Invalidity dossier
US 10992953B2
Added 10/28/2026, 12:01:08 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
US10992953B2 — Patent Overview
Title: Moving picture coding method, moving picture coding apparatus, moving picture decoding method, and moving picture decoding apparatus
Patent number: US10992953B2 (application US17/012,791; pre-grant publication US20200404322A1, published 2020-12-24)
Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu, Kengo Terada
Assignee: Tagivan II LLC (listed as both original and current assignee)
Key dates: Priority date 2011-11-02 (noted as an assumption); filing date 2020-09-04; grant/publication date 2021-04-27; anticipated expiration 2032-11-01. Legal status is listed as "Active," and the record notes that the family has litigation, but the excerpt provides no litigation details.
Purpose (inferred from classification and keywords): The patent concerns predictive coding of digital video, specifically the processing and predictive encoding of motion vectors. Its classification places it in motion estimation/motion compensation, motion-vector processing and predictive (differential) encoding of motion vectors, and in adaptive coding where the coding unit is a block/macroblock. The listed prior-art keywords—"motion vector," "coding," "block," "unit," "processing"—are consistent with block-based inter-prediction.
Plain-language scope: As suggested by the classification and keyword data, the claimed subject matter appears to cover methods and apparatus for encoding and decoding moving pictures in which motion vectors for blocks/units are handled predictively—i.e., the encoder derives a prediction for a block's motion vector and codes the difference, and the decoder reconstructs the vector the same way. The claims themselves are not reproduced in the excerpt, so the precise scope cannot be stated here.
What the excerpt does not establish:
- The actual text of any claim, and therefore the true metes and bounds of coverage.
- The specification, figures, or embodiments (the images section is empty in the captured text).
- The specific prior art cited during prosecution.
- Litigation parties, venues, or outcomes, despite the litigation-family notation.
- Any ownership transfers beyond the listed assignee.
- Validity or enforceability.
Source: https://patents.google.com/patent/[US10992953](/patent/US10992953)/en
Generated 10/28/2026, 12:01:29 PM
Cases on file (0)
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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.
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.
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.
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.