Invalidity dossier

US 10866773

Information apparatus for playing digital content that is received from a digital content service provided over the internet

Current assignee: Flexiworld Technologies, Inc.

Added 8/28/2026, 12:48:44 PM

At a glanceNo PTAB challenges1 lawsuit on fileasserted by Flexiworld Technologies, Inc.Software Technology & Computing Systems (T)

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Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

✓ Generated

US Patent 10,866,773 B2 — Analyst Summary

Bibliographic data (confirmed via Google Patents / USPTO records)

Field Value
Patent number US10866773B2
Title Information apparatus for playing digital content that is received from a digital content service provided over the internet
Application US 16/215,506, filed 2018-12-10
Issue date 2020-12-15
Priority date 2000-11-01 (claims priority to US 10/016,223, filed 2001-11-01, and US 10/053,765, filed 2002-01-18 — both earlier Flexiworld filings in the pervasive-output family)
Inventors William Ho Chang; Christina Ying Liu
Assignee Flexiworld Technologies Inc. (original and current)
Legal status Expired – Fee Related; adjusted expiration listed as 2022-02-28
Key classifications G06F3/12 (digital output to print unit), G06Q20/32 (wireless payment), H04L12/28 (home automation networks), H04L63/04 (encryption), H04L67/04 (protocols for limited-capability terminals)

Abstract

Uncertainty note: The Google Patents fetch you supplied did not include the abstract or the claims text, and my searches did not surface a verbatim abstract. I will not fabricate one. Based on the title and the specification, the invention is directed to an information apparatus (e.g., a mobile phone, PDA, tablet, or similar device) that receives digital content from a digital content service provided over the internet and plays/outputs that content — the specification framing it as a "pervasive output" system in which a small mobile device can obtain digital content from a network service and output it to a display, audio, or printing device without requiring full document processing on the mobile device itself.

Independent claims — plain-language overview

Important caveat: The granted claims were not included in the fetched Google Patents text (the fetch truncates mid-specification at the FIG. 9A description), and I could not confirm the exact claim language from USPTO in my searches. A claim-by-claim breakdown would be guesswork, so I am flagging this rather than inventing claim text.

What can be said with reasonable confidence from the title plus the specification (pervasive-output client/server architecture, output device objects, job objects, document objects, remote server conversion of documents into device-compatible output data, local wireless delivery to an output device):

  • The independent apparatus claims appear directed to an information apparatus (mobile/portable computing device) configured to:
    1. communicate, via a wireless communication unit, with a digital content service over the internet;
    2. receive digital content from that service (including content the device may be unable to fully display or process locally);
    3. play or output the digital content — e.g., on the device itself or by outputting to an output device — with processing/conversion of the content into an output-appropriate format handled remotely (e.g., by a server application) rather than by the limited-resource mobile device.
  • Dependent claims in this family typically add details such as the type of wireless interface (e.g., Bluetooth, IEEE 802.11), the content format (HTML, PDF, JPEG, etc.), authentication/security features, and output-device-specific rendering.

Bottom line: I can reliably state the claim scope in general terms (an internet-connected mobile information apparatus that receives and plays digital content from an online digital content service, with the pervasive-output architecture described throughout the spec), but I do not have authoritative verbatim claim text for this patent and recommend pulling the claims from USPTO Patent Public Search or the Google Patents claims tab for a claim-by-claim analysis.

Litigation / CAFC status (as of 2026-04-26)

  • District court: Flexiworld Technologies, Inc. v. Sony Corporation, No. 2:23-cv-00616 (E.D. Tex., filed 2019-12-19 — per RPX/PacerMonitor, filed 12/19/2023; Judge Rodney Gilstrap). US10866773 was among the patents asserted (sources list it among ~15 patents in the original complaint, including US9836257, US9836259, US11096056, US10768871, US9042811, US10846031, etc.).
  • Disposition: Per the stipulation order quoted in secondary sources (Dkt. 42), all claims and counterclaims were dismissed with prejudice under Rule 41(a)(1)(A)(ii), each party to bear its own costs, with no merits ruling — i.e., the patent's validity was not adjudicated.
  • CAFC: My searches for a Federal Circuit appeal docket involving Flexiworld/Sony and this patent returned no results (including no 2025–2026 CAFC docket entries found). Based on available records, I found no pending CAFC appeal tied to US10866773 as of today. If a notice of appeal exists it did not surface in the sources searched (PacerMonitor, RPX, PatSnap, Stanford NPE database), so treat the absence of an appeal as "not found," not conclusively "never filed."

Key uncertainties

  1. Abstract text — not captured in the supplied fetch; paraphrase above only.
  2. Verbatim independent claim language — not verified; general scope description only.
  3. Final patents-in-suit list — secondary sources differ (original complaint lists ~15 patents including 10,866,773; PatSnap describes "seven patents" after amendment). 10,866,773's inclusion in the case is corroborated by the Stanford NPE database and the Golden Compass patent-litigation index.

Generated 8/28/2026, 6:48:12 PM

Cases on file (1)

Group view →

Specific litigation cases in our database that name US patent 10866773. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

✓ Generated

I'll search for litigation involving US Patent 10,866,773. Let me run several targeted searches.

The Stanford NPE Litigation Database shows a case against Sony. Let me dig deeper for details and any additional cases.

I've identified the Sony case. Let me verify whether the newer Flexiworld cases (TCL, HP, LG) assert patent '773, since the LG case reportedly asserted only six other patents.

Based on my searches, here is what is known about litigation specifically involving US Patent 10,866,773 ("Information apparatus for playing digital content that is received from a digital content service provided over the internet," Flexiworld Technologies Inc.):

Confirmed litigation

1. Flexiworld Technologies, Inc. v. Sony Corporation

  • Case No.: 2:23-cv-00616
  • Jurisdiction: U.S. District Court for the Eastern District of Texas (Marshall Division)
  • Presiding Judge: Rodney Gilstrap
  • Plaintiff: Flexiworld Technologies, Inc.
  • Defendant: Sony Corporation
  • Filing date: December 19, 2023
  • Patents asserted: US '773 was one of 15 patents asserted in the case, including 7,609,402; 9,042,811; 9,836,257; 9,836,259; 9,965,233; 10,037,178; 10,140,073; 10,346,087; 10,460,890; 10,642,576; 10,768,871; 10,846,031; 10,866,773; 11,029,903; and 11,096,056 (per RPX/PatentPia listings).
  • Outcome/Status: Dismissed with prejudice. The parties filed a Joint Stipulation to Dismiss (Dkt. 42) under Fed. R. Civ. P. 41(a)(1)(A)(ii), dismissing "all pending claims and counterclaims" with prejudice; each party bore its own costs. The case was closed without any merits ruling on the patents (PACER/RPX/PatSnap). The case had progressed through an amended complaint (June 2024), a Markman hearing scheduled for June 2025, and a trial date of December 8, 2025, before the stipulated dismissal was entered.

Source: Stanford NPE Litigation Database (https://npe.law.stanford.edu/patent/10866773); RPX Empower (https://litigation.rpxcorp.com/litigation/txedce-[226846](/patent/226846)-flexiworld-technologies-v-sony); PACER Monitor (https://www.pacermonitor.com/public/case/51750256/Flexiworld_Technologies,_Inc_v_Sony_Corporation).

Related Flexiworld campaign cases (same patent family campaign) — '773 not confirmed

Flexiworld has run an ongoing E.D. Tex./S.D. Tex. campaign since June 2020 asserting roughly 40 wireless-connectivity and streaming patents. However, based on the records I found:

  • Flexiworld v. [LG Electronics Inc.](/litigations/by-plaintiff/LG%20Electronics%20Inc.) / LG Electronics USA, Inc. (2:25-cv-00960, E.D. Tex., filed Sept. 18, 2025): The six asserted patents were reported as 9,042,811; 9,836,259; 9,965,233; 10,140,072; 10,162,596; and 10,037,178 — '773 is not among them. A settlement/notice of settlement was filed per RPX (March 2026).
  • Flexiworld v. TCL Electronics Holdings Ltd. et al. (2:26-cv-00229, E.D. Tex., filed March 20, 2026): Asserts 12 patents; I could not confirm whether '773 is among them from the available sources.
  • Flexiworld v. HP (S.D. Tex., before Judge Charles Eskridge): Claim-construction rulings issued around December 2025; I could not confirm whether '773 is asserted in that case.

Bottom line

The only litigation I can confirm as involving US Patent 10,866,773 is Flexiworld Technologies, Inc. v. Sony Corporation, 2:23-cv-00616 (E.D. Tex.), filed December 19, 2023, and dismissed with prejudice by joint stipulation (no merits ruling). If you need verification on whether '773 is asserted in the TCL or HP cases, that would require reviewing the complaints on PACER (docket numbers 2:26-cv-00229 E.D. Tex. and the S.D. Tex. HP matter), which I was unable to fully confirm within my search limits.

Generated 8/28/2026, 6:48:12 PM

Proceedings on file (0)

All PTAB activity →

AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.

Current assignee: Flexiworld Technologies, Inc.

No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.

PTAB challenges

AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.

✓ Generated

Proceedings overview

There are zero AIA trial proceedings (IPR/PGR/CBM) on file for US Patent 10,866,773 — no active cases, no claims invalidated, no claims sustained, no settlements, and no institution denials — which means the patent is completely untested at the PTAB, and a defendant facing assertion today faces no estoppel from any prior petitioner and retains every § 102/§ 103 ground that the art of record supports.

This matches the canonical USPTO Open Data Portal block supplied in the prompt ("The USPTO ODP API returns no AIA trial proceedings for this patent as of the most recent ingest"), and my independent searches of PTAB sources corroborated it: the only Flexiworld IPRs that surfaced involve sibling patents (e.g., IPR2022-01112 Roku v. Flexiworld on US 10,140,073; IPR2023-00846 Lexmark v. Flexiworld on US 9,965,233; IPR2022-00775 Unified Patents v. Flexiworld on US 9,836,257) — none challenge US 10,866,773.

Because there are no proceedings, the per-proceeding template below is intentionally not populated, and no FWD citations, panel names, or claim-level outcomes are offered (there are none to report).


Strategic summary

Claims status — all claims UNTESTED, none canceled, none sustained. Every claim of US 10,866,773 is untouched by the PTAB. No petitioner has ever filed an IPR, PGR, or CBM against it, so there is no FWD narrowing the patent and no claim that a defendant can point to as dead on a PTAB record. This cuts both ways: the patent owner cannot claim a PTAB "win" as armor, but a defendant cannot rely on any PTAB-created weakness either. Note also the patent's legal status flag on Google Patents: Expired – Fee Related, with an adjusted expiration of 2022-02-28 (term measured from the 2001-11-01 non-provisional chain). An expired patent caps any damages exposure at pre-expiration conduct and forecloses injunctive relief — that, more than any PTAB record, is the current defensive lever.

Estoppel landscape — clean slate for everyone. Because no IPR has been filed on '773, no § 315(e)(2) estoppel has attached to any party. Any defendant (subject to the § 315(b) one-year bar from service of a complaint asserting '773) can raise any § 102/§ 103 ground, including art that has already been used successfully or unsuccessfully against Flexiworld's family members. The sibling IPRs are a ready-made prior-art library: Unified Patents' IPR2022-00775 on US 9,836,257 used Olgaard/Moghadam and Acharya/Griffiths (Flexiworld prevailed on conception-date grounds — a foreshadowing that Flexiworld will fight priority-date swearing-behind battles hard); Roku's IPR2022-01112 on US 10,140,073 and Lexmark's IPR2023-00846 on US 9,965,233 (settled/terminated 2024-01-26) show the art landscape the campaign's opponents have been mining. Since '773 shares the pervasive-output family priority (2000-11-01), the same pre-2001 art (e.g., Keeney, Vatland) is directly relevant.

Pattern signals. There is no serial-petitioner pattern on '773 itself — no one has filed even once. But the surrounding pattern is informative: (1) Flexiworld's ~40-patent wireless/streaming campaign (June 2020–present; E.D. Tex./S.D. Tex./W.D. Tex.) has drawn IPRs from Roku, Lexmark, and Unified Patents on other family patents, and Unified Patents has separately pursued ex parte reexamination of Flexiworld's RE48,066 (filed 2025-05-23) — a defensive aggregator is active in the portfolio even though it has not yet targeted '773; (2) Flexiworld has defended aggressively at the PTAB and won (IPR2022-00775), so a petitioner should expect a vigorous priority-date fight given the 2000-era provisional drafts; (3) '773 itself was included in the original complaint in Flexiworld v. Sony (2:23-cv-00616, E.D. Tex., filed 2023-12-19) but does not appear among the seven patents in the First Amended Complaint (exhibits: US9798516, US9042811, US9836259, US10768871, US10162596, US11029903, US11096056), and the case was dismissed with prejudice by joint stipulation (Dkt. 42) with no merits ruling — meaning '773 has effectively not been prosecuted in court either, and no party is currently estopped or barred by that litigation.


Recommended next steps

  • Confirm what you're actually facing. '773 is not in the amended Sony complaint, and the only confirmed litigation involving it (Sony, 2:23-cv-00616) is dismissed with prejudice. Verify whether '773 is among the 12 patents asserted in Flexiworld v. TCL (2:26-cv-00229, E.D. Tex., filed 2026-03-20) or the HP case (S.D. Tex.) before investing in an IPR — those complaints were not confirmable in my searches (see the litigation summary above).
  • If you are served with '773, the IPR door is open but the economics are odd. There is no estoppel from prior proceedings and no claim is PTAB-hardened, so a well-built IPR (using the Olgaard/Acharya/Keeney-class art already vetted in sibling cases) has a fair chance of institution. But weigh this against the patent's 2022-02-28 expiration: damages are limited to pre-expiration conduct, the § 315(b) one-year clock starts at service, and an IPR on an expired patent rarely justifies its cost unless the accused pre-expiration revenue is material or the patent is being used offensively against channel partners. The stronger first move is a summary-judgment-style expiration / limited-damages defense in district court.
  • Watch the sibling IPRs for the playbook. Flexiworld's successful conception-date defense in IPR2022-00775 (Paper 41, Nov. 1, 2023 — Unified Patents v. Flexiworld, US 9,836,257) means any '773 petition must preempt a swearing-behind attack with contemporaneous corroboration analysis; conversely, the art those petitioners assembled is directly reusable because '773 shares the same priority chain.
  • No PTAB activity is itself the signal here. The absence of a challenge to '773 despite a multi-year, multi-defendant campaign likely reflects the patent's early expiration and its quiet withdrawal from the Sony case — not that the claims are strong. Treat the claims as untested and attackable, but structure the defense around expiration first and PTAB second.

Key sourcing note (no fabrication): This is a "no proceedings on file" result. I did not invent any proceeding numbers, panels, FWDs, or claim dispositions, and I have not cited any — the USPTO ODP block reports zero AIA trials for US 10866773, and my searches (PTAB petition documents, ipverse/greyb PTAB case data, Patexia, Unified Patents portal) surfaced IPRs only against other Flexiworld patents (10,140,073; 9,965,233; 9,836,257; RE48,066 reexam). If a petition on '773 was filed after the ODP ingest, it would not appear here — a PACER/PTAB E2E check by case number is the definitive confirmation step.

Generated 8/28/2026, 6:49:03 PM

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

✓ Generated

Ownership & Assignment Analysis — US Patent 10,866,773 B2

Sources used: Google Patents (full-text fetch provided), RPX litigation documents (insight.rpxcorp.com), Unified Patents patent portal, Stanford NPE Litigation Database, CourtListener / Casetext (Flexiworld v. Roku), PACER Monitor. I was not able to query the USPTO Assignment Center directly in this session (interactive tool; search limit reached), so reel/frame entries below are limited to what is verifiable from secondary sources. Where a specific reel/frame is not verified, I say so plainly rather than inventing one.


Inventors

Inventor Employer at filing (determinable) Notes
William Ho Chang Flexiworld Technologies Inc. (founder/principal) Named inventor across the entire pervasive-output family (hundreds of Flexiworld patents/applications); the litigation pleadings in this family uniformly allege assignments "from inventors Chang and Liu to Flexiworld."
Christina Ying Liu Flexiworld Technologies Inc. (co-founder/principal) Same family-wide pattern.

Unusual patterns: None of the "inventors departed within 12 months / portfolio fire-sale" type. Both inventors are the principals of the assignee itself and remain associated with the family's prosecution and enforcement through the present litigation campaign. This is a founder-inventor licensing company, not a stranded-inventor situation.


Original assignee

  • Entity named on the issued patent (current assignee per Google Patents): Flexiworld Technologies Inc. (also indexed as "Flexiworld Tech Inc." in the Unified Patents portal for sibling patents in the same family, e.g., US 10,489,096 B2).
  • Line of business: Patent development and licensing. Flexiworld's own website (flexiworld.com) is organized as a patent-portfolio marketing portal (category pages for "Smart Watch," "Projector," etc.), describing itself as a pioneer/innovator in wireless output, streaming, and device-to-device content technologies.
  • Did they ship a product embodying the claims? No. In its own litigation pleadings, Flexiworld states: "Since issuance of each of the Patents-in-Suit, Flexiworld has not made, offered for sale, sold, or imported a product that practices any of the Patents-in-Suit or that would otherwise require marking under 35 U.S.C. § 287" (Flexiworld v. Sony, E.D. Tex. 2:23-cv-00616, Amended Complaint ¶ 100, quoted via RPX). This is a formal non-practicing-entity admission.
  • Current status: Operating (as of 2026-08) as a non-practicing licensing/assertion entity; still filing infringement suits (LG, Sept. 2025; TCL, Mar. 2026). No bankruptcy, no acquisition found. Flexiworld has also sold assets historically (e.g., assigned the '541 patent and '958 application to Samsung per the Flexiworld v. Roku standing decision, W.D. Wash.), but those were different assets, not the '773.

Assignment timeline

Verification caveat: I could not open the USPTO Assignment Center in this session, and neither Google Patents legal events for '773 nor my searches surfaced a '773-specific reel/frame. What is verified:

  • Google Patents legal events for US10866773 contain no assignment events at all — only filing/priority/grant/expiration events (2018-12-10 filed; 2019-04-25 published; 2020-12-15 granted; 2022-02-28 adjusted expiration; status "Expired – Fee Related"). No post-issuance transfer is reflected anywhere I searched, which strongly suggests Flexiworld Technologies Inc. has owned the patent continuously since filing and remains the assignee of record.
  • Family-level verified recordations (from RPX complaint documents in the same campaign; these confirm the standard practice in this family — every patent-in-suit has a recorded inventor-to-Flexiworld assignment):
    • '402 patent — Chang & Liu → Flexiworld, Reel/Frame 028733/0064 (Sony complaint ¶ 51)
    • '811, '072, '178 patents — Chang & Liu → Flexiworld, Reel/Frame 042385/0202 (Sony/LG complaints)
    • '596 patent — Chang & Liu → Flexiworld, Reel/Frame 039816/0200 (LG complaint ¶ 66)
  • The '773 was one of the 15 patents asserted in Flexiworld v. Sony (2:23-cv-00616, E.D. Tex.), and the complaint alleges recorded assignments for each patent-in-suit — so a recorded Chang & Liu → Flexiworld assignment for '773 almost certainly exists on a reel in this same set, but I did not capture its specific reel/frame and will not guess it.

Recorded assignments for '773, so far as verifiable:

  • ~2018–2020 (executed) / recorded pre-issue — Reel/Frame: NOT VERIFIED (family pattern: 028733/0064, 039816/0200, 042385/0202)
    • Conveyance: Assignment (inventor-to-company)
    • Assignor: William Ho Chang; Christina Ying Liu
    • Assignee: Flexiworld Technologies Inc.
    • Correspondent: Not captured (the Assignment Center correspondent for the Flexiworld family could not be retrieved in this session; flagging as unknown rather than inventing a name)
    • Context: Standard inventor assignment to the founders' company at/around prosecution.
  • No post-issuance assignments found. No transfers to LLCs, no security agreements, no mergers, no name changes surfaced in any searched source.

Bottom line for this section: The record I can verify shows a single-owner chain — inventors → Flexiworld Technologies Inc. — with no post-issuance transfer and no shell-LLC chain. The USPTO Assignment Center should be checked directly (search "10866773" at https://assignmentcenter.uspto.gov/) to confirm the exact reel/frame and correspondent, which is the one piece I could not pull.


Timeline diagram

timeline
    title Ownership of US 10866773
    2000 : Priority date claimed
    2001 : First priority application filed
    2018 : Continuation filed
    2020 : Patent issued to Flexiworld
    2022 : Patent term expired
    2023 : Asserted against Sony in Texas
    2025 : Sony case dismissed with prejudice

NPE / troll-pattern signals

  1. Shell-entity transferNot present as a mechanism (no transfer from an operating assignee to a licensing LLC; Flexiworld is the original assignee throughout). Present in substance: the owner is a licensing-only entity with no products in commerce — admitted in its own complaint (Sony Am. Compl. ¶ 100, quoted above) and a patent-marketing website. Concrete evidence, not naming-based inference. Cite: Sony Am. Compl. ¶ 100 (RPX doc 15143102 / 15717164); flexiworld.com.

  2. Known asserter in the chainPresent. Flexiworld Technologies Inc. is a high-frequency plaintiff tracked by RPX (litigation.rpxcorp.com), the Stanford NPE Litigation Database (npe.law.stanford.edu lists US10866773 under Flexiworld v. Sony), and its patents are indexed in the Unified Patents portal (portal.unifiedpatents.com lists "Flexiworld Tech Inc" as assignee of sibling family patents). Campaign targets include Samsung, Roku, Sony, LG, HP, and TCL. This is a textbook tracked-NPE profile.

  3. Repeat correspondent across the chainUnclear. With only a single link in the chain (inventors → Flexiworld) and the correspondent for that recordation not retrievable in this session, there is no recurrence to demonstrate. Flagged as unverified, not a finding.

  4. Cascading transfersNot present. No chained LLC transfers; the chain is one hop (inventors → Flexiworld). The only asset movement in the family is the reverse direction (Flexiworld selling the '541 patent and '958 application to Samsung circa 2013, per Flexiworld v. Roku, W.D. Wash.) — the opposite of an NPE cascade.

  5. Pre-litigation transferNot present. No assignment timed within 6 months of the Dec. 2023 Sony filing; Flexiworld has owned the patent continuously since issuance (2020).

  6. Bankruptcy fire-saleNot present. No Chapter 7/11 found for Flexiworld; patent not sold in any receivership.

  7. PrivateeringNot present / no evidence. Flexiworld asserts in its own name for its own account; no SEC- or EFF-surfaced arrangement showing it asserts on behalf of an operating company. (The Samsung sale is a divestiture, not privateering.)

  8. Defensive aggregator (anti-NPE)Not present. Chain terminates at the asserting entity, not RPX, AST, LOT, Unified Patents, or OIN. Notably, the patent is expired (adjusted expiration 2022-02-28; status "Expired – Fee Related"), so it is a damages-only monetization asset — and it was nonetheless asserted in 2023 for pre-expiration damages.


Verdict

NPE — high confidence.

Two strong, independently sourced signals drive this: (1) the owner is a non-practicing licensing entity — Flexiworld admitted in its own Sony complaint that it has never made, sold, or imported a product practicing these patents (Am. Compl. ¶ 100), and (2) Flexiworld is a known high-frequency asserter tracked by RPX, the Stanford NPE Litigation Database, and Unified Patents, with suits against Samsung, Roku, Sony, LG, HP, and TCL. The ownership chain itself is clean (inventors → Flexiworld, no post-issuance transfers and no verified reel/frame for the '773 beyond the family pattern of 028733/0064, 039816/0200, and 042385/0202), so this is an NPE operating as the original assignee rather than a shell-LLC cascade — but the monetization-only conduct and litigation history are unambiguous. The '773-specific reel/frame and correspondent remain unverified and should be confirmed at the USPTO Assignment Center: https://assignmentcenter.uspto.gov/ (search patent number 10866773).

Generated 8/28/2026, 6:49:31 PM

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

✓ Generated

The Justia page appears to contain the examiner-cited reference list. Let me pull the full list and cross-check with Google Patents' "References Cited" section.

I need the complete citation list. Let me fetch the Justia page and the Google Patents citations sections directly.

I've reached the limit of my search budget for this task, so I'll now synthesize the available data with clear caveats about what could and could not be verified. Note up front: the USPTO full-text front-page citation list and verbatim claims for US10866773B2 were not fully retrievable within my search limits, so what follows is based on (a) the partial "Patent Citations" list surfaced from Justia (patents.justia.com/patent/10866773), (b) the "Other References" (non-patent literature) surfaced from the same source, and (c) the Google Patents family/citation data. I will flag every item I could not independently verify.


Prior-Art Analysis — US Patent 10,866,773 B2

Patent: US10866773B2 — "Information apparatus for playing digital content that is received from a digital content service provided over the internet"
Assignee: Flexiworld Technologies, Inc. | Inventors: William Ho Chang; Christina Ying Liu
Application: US 16/215,506, filed 2018-12-10 | Granted: 2020-12-15
Claimed priority: 2000-11-01 (provisional lineage via US 10/016,223 (filed 2001-11-01 → US7941541B2) and US 10/053,765 (filed 2002-01-18 → US9836257B2))

Critical § 102 framing. Because the patent carries a 2000-11-01 priority date but was filed as a continuation on 2018-12-10, it was examined under the AIA (effective-filing-date regime). Under AIA § 102(a)(2), a U.S. patent or published application is prior art if its effective filing date precedes the claimed invention's effective filing date — regardless of publication date — unless the art is by the same inventor or commonly owned (AIA § 102(b)(2)(C), analogous to pre-AIA § 103(c)). This is decisive for this family: a large share of the examiner-cited references are Flexiworld's own later-issued family patents and Flexiworld reissues (Chang/Liu), which are presumptively excluded as § 102 prior art by common ownership/inventorship — though they can still be relevant to § 103 obviousness analysis and to the validity of the priority claim itself. The third-party patents and non-patent literature are therefore the realistic § 102 anticipation candidates.


A. Most relevant prior art (short answer)

  1. Third-party wireless-printing / mobile-output patents cited by the examiner (e.g., US7460853, US7477890, US7478403, US7554684, US7571142, US7593123, US7644039, US7646503, US7650145, US7660460, US7668535, US7685244, US7688467, US7697467, US7712125, US7743133, US7761541, US7890581, US7908401, US7929950, US7949223, US7986298, US8086961, and reissue RE40910) — published 2008–2011, mostly pre-dating the 2018 filing but post-dating the 2000 priority date. Whether they are § 102 prior art at all turns on whether the 2000-11-01 priority claim is credited for all claims; if the priority claim holds, most of these are not § 102(a)(1)/(2) prior art for the 2000-dated claims (they are not published applications with earlier effective filing dates than 2000-11-01 either, except for the Flexiworld-owned family).
  2. Flexiworld family patents (same owner/inventors) — the closest technical disclosures of the pervasive-output architecture, but excluded from § 102 by common ownership (AIA § 102(b)(2)(C)).
  3. Non-patent literature — WiSAP (1998), Salutation-to-Bluetooth SDP mapping (1999), SLP comparison (2000), and the SIGDOC '93 online print-service paper — these genuinely pre-date the 2000 priority date and are the strongest § 102(a)(1) candidates for the service-discovery and wireless-output concepts.

B. Examiner-cited U.S. patent documents (partial list as retrieved)

The Justia front-page list retrieved begins at US7460853 and runs in ascending date order; the list below is what was captured before truncation. Full citation data (titles, filing dates) could not be verified for every entry — I have marked each accordingly.

B-1. Flexiworld family / commonly-owned references (same-inventor or same-assignee — excluded from § 102 by AIA § 102(b)(2)(C), but highly relevant to § 103 and to priority-chain validity)

Citation Pub. date Description § 102 anticipation
US7609402B2 — Chang et al. (Flexiworld) 2009-10-27 Flexiworld pervasive-output family patent; disclosed wireless output/information-apparatus architecture (title not independently verified in my searches). Not § 102 art against '773 if common ownership applies; potential § 103 reference.
US7805720B2 — Chang et al. (Flexiworld) 2010-09-28 Flexiworld family patent (pervasive output / wireless content delivery). Title not verified. Same caveat as above.
US7941541B2 — Chang et al. (Flexiworld) 2011-05-10 This is the granted parent (US 10/016,223, filed 2001-11-01) in the '773 priority chain — the disclosure the '773 continuation builds on. Not § 102 art (same family/ownership); the closest technical disclosure to the '773 claims.
US7944577B2 — Chang et al. (Flexiworld) 2011-05-17 "Output Controller for Mobile and Pervasive Digital Content Output" (priority 2000-11-19 per Unified Patents portal). Not § 102 art (common ownership); strong § 103 reference.
US7953818B2 — Chang et al. (Flexiworld) 2011-05-31 Flexiworld family patent (pervasive output / output-device discovery). Title not verified. Same caveat as above.
RE42725E — Chang et al. (Flexiworld) 2011-09-20 Reissue of a Flexiworld family patent. Same caveat as above.
RE41416, RE41487, RE41532, RE41689, RE41882, RE42828 — Liu et al. (Flexiworld) 2010-07-06 through 2011-10-11 Reissues of Flexiworld patents by co-inventor Christina Ying Liu (RE41532 identified as "Apparatus, Methods and Systems for Anonymous Communication"; RE41882 as "Communication Between Parties Over the Internet Without Revealing Personal or Security Information"). Same caveat as above.

§ 102 note for B-1: All of these share inventors/assignee with '773. Under AIA § 102(b)(2)(C), subject matter in commonly-owned applications/patents with an effective filing date before the '773 claims is disqualified as § 102(a)(2) prior art. They are, however, the most probative disclosures of the pervasive-output system the '773 claims cover and are the natural primary references in any § 103 combination.

B-2. Third-party U.S. patents (genuine § 102 candidates if priority chain fails; § 103 candidates regardless)

Citation Pub. date Brief description (verified vs. unverified) § 102 anticipation
US7460853B2 — Toyoshima 2008-12-02 Wireless-communication related patent (title not verified in my searches). Potentially anticipates claim 1 and independent claims directed to wireless communication/receipt of digital content only if the 2000 priority date is not credited for all claims (pub. date is after 2000-11-01).
US7477890B2 — Narayanaswami (IBM) 2009-01-13 Pervasive/mobile-computing patent (title not verified). Same conditional analysis as above.
US7478403B2 — Allavarpu et al. 2009-01-13 Digital-content distribution/output patent (title not verified). Same conditional analysis.
US7554684B2 — Senoo et al. 2009-06-30 Likely printing/output-system patent (title not verified). Same conditional analysis.
US7571142B2 — Flitcroft et al. 2009-08-04 Patent relating to wireless transactions/content (title not verified). Same conditional analysis.
RE40910E — Aoki et al. 2009-09-08 Reissue; likely output/printing-related (title not verified). Same conditional analysis.
US7593123B2 — Sugahara 2009-09-22 Likely printing-system patent (title not verified). Same conditional analysis.
US7644039B2 — Magee et al. 2010-01-05 Likely wireless-printing patent (title not verified). Same conditional analysis.
US7646503B2 — Silverbrook et al. 2010-01-12 Mobile-device printing patent (Silverbrook Research; title "printing a business card using a mobile device" recalled but not verified in searches). Same conditional analysis; if it discloses a mobile device receiving content and printing it wirelessly, it maps to the independent-claim combination.
US7650145B2 — Ukita et al. 2010-01-19 Title not verified. Same conditional analysis.
US7660460B2 — Wu et al. 2010-02-09 Title not verified. Same conditional analysis.
US7668535B2 — Conneely et al. 2010-02-23 Title not verified. Same conditional analysis.
US7685244B2 — Mousseau et al. 2010-03-23 Wireless data access / push technology patent (RIM lineage recalled; title not verified in searches). Same conditional analysis.
US7688467B2 — Enmei 2010-03-30 Title not verified. Same conditional analysis.
US7697467B2 — Kubler et al. 2010-04-13 Title not verified. Same conditional analysis.
US7712125B2 — Herigstad et al. 2010-05-04 Content scheduling/delivery patent (title not verified). Same conditional analysis.
US7743133B2 — Motoyama et al. 2010-06-22 Networked-device management patent (Ricoh lineage recalled; title not verified). Same conditional analysis.
US7761541B2 — Morley et al. 2010-07-20 Title not verified. Same conditional analysis.
US7890581B2 — Rao et al. 2011-02-15 Title not verified. Same conditional analysis.
US7908401B2 — Chang 2011-03-15 Flexiworld family (inventor Chang) — see B-1 caveats; listed here because assignee/ownership could not be re-confirmed within search limits. Common-ownership exclusion likely applies.
US7929950B2 — Rao et al. 2011-04-19 Title not verified. Same conditional analysis as third-party entries.
US7949223B2 — Shiohara 2011-05-24 Likely printing-related (title not verified). Same conditional analysis.
US7986298B2 — Dulaney et al. 2011-07-26 Title not verified. Same conditional analysis.
US8086961B2 — Saeki et al. 2011-12-27 Title not verified. Same conditional analysis.

§ 102 note for B-2: Every third-party patent above published 2008–2011, i.e., after the claimed 2000-11-01 priority date. Under AIA § 102(a)(1) (publication before the effective filing date), none is prior art if the 2000 priority date is validly claimed for all claims. Under AIA § 102(a)(2), none has an effective filing date before 2000-11-01 (they were filed later). Therefore none of the B-2 references anticipates the claims if the priority chain holds — they would, however, be available as § 103 secondary references and would become § 102(a)(1) anticipatory references only if the priority claim were rejected for the relevant claims (e.g., lack of written-description support in the 2000/2001/2002 disclosures for later-added claim limitations).


C. Non-patent literature ("Other References" — strongest § 102(a)(1) candidates because they genuinely pre-date 2000-11-01)

Reference Date Description § 102 analysis
House et al., "An on-line communication print service for the demanding client," Proc. 11th Annual Int'l Conf. on Systems Documentation (SIGDOC '93), Waterloo, Ontario, Oct. 5–8, 1993, pp. 135–139 1993-10-05 Discloses an on-line/network print service architecture. Pre-dates 2000-11-01 → genuine § 102(a)(1) prior art. Potentially anticipates the network-output-service elements of claim 1 and related independent claims (receiving content for output via a network service), if the claims read on that architecture.
Microsoft® NT™ screenshots, Figures 5–7 1998 Print/user-interface screenshots showing printer setup/printing UI. Pre-dates priority date → § 102(a)(1) art; weak standalone anticipation, useful as § 103 evidence of conventional print-UI features.
Bisdikian et al., "WiSAP: a wireless personal access network for handheld computing devices," IEEE Personal Communications, vol. 5, no. 6, pp. 18–25 1998-12 Wireless personal-access network enabling handheld devices to access services — directly relevant to the mobile-wireless-to-output-device concept. Pre-dates priority date → § 102(a)(1) art. Potentially anticipates the wireless-communication-unit and service-access elements of the independent claims.
Microsoft® Word 2000 screenshots, Figures 1–4 1999 Print-dialog/UI screenshots. Pre-dates priority date → § 102(a)(1) art; secondary/§ 103 evidence.
Miller, Brent, "Mapping Salutation Architecture APIs to Bluetooth Service Discovery Layer," Version 1.0 1999-07-01 Maps Salutation service-discovery APIs onto Bluetooth SDP — directly relevant to device/service-discovery claims. Pre-dates priority date → § 102(a)(1) art. Potentially anticipates discovery-related dependent claims.
Bettstetter et al., "A Comparison of Service Discovery Protocols and Implementation of the Service Location Protocol," Proc. 6th EUNICE Open European Summer School, Sep. 13–15, 2000 2000-09-13 Compares service-discovery protocols (SLP, etc.) — relevant to output-device discovery. Publication two months before 2000-11-01 → § 102(a)(1) art (assuming the invention date is not earlier). Potentially anticipates discovery-related claim elements.
U.S. Provisional Applications 60/224,701; 60/227,878; 60/243,654; 60/208,967; 60/220,047; 60/239,320 2000–2001 Flexiworld's own provisional applications (the '773 priority documents and family provisionals). Not third-party prior art; these are the priority basis. Relevant only to priority-chain and written-description analysis.
USPTO International Search Report (PCT/US01/43796, dated 2002-03-20) and International Preliminary Examination Report (2003-01-15); multiple USPTO Office Actions for family applications (09/992,198; 09/992,417; 09/992,420; 09/992,183; 09/992,413; 11/933,031; 11/933,005; 12/204,689; 12/204,695; 12/684,869) 2002–2011 File-history documents; the Office Actions identify the examiner's own prior-art positions in the family prosecution. Not statutory prior art; useful for understanding which art the examiner relied on.

D. Which claims are potentially anticipated — honest assessment

I must state plainly: the verbatim granted claim text for US10866773B2 was not retrievable within my search budget (the Google Patents fetch in your original materials truncates before the claims section, and I could not pull a USPTO full-text copy). Therefore I cannot map references to specific claim numbers with the precision the task requests, and I will not fabricate claim numbers.

What can be inferred about claim scope from the Google Patents term-frequency metadata for the claims section of '773 (from the fetched page: "claims ... response 8, description 150, communication 119, processing 76, memory 37, transmission 19, decompression 12, conversion 10, rendering 8, correction 6, segmentation 4, coupling 3, smoothing 2, initiating 1") — the claims are apparatus claims heavily directed to: communication circuitry (wireless), processing, memory, transmission of digital content, and conversion/rendering/decompression operations. This is fully consistent with the title: an information apparatus that receives digital content from an internet-based digital content service and plays/transmits it (per the pervasive-output architecture in the specification: client application → server-side conversion → output device).

Provisional claim mapping (to be confirmed against the actual claims):

  • Claim 1 and the other independent apparatus claims (information apparatus with wireless communication unit, receiving digital content from an internet digital content service, playing/outputting the content): the strongest § 102 candidates are the pre-2000 NPL referencesWiSAP (Bisdikian et al., 1998) for the handheld-wireless-service-access concept and House et al. (1993) for the network print-service concept — followed by the Flexiworld family patents (B-1) as the closest disclosures if the common-ownership exclusion were held inapplicable (it generally will not be).
  • Dependent claims directed to service/output-device discovery (Bluetooth/802.11 discovery): Miller (1999) (Salutation→Bluetooth SDP) and Bettstetter et al. (2000) (SLP comparison) are genuine pre-2000 § 102(a)(1) art for those limitations.
  • Dependent claims directed to print/output UI and job setup: the Microsoft NT (1998) and Word 2000 (1999) screenshots are pre-2000 art, though weak as standalone anticipation.
  • The 2008–2011 third-party patents (B-2): cannot anticipate the 2000-priority claims because they post-date the priority date; they become anticipatory only if the priority claim is defeated for particular claims (a real risk for claims whose limitations lack written-description support in the 2000/2001/2002 disclosures — a known pressure point in this Flexiworld continuation campaign). In that scenario, each B-2 patent would be evaluated element-by-element against the specific independent and dependent claims; I could not perform that element-by-element comparison without the claims and full texts.

E. Confidence statements and verification recommendations

  • Verified: Patent number US10866773B2, title, inventors, assignee, application/grant/priority dates; the existence and dates of the Justia-listed citations and NPL items reproduced above; family relationships (US7941541B2 ← US 10/016,223; US9836257B2 ← US 10/053,765); AIA § 102(b)(2)(C) common-ownership framework.
  • Not verified / requires follow-up: (1) complete front-page citation list — the Justia capture may be partial and I could not confirm whether additional U.S. patents, foreign patent documents (e.g., the CN101834892 and CN101825996 entries that appeared in family data), or further NPL appear on the USPTO front page; (2) verbatim claim text and claim numbering; (3) titles/descriptions of most B-2 patents — I did not have search budget to confirm each; treat their descriptions as unverified; (4) whether the priority claim was expressly credited in the final Notice of Allowance.
  • Recommended verification sources: USPTO Patent Public Search / Patent Center (full-text PDF of US10866773B2 for the front-page "References Cited" and the claims); Google Patents "Citations" tab (https://patents.google.com/patent/US10866773B2/en); Justia (https://patents.justia.com/patent/10866773) for the complete citation table; USPTO PAIR/Patent Center file wrapper for the final Office Action and Notice of Allowance to confirm which references were applied and whether priority was credited.

Bottom line: The most relevant prior art for US10866773 is (1) the pre-2000 non-patent literature — WiSAP (1998), Salutation/Bluetooth SDP mapping (1999), SLP comparison (2000), and the SIGDOC '93 print-service paper — which are the only genuine § 102(a)(1) anticipatory references identified, and (2) the Flexiworld family patents (US7609402, US7805720, US7941541, US7944577, US7953818, RE42725, and the Liu reissues), which are the closest technical disclosures but are excluded from § 102 by common ownership and serve primarily as § 103 references. The 2008–2011 third-party patents are conditional § 102 candidates that only become anticipatory if the 2000 priority claim is not credited for the claims at issue.

Generated 8/28/2026, 6:50:08 PM

Obviousness

Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.

✓ Generated

I'll try to close the biggest gap in the prior-art record — the verbatim claim language — and to verify a few of the named references before building the § 103 combinations.

The claim 1 text is now available (via Flexiworld's own patent page). Let me pull the remaining claims and probe for pre-2000 art on the capture→upload→server-return loop, which is the heart of claim 1.

Obviousness Analysis under 35 U.S.C. § 103 — US 10,866,773 B2

Patent: US10866773B2 — "Information apparatus for playing digital content that is received from a digital content service provided over the internet"
Inventors: William Ho Chang; Christina Ying Liu | Assignee: Flexiworld Technologies, Inc.
App. 16/215,506 filed 2018-12-10; granted 2020-12-15; claimed priority 2000-11-01
Current date of analysis: 2026-04-26


0. What changed since the Prior Art section — and why it matters

⚠️ Contradiction / material update. The Prior Art section stated that the verbatim claims were unavailable and inferred claim scope from term-frequency metadata ("wireless communication… conversion, rendering, decompression") plus the specification's print-centric pervasive-output story. That inference is now partly superseded. Flexiworld's own patent page reproduces claim 1 verbatim (http://www.flexiworld.com/patent/us-[10866773](/patent/10866773)/), and it is not a printer-driver claim. Claim 1 is a camera → authenticated internet service → display round-trip claim:

Claim 1 (as reproduced by the patent owner): An information apparatus for receiving output data from one or more servers over a network, the network includes the Internet, the output data includes image content, picture content, audio content, or video content… comprising: one or more processors; memory or storage; software or firmware…; a digital capturing device for capturing images or for capturing video; a display screen that is at least an output device…; one or more wireless communication units that include wireless communication circuitry… including wireless local area network communication; wherein upon execution of the software or firmware… the information apparatus: (1) couples… to a wireless local area network; (2) establishes… a wireless connection to the one or more servers over the network that includes the Internet; (3) wirelessly accesses… services… based, at least in part, on the information apparatus having provided appropriate authentication information or security information…; (4) captures… digital content… picture, image or video…; (5) obtains… a content object, the content object includes at least part of the digital content captured in (4); (6) wirelessly transmits… the content object… to the one or more servers… based, at least in part, on… authentication…; (7) wirelessly receives… output data… in response to the information apparatus having wirelessly transmitted the content object…; and (8) renders or outputs or plays, at the display screen, at least part of the output data… image content, picture content, or video content.
(Source: flexiworld.com/patent/us-10866773/, retrieved for this analysis; claim reads consistently with the Google Patents term-frequency metadata — "coupling," "rendering," "memory," "processing," "transmission." USPTO/Google Patents claims-tab confirmation of the full claim set is still recommended; the reproduction is from the patent owner and I have not independently confirmed claims 2–N.)

Three consequences that reshape the § 103 analysis:

  1. The print/printing art is off-target for claim 1. House & Quon (SIGDOC '93), Silverbrook's mobile-printing work, and the LAN print-server art speak to sending a document to a remote printer. Claim 1 never requires any output device other than the apparatus's own display screen, and never requires rasterization, printer languages, or device-dependent output data. The closest art for claim 1 is therefore networked-camera and streaming-media client art, not wireless-printing art.
  2. The claim's bottleneck is element (4)/(5) — the integrated digital capturing device and the captured-content object, plus element (3)'s authentication gating. Those are the limitations where the captured pre-2000 record is thinnest.
  3. "In response to" is a trigger, not a derivation. Element (7) requires only that output data be received in response to the upload — it does not require the output data to be derived from the content object. That is a weak causal limitation and materially broadens the field of art that can meet (7).

⚠️ Second contradiction flagged (prior-art section, § B-2 note). The Prior Art section reasoned that because the 2008–2011 third-party cited patents "published after 2000-11-01," they "cannot anticipate the 2000-priority claims." That is wrong for § 102(a)(2). The '773 was examined in the AIA regime: a U.S. patent is prior art under § 102(a)(2) as of its effective filing date, not its issue date. A reference that issued in 2008–2011 but was filed in 1998–1999 is § 102(a)(2) prior art against a 2000-11-01 claim. The controlling question for every B-2 reference is its earliest effective filing date, which the Prior Art section did not capture. This is the single highest-value verification step in the whole analysis (see § 8).

⚠️ Third, minor. The Litigation summary cites the Sony case as "filed 2019-12-19 — per RPX… filed 12/19/2023." The docket number (2:23-cv-00616) is consistent only with 2023-12-19; treat 2019-12-19 as a typographical error in the source.


1. Threshold question: what is the claim's effective filing date? Two regimes, two different analyses

Regime A — priority credited Regime B — priority not credited for claim 1
Effective filing date 2000-11-01 (via prov. 60/224,701 et al. → US 10/016,223, 2001-11-01 → US 10/053,765, 2002-01-18) 2018-12-10 (actual filing of 16/215,506)
Prior art universe Only art publicly available / effectively filed before 2000-11-01 Everything before 2018-12-10
Flexiworld family patents Not prior art (same family; and commonly owned ⇒ § 102(b)(2)(C) disqualifies as § 102(a)(2) art) Become § 102(a)(1) prior art — the ~2002–2018 family publications issued long before 2018-12-10, and the § 102(b)(1)(A) inventor-disclosure grace period (1 year) cannot reach back 16 years. Common ownership is no shelter from § 102(a)(1).
Realistic outcome for claim 1 Contestable; depends on the camera-upload art Claim 1 falls. A decade of smartphone camera + cloud/photo-service apps is squarely on point.

The threshold attack scores the whole case. Claim 1's core loop — integrated camera captures → authenticated wireless upload to an internet service → output data returned → rendered on the apparatus display — is the kind of subject matter one expects to find in the 2000/2001/2002 priority disclosures of a family whose specification, as fetched, is overwhelmingly about printing documents to printers (device drivers, printer input space, raster image processing, output controllers, print jobs). If the parent chain does not provide § 112(a) written description for the camera–upload–service-return–display loop (as opposed to document→printer output), the priority claim fails for claim 1 and Regime B governs. This is a § 112/priority argument that converts directly into a § 102/§ 103 winner, and it is the strongest single line of attack available. Verification: compare claim 1 element-by-element against the disclosure of US 10/016,223 (US7941541B2) and US 10/053,765 (US9836257B2) and the six provisionals.


2. Claim 1, element by element, with the record's best candidates

# Claim 1 limitation (abridged) Best candidate(s) in the captured record Assessment
C1 Apparatus receives output data (image/picture/audio/video) from server(s) over a network including the Internet House & Quon '93 (remote print service returning/rendering a packaged job); streaming-media clients (RealAudio-era, 1995–1999) for the audio variant Met for the service concept; the "image/picture/video returned to the client for display" nuance needs the camera art
C2 processors; memory/storage; software or firmware Any general-purpose computing device of the era; WiSAP's handheld platform ("consumer-oriented portable wireless communication system") Met; a programmed general-purpose device is the expected implementation (KSR: software/firmware realization of a known function is obvious)
C3 digital capturing device for images/video (integral to the apparatus) Thin in the captured record. Candidate: Seiko Epson/It-相关 cited refs and camera-bearing handhelds — see § 3, Combination B Primary vulnerability point. Needs a pre-2000 integrated camera handheld reference
C4 display screen as output device Universal in handhelds of the era (palmtop/PDA/smart-phone art) Met
C5 one or more wireless communication units incl. WLAN circuitry Bisdikian et al., WiSAP (IEEE Pers. Comm. 5(6), 1998) — short-range wireless, "wireless mobile personal access networks," information appliances Met for wireless handheld access; WLAN-specific (802.11) art existed commercially from 1997–1999 (verify specific reference)
(1) couples to a WLAN WiSAP; 802.11 product art (1997–1999) Met
(2) establishes wireless connection to server(s) over the Internet WiSAP (service access via wireless infrastructure); House '93 (remote service reachable over telecom/LAN bridges) Met in combination
(3) accesses service based on authentication/security information **US6236971 (Stefik et al., "…digital works using digital tickets")** and **US6252964 (Wasilewski et al.)** — both appear in the examiner-cited list at uspto.report/patent/grant/10,866,773 and both trace to mid-1990s Xerox/ContentGuard and Scientific-Atlanta filings; also Miller 1999 (Salutation→Bluetooth SDP security/registration) Met. ⚠️ Effective filing dates to be verified, but both families originate pre-1996/1998
(4) captures picture/image/video Same gap as C3 Vulnerability point
(5) obtains a content object including at least part of the captured content House '93 ("packaged print job": file + job ticket attached and packaged); packetization of media for transmission Met (the "content object" is merely a packaging/pointer construct)
(6) wirelessly transmits the content object to server(s), gated on authentication WiSAP + House '93 + Stefik/Wasilewski authentication Met in combination
(7) wirelessly receives output data in response to the transmission Streaming/media client art; House '93 remote-service model Met. Note the "in response to" trigger-not-derivation weakness
(8) renders/outputs/plays at the display screen Universal client-rendering art of the era Met

Net read: the only hard element is C3/(4) — the integrated digital capturing device feeding a network round-trip. Everything else is met by combinations of well-known pre-2000 elements. That is exactly the KSR posture: a claim that recites the aggregation of known components (camera + WLAN + screen + server client software) performing their known functions.


3. Obviousness combinations

Combination 1 — WiSAP + House & Quon + Miller (and/or Bettstetter) + Stefik/Wasilewski

[Applicable under Regime A; strong on C1, C2, C4, C5, (1), (2), (3), (5), (6), (7), (8); does not reach C3/(4)]

  • **Primary — Bisdikian et al., "WiSAP: a wireless personal access network for handheld computing devices," IEEE Personal Communications 5(6):18–25 (Dec. 1998)**, DOI 10.1109/98.736474 (https://researcher.watson.ibm.com/publications/wisap-a-wireless-personal-access-network-for-handheld-computing-devices). Expressly discloses handheld computing devices using short-range wireless networks, positioned as "enablers for ubiquitous, low-cost, low-complexity, small-sized information appliances," where those appliances are "interaction tools between humans and computer-driven services and applications." This is the handheld-wireless-service-access teaching — C5, (1), (2), (3).
  • Secondary — House & Quon, "An on-line communication print service for the demanding client," SIGDOC '93, pp. 135–139, DOI 10.1145/166025.166049 (https://dl.acm.org/doi/epdf/10.1145/166025.166049). Expressly discloses: client software compatible with a remote service; the service produces a document-creation flow where the file is packaged with a job ticket attached and transferred "via the network bridge to the remote location"; transmission "over telephone lines (analog, Switch 56, ISDN etc.) or via LAN to LAN wireless radio transmission"; and the remote service producing the finished output. This is the content object → remote processing service → output teaching — C1, (5), (6), (7), (8) and a wireless link to boot.
  • Tertiary — Miller, "Mapping Salutation Architecture APIs to Bluetooth Service Discovery Layer" v1.0 (July 1999), and *Bettstetter et al., "A Comparison of Service Discovery Protocols and Implementation of the Service Location Protocol" (Sept. 13–15, 2000)* — service discovery and service-layer registration/security, supporting (3) and the selection of a specific service to which content is sent.
  • *Authentication — US6236971 (Stefik et al.)* and **US6252964 (Wasilewski et al.)**, both in the cited list; both teach gating access to digital content/works on authentication, tickets, or authorization. Supports (3) and the authentication conditioning in (6).

Motivation to combine (explicit): all four references address the same problem from the same direction — a resource-constrained portable device that cannot locally do everything, so it hands work to a network service. WiSAP supplies the handheld + short-range wireless + service-access substrate and states the goal of small information appliances interoperating with remote computer-driven services. House supplies the proven architectural pattern for outsourcing output to a remote service, including the job-ticket/packaged-object construct and even the wireless LAN-to-LAN link. Miller/Bettstetter supply the then-standard mechanism (Salutation/SLP) by which such a device finds the service. Stefik/Wasilewski supply the then-standard mechanism for gating access to a subscription/conditional-access service. Combining them requires no change in the respective references' principles of operation and yields the predictable aggregate of their known functions — the KSR "familiar elements according to known methods… predictable results" formulation, plus the recognized design incentive to offload processing from a handheld whose memory/bandwidth the '773 specification itself concedes are limited ("bandwidth is a valuable resource in the transmission link… such as in some wireless data network").

Weakness: this combination does not clearly teach the digital capturing device of C3 or the capture step (4). WiSAP's "information appliances," read generously, could include imaging devices, but I do not have a passage from the record establishing it. On the captured record, Combination 1 is an obviousness case for claims that omit the camera, and a § 103 case for claim 1 only if camera art is added (Combination 2) or the priority claim is defeated (Regime B).


Combination 2 — Combination 1 + pre-2000 integrated-camera / online-photo-service art

[The combination that reaches all of claim 1; viability depends on a camera reference that I could not verify within the record]

  • Added element: a pre-2000 handheld or mobile device with an integral digital capturing device that captures an image and transmits it wirelessly to a network destination, in combination with a network photo/media service that stores or processes images and returns content to the client.
  • Candidates to verify (flagged as recalled, not verified in this session, and all outside the captured record):
    • Kyocera Visual Phone VP-210 — a mobile phone with an integrated camera and image-transmission capability, announced May 1999 (i.e., before the 2000-11-01 priority date). ⚠️ Recall-confidence only; the announcement/launch date and its transmission architecture must be documented before use.
    • Sharp J-SH04 — first mass-market integrated camera phone; ⚠️ launched November 2000, i.e., after the 2000-11-01 priority date. Usable only if the invention date is later than the provisional basis, or as proof of the state of the art / no long-felt need. Do not lead with it.
    • Kodak/AOL "You've Got Pictures" (1998) and the online photo services launched in 1999 (Ofoto, Shutterfly) — network services that receive user images and return/store/process them. ⚠️ Verify dates and architecture.
    • Examiner-cited references with pre-2000 effective filing dates — a filing-date triage of the cited list (see § 8) is likely to surface at least one integrated-camera-with-network-transmission reference; several cited entries carry 2001–2003 issue dates that are consistent with 1997–2000 filings.
  • Motivation to combine (explicit): (i) the captured image is by far the largest object a handheld of 1999–2000 could generate, and on-device storage, display, and processing were the acknowledged bottlenecks — the same bottleneck the '773 specification describes ("limited processing power, display screen size and memory space"); (ii) server-side processing of images (storage, sharing, printing, enhancement) was an existing commercial model in 1998–1999; (iii) wireless transmission of a captured image to a service requires nothing more than the wireless data connection WiSAP already provides plus the client-service architecture House already describes; (iv) predictable results: an image uploaded and returned for display behaves exactly as the reference components predict. No reference teaches away — none of these references disparages network offload of captured media.

This is the combination to plead. It is the one that maps onto all eight steps of claim 1.


Combination 3 — Combination 2 + streaming/media-client art, for the audio variant

Claim 1's "output data" expressly includes audio content, and the specification's sister filings cover subscribed audio services. Pre-2000 streaming-audio clients (RealAudio/RealPlayer, mid-1990s onward: authenticated connection to a server, receipt of an audio stream, and local playback) map onto (1), (2), (3), (7), and (8) with unusual directness. Motivation: combining a known streaming-media client with a handheld's wireless stack is the routine application of a known technique to a known device, giving predictable results.


Combination 4 — The Regime B combination (priority defeated): the modern smartphone stack itself

[If the 2000-11-01 priority claim fails for claim 1, this ends the inquiry]

With an effective filing date of 2018-12-10:

  • § 102(a)(1) art includes any smartphone camera application that uploads authenticated content to an internet service and displays returned content — e.g., first-party cloud photo services and third-party photo/social applications in commercial use from roughly 2004–2017 — as well as the Flexiworld family's own publications and patents issued 2002–2018 (numerous; see the family listing at flexiworld.com/patents and the sibling table at patents.google.com/patent/US10606535B2). Common ownership does not save them, because § 102(b)(2)(C) applies only to § 102(a)(2) art, and § 102(b)(1)(A)'s one-year grace period cannot reach documents published 16 years earlier.
  • Under that regime, claim 1 is not merely obvious — large parts of it are anticipated, and the § 103 case becomes trivial (a general-purpose smartphone performing WLAN coupling, authenticated internet access, camera capture, upload, and display of returned content, with each limitation performed by a known component doing exactly what it was designed to do).

Tactical point: the priority attack (§ 1) and Combination 4 are the same argument in two forms. Run them together: move for a priority/written-description determination, then argue that under the resulting effective filing date the claim is at minimum obvious and likely anticipated by the industry's ordinary smartphone operation.


4. Why a POSITA would have combined — the affirmative motivation record

For each § 103 combination above, the motivation testimony should be built on these five pillars:

  1. Same field, same problem, same solution direction. Every reference in Combinations 1–3 addresses the portable-device-can't-do-everything problem and answers it by offloading to a network service. Combining references that solve the same problem in the same way is the paradigm KSR case.
  2. Recognized design incentive — resource constraints. The '773 specification itself concedes the constraint that supplies the motivation: mobile devices with "limited processing power, display screen size, memory space," and wireless links where "bandwidth is a valuable resource." A POSITA seeking to let a small device handle rich media in 2000 had one mainstream answer: send it to a server.
  3. Predictable results / no change in principle of operation. Each added element operates exactly as it does in its own reference — WiSAP's radio still accesses services, House's client still packages and ships a job, Miller's SDP still discovers services. There is no unpredictable interaction and no disablement.
  4. KSR "familiar elements" aggregation. Claim 1 is, structurally, a camera + a screen + a WLAN radio + client software + a server. On any reasonable 2000-era POSITA definition (a bachelor's-level engineer with two-plus years in mobile/wireless data and internet client-server systems), assembling that set was routine engineering, and the claim's "in response to" causality is satisfied by any service reply — a very low bar.
  5. Industry-wide convergence. By the priority date the industry was visibly converging on exactly this architecture (wireless handhelds + internet services + client-server offload), which is strong objective evidence that the combination was obvious rather than inventive.

5. Anticipation-flavored single-reference arguments (for completeness)

  • House & Quon '93 alone does not anticipate claim 1 — it lacks a handheld, a WLAN, a camera, and a display-screen rendering step. It is a § 103 reference, not a § 102 reference.
  • WiSAP alone does not anticipate claim 1 — it lacks a digital capturing device, does not disclose an internet-hosted service returning content to the handheld for display, and no captured-content object.
  • The Flexiworld family alone (B-1) cannot be § 102 art against '773: same family and commonly owned, so § 102(b)(2)(C) disqualifies it as § 102(a)(2) art in Regime A. It is a § 103 reference and — in Regime B — becomes § 102(a)(1) art.
  • Stefik '971 / Wasilewski '964 alone anticipate only the authentication element, not the claim as a whole.
  • Realistically, no single reference in the captured record anticipates claim 1 in Regime A. The case for invalidity under Regime A is a § 103 case built on Combinations 1–2. In Regime B it becomes a § 102 case against ordinary smartphone operation.

6. Secondary considerations (objective evidence)

  • No nexus. Flexiworld admitted in its own pleading that it has never made, sold, or imported a product practicing the asserted patents (Flexiworld v. Sony, 2:23-cv-00616, Am. Compl. ¶ 100, per RPX). With no commercial embodiment, evidence of success in the smartphone-camera and cloud-media markets attaches to others' products, not the claimed invention, and cannot support a nexus.
  • Licensing revenue is not objective evidence of non-obviousness where it reflects the assertion campaign rather than the merits.
  • Long-felt need cuts the other way here. The need was articulated and being met by multiple independent actors on the eve of the priority date (streaming clients, online photo services, camera-phone announcements), which supports obviousness, not invention.
  • No teaching away exists in any reference of record.
  • Caution: these are generalized; if the patent owner proffers specific praise or copying evidence, it should be tested for nexus and date.

7. Dependent claims (inference, flagged)

The Google Patents claims metadata for '773 shows high-frequency terms decompression (12), conversion (10), rendering (8), correction (6), segmentation (4), smoothing (2), coupling (3), which suggests dependent claims reciting compression/decompression, conversion, rendering, color correction, segmentation, and smoothing operations on the content or output data. All of these are textbook pre-2000 image/audio processing operations, and the motivation to place them at the server rather than on the constrained handheld is expressly supplied by the specification's own bandwidth/memory discussion. Expect any such dependent claims to fall to Combinations 1–3 supplemented by ordinary 1990s image-processing art (JPEG/MPEG-era). I have not verified the dependent claim text and will not attribute specific limitations to specific claim numbers.


8. Confidence, gaps, and the verification queue

High confidence:

  • Claim 1's substance as reproduced by the patent owner (matches term-frequency metadata; internally coherent) — but confirm the full claim set from the Google Patents claims tab or USPTO Patent Public Search before filing anything.
  • The § 102(a)(2) / § 102(b)(2)(C) framework, and that the Flexiworld family is disqualified as § 102(a)(2) art in Regime A but becomes § 102(a)(1) art in Regime B.
  • WiSAP (1998, IEEE Pers. Comm. 5(6):18–25, DOI 10.1109/98.736474). Verified.
  • House & Quon (SIGDOC '93, pp. 135–139, DOI 10.1145/166025.166049), including its "packaged print job," job-ticket, telephone/ISDN/wireless radio LAN-to-LAN transmission disclosures. Verified from the paper text.

Must verify before relying on it:

  1. Effective filing date of every examiner-cited reference — the decisive step, given the corrected § 102(a)(2) analysis. Triage the cited list at uspto.report/patent/grant/10,866,773 (and Google Patents' "Citations"/"Cited By" tabs) down to references whose earliest U.S. filing date precedes 2000-11-01 — e.g., US6389010 (Kubler et al.), US6236971 (Stefik et al.), US6252964 (Wasilewski et al.), US6360252, US6366682, US6215483, US6246486, US6255961, US6263503, US6285357, US6285889, US6396598 (check for image-communication subject matter), US6330611, US7477890 (Narayanaswami, IBM), US7460853 (Toyoshima), US7646503 (Silverbrook) — in each case, filing date, not issue date, controls. Titles and filing dates for these entries are not verified in this session; the uspto.report capture showed issue dates only, and the prior-art section's B-2 titles were largely unverified.
  2. Written-description support for claim 1's camera–upload–display loop in prov. 60/224,701, 60/227,878, 60/243,654, 60/208,967, 60/220,047, 60/239,320 and in US 10/016,223 / US 10/053,765. This single determination decides between Regime A and Regime B.
  3. A pre-2000 integrated-camera wireless-upload reference (non-patent or patent) to supply C3/(4) under Regime A. Suspects: Kyocera VP-210 (announced May 1999); Kodak/AOL "You've Got Pictures" (1998); 1999 online photo services; and the pre-2000-filed subset of the cited references above.
  4. The full claim set and claim count, plus whether any independent claim is directed to output to a separate output device (which would pull the print-centric art back in).

9. Bottom line

  • Claim 1 is not a printing claim; it is a capture-upload-render claim. Primary references should be rebuilt around networked-camera and streaming-client art, not print drivers.
  • Under the claimed 2000-11-01 priority date, the strongest § 103 case is Combination 2: Bisdikian et al., WiSAP (1998) for the handheld/WLAN/service substrate + House & Quon (1993) for the remote-service, packaged-content-object, and even wireless-transmission architecture + Miller (1999) and/or Bettstetter et al. (2000) for service discovery + Stefik '971 and/or Wasilewski '964 for authentication gating + a pre-2000 integrated-camera image-upload reference for elements (4)–(5). Every element except the integrated camera is met by verified, genuinely pre-priority art, and the motivation (resource-constrained handheld outsourcing work to a network service) is supplied partly by the patent's own specification.
  • The stronger play is the priority attack. If claim 1's camera round-trip lacks § 112 support in the 2000–2002 priority chain, the effective filing date becomes 2018-12-10, and claim 1 is anticipated or at minimum plainly obvious over ordinary smartphone camera + cloud service operation — with the twist that Flexiworld's own family publications then become § 102(a)(1) prior art against it, because common ownership defeats only § 102(a)(2) art, not public disclosures.
  • Practical posture: this is an expired patent ("Expired – Fee Related," adjusted expiration 2022-02-28 per Google Patents), so § 103 validity work is defensive and damages are limited to pre-expiration conduct. Nevertheless, invalidity is the durable defense, and the priority/§ 112 argument plus Combinations 2–4 give a coherent, well-grounded invalidity theory rather than a paper one.

Sourcing note: I have not fabricated any claim numbers, reference numbers, titles, or dates. Claim 1 is reproduced from the patent owner's own website and is flagged as owner-sourced; WiSAP and House & Quon are verified from publisher/repository records; Stefik '971, Wasilewski '964, and all other cited references are flagged as unverified as to title and effective filing date and require confirmation in USPTO Patent Public Search or the Google Patents citations tabs before use.

Generated 9/15/2026, 4:48:55 AM

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