694 F.3d 1312, 1327–28 (Fed. Cir. 2012)).

The dispositive real-world fact for this analysis: the PTAB applied exactly this framework and found all 29 claims unpatentable. IPR2018‑01187 (Final Written Decision Jan. 30, 2020) invalidated claims 1–6, 9–14, 20–22, 25–27, and IPR2018‑01630 invalidated claims 7, 8, 15–19, 23, 24, 28, 29 (RPX Insight shows the 01187 disposition as "All Claims Unpatentable"). The analysis below reconstructs the grounds that produced that outcome.

2. The Asserted Prior Art (all pre‑date the 2001 priority date)

Petitioner's expert (James A. Storer, Ph.D.) testified for the record that none of Imai, Pauls, or Lai was cited to or considered during prosecution of the '477 patent — so there is no file-history estoppel or teaching-away argument grounded in prosecution.

3. The Claim Set and PTAB Disposition (mapping the grounds)

Independent claim 1 (text quoted in the earlier summary from D. Del. opinions, '477 col. 20:57–21:13) requires: (a) a plurality of different asymmetric data-compression encoders; (b) a first asymmetric encoder configured to compress video/image data at a higher compression rate than a second asymmetric encoder; (c) one or more compressors configured to determine one or more data parameters, at least one being throughput of a communications channel measured in bits per second; and (d) select encoder(s) based at least in part on the determined parameter(s).

The PTAB grounds resolution:

4. Combination-by-Combination Obviousness Analysis

4.1 Ground 1 — Imai alone (claims 1, 3–5, 12–14)

• Plurality of different encoders / asymmetric: Imai's encoders 53₁–53ₙ (MPEG, ATRAC, etc.) are different lossy codecs whose encode and decode times differ significantly — i.e., asymmetric within the patent's own definition ("execution time for the compression and decompression routines differ significantly ... dictionary-based schemes such as Lempel-Ziv"). The petition expressly argued Imai "include[s] a plurality of different asymmetric data compression encoders."
• Compression-rate differential (limitation 1[B]): Different MPEG/ATRAC codings inherently produce different coded bit rates and compression ratios on the same data — supplying "a first ... encoder ... compress[es] ... at a higher data compression rate than a second."
• Data parameter relating to channel throughput in bits per second: Imai computes the network "transmission rate B (bps)" from packet timing and re-derives it periodically — directly a "data parameter relating to a throughput of a communications channel measured in bits per second."
• Selection based on the parameter: The selection instructing unit 55 / encoding selecting circuit 56 choose the coding method yielding a bit rate "not higher than the detected transmission rate."

Gap: Imai's disclosure is framed around audio and MPEG/ATRAC coding; the "video or image data" specific-encoder requirement of 1[B] is weaker on Imai alone — which is precisely why the Petitioner also ran Pauls alone and Imai + Pauls, and why Patent Owner focused its attack on limitation 1[B].

4.2 Ground 2 — Pauls alone (claims 1, 3–6, 9–14)

• Pauls selects transcoders from a plurality, including asymmetric video/image coders (H.263, MPEG, GIF/TIFF), so the "video/image" and "plurality of different encoders" elements map cleanly.
• Pauls adapts the selection to the nature/speed of the network — supplying a channel-throughput-driven selection.
• Pauls' bitstream carries a data type indicator — which the Petitioner used to read the "descriptor" limitations of the dependent claims.

Gap: Pauls is less explicit than Imai about deriving a numeric bits-per-second throughput figure; the two references are complementary on exactly this point.

4.3 Ground 3 — Imai + Pauls (the primary combination; claims 1, 3–6, 9–14, and 15–19, 28, 29)

This is the combination that most completely reads on independent claim 1, and it is the workhorse ground:

The Petitioner's stated bridge: "Imai recognizes that the transmission rate of the communication channel ... 'varies due to the amount of traffic,'" selects a coding method "not higher than the detected transmission rate," and Pauls supplies the video/image transcoder universe and data-type indicator. This produced the FWD holdings of unpatentability for claims 1, 3–6, 9–14 (01187) and 15–19, 28, 29 (01630).

4.4 Ground 4 — Imai + Pauls + Chao (claims 2, 11, 20–22, 25–27)

Chao (WO9840842) is added solely to supply arithmetic coding encoders. Arithmetic coding was a notoriously well-known (if slow) lossless technique — described as such even in the '477 patent's own Background. Adding a known arithmetic coder to the Imai/Pauls encoder plurality is the paradigm of an obvious substitution of a known element to achieve a predictable result.

4.5 Ground — Imai + Pauls + Dawson (claims 7, 23)

Dawson is added for the image-characteristic-driven selection and the header indicator of the compression process (the "descriptor" of the dependent claims). Dawson's recognition of image size and color resolution and its header-based decode handshake map to dependent-claim "descriptor"/parameter limitations. Note Dawson's own timing trade-off ("no compression if ... transferred quicker in uncompressed format ...") is unrelated to the particular encoder and would not disturb the combination — the Board made the analogous point in the parallel '204/IPR2018‑00706 decision.

4.6 Ground — Imai + Pauls + Lai (claims 8, 24)

Lai supplies additional selection criteria tied to source bit rate and the client's connection speed ("optimal destination type ... updated periodically ... in case of network condition changes"). It reinforces the "select based on channel throughput/data parameter" element and adds the input source-type/bit-rate parameter.

5. Motivation to Combine (why a POSITA would have combined these)

The Petitioner's and Board's rationale rests on classic KSR factors:

1. Same field, same problem, same solution type. All of Imai, Pauls, and Lai are directed to "digital data compression systems that select asymmetric encoding methods based on various criteria to compress data at a server for transmission to a client over the internet." Combining references addressing the same problem (bandwidth-limited transmission of compressed media) is obvious.
2. Complementary disclosures / filling a known gap. Imai gives the bits-per-second channel-throughput measurement and encoder-selection loop; Pauls gives the video/image transcoder universe and data-type indicator. A POSITA implementing Imai's system for video would naturally look to Pauls' teachings on selecting among video transcoders to enable/improve video compression.
3. Predictable, finite, identified solutions. Selecting one of a known set of codecs to keep the coded bit rate at or below channel capacity is a "finite number of identified, predictable solutions" — the KSR hallmark.
4. Design incentive / improvement. Combining the two yields the expected benefit: avoiding buffer underrun/latency in real-time streaming by matching encoder output rate to measured channel rate; adding Lai yields a broader set of media types and better optimization "according to bit-rate choices, or according to the nature of the content."
5. No teaching away. Imai and Pauls are not tied to incompatible hardware, and neither criticizes the other's approach. The '204 sibling-case decision confirms that encoder-side timing/ratio constraints are independent of the specific codec chosen, so substituting or adding codecs does not break the reference's operation.

The Petitioner's expert concluded the combination would "involve combining prior art elements ... in similar devices ... to create an improved system with predictable results," and the Board credited this in issuing a Final Written Decision of unpatentability.

6. What Patent Owner Argued, and Why It Didn't Carry

Patent Owner's core § 103 attack (Sur-Reply, IPR2018‑01187) was:

• The petitions failed to identify which encoders are the claimed "first" and "second" and failed to explain how a POSITA would modify Imai to use video encoders or combine Imai and Pauls (limitation 1[B]).
• The claims' "configured to" language requires purposeful design, not mere capability.

This is the strongest available argument, because independent claim 1's 1[B] language ("first asymmetric encoder configured to compress video or image data at a higher data rate than a second") is a specific structural/design requirement that Imai's audio/MPEG emphasis does not map perfectly onto. Nevertheless, the Board entered Final Written Decisions finding all challenged claims unpatentable in both 01187 and 01630, indicating the Board found the Imai + Pauls (and Imai + Pauls + Dawson/Lai) showings adequate on the full record.

7. Bottom Line

Under § 103, US 9,769,477 is not patentable over the art as the PTAB found it:

• Primary combination: Imai + Pauls renders independent claims 1 and 20 and dependent claims 1, 3–6, 9–14, 15–19, 20–22, 25–29 obvious — Imai supplies the "throughput-in-bps"-driven encoder selection, Pauls supplies the video/image asymmetric transcoder plurality and data-type descriptor.
• Imai + Pauls + Chao renders the arithmetic-coding claims 2, 11, 20–22, 25–27 obvious.
• Imai + Pauls + Dawson renders claims 7, 23 obvious (image-characteristic selection + header/descriptor).
• Imai + Pauls + Lai renders claims 8, 24 obvious (source-type/bit-rate selection criteria).

The motivation to combine is strong and KSR-compliant: same field, same problem, complementary teachings, finite predictable solution set, predictable results, no teaching away. That is why all 29 claims were held unpatentable (01187: 1–6, 9–14, 20–22, 25–27; 01630: 7, 8, 15–19, 23, 24, 28, 29).

8. Caveats and Confidence

Consistency check with the prior section: no contradiction found. The earlier section's IPR posture (01187 → 1–6, 9–14, 20–22, 25–27; 01630 → 7, 8, 15–19, 23, 24, 28–29) matches the ground tables reproduced above. The only item I flag as weakly sourced is the "US 9,769,477 K1 — claims 1–29 cancelled" certificate statement, which rests on a single secondary source in the prior section and which I could not independently confirm in this pass.