Invalidity dossier
US 12267380
Systems and methods for seeking within multimedia content during streaming playback
Current assignee: Divx LLC
Added 9/23/2026, 10:44:45 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US12267380B2
Title: Systems and methods for seeking within multimedia content during streaming playback
Patent number: US12267380B2 | Application number: US18/352,966 | Publication date: 2025-04-01 | Filing date: 2023-07-14 | Priority date listed: 2007-01-05 | Anticipated expiration listed: 2028-01-07 | Legal status listed: Active
Inventor: Roland Osborne | Current assignee listed: Divx LLC | Original assignee listed: Divx LLC | Other version listed: US20240022621A1
Purpose: The patent relates to playing multimedia files over a network, and more specifically to "the progressive playback of multimedia files as they are downloaded over a network." Progressive playback lets a user select a remote movie and begin watching before the full download completes; the excerpt states a user "only has to wait a couple of seconds before playback can begin," versus minutes to hours for a full download.
Plain-language scope: The supplied text describes a problem context rather than the claims. Server-driven approaches (citing U.S. application Ser. Nos. 11/323,044, 11/323,062, 11/327,543, and 11/322,604, incorporated by reference) let a server parse the data file and decide what to send, but standard HTTP web servers typically lack this functionality, and custom web servers scale poorly across many simultaneous players. Samba-style remote-file access pre-caches from the current file position, which can be randomly set, but this is described as insufficient for "trick play" functions—rewinding, fast forwarding, and skipping between scenes—that require non-sequential access. In those scenarios, video frames may be spaced far apart or require more complex ordering, diminishing the utility of traditional pre-caching methods that assume sequential subsequent video. Classification highlights include H04L65/60, H04N21/6587 (trick play commands), H04N21/472, G06F16/738, and G06F16/739.
Source: https://patents.google.com/patent/[US12267380](/patent/US12267380)/en (fetched 2026-09-23)
What the excerpt does not establish: It contains only a definitions/background fragment—no claim language, detailed description, or figures are reproduced, so the actual claimed scope, embodiments, and any specific seeking mechanism are not established by this excerpt. Bibliographic fields (dates, assignee, status, expiration) are presented as listed by the source, which itself characterizes them as assumptions rather than legal conclusions.
Generated 10/1/2026, 9:54:07 PM
Cases on file (0)
Specific litigation cases in our database that name US patent 12267380. The free-form analysis below may also discuss cases beyond this list.
No cases on file mention this patent. Upload a CSV or add a case manually in Admin → Manage litigation cases.
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.