Invalidity dossier
US 8156528
Personal video recorder systems and methods
Current assignee: DirecTV, LLC
Added 8/27/2026, 6:49:33 PM
Active provider: DeepSeek · deepseek-v4-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US8156528B2
Title: Personal video recorder systems and methods
Source: https://patents.google.com/patent/[US8156528](/patent/US8156528)/en
Bibliographic Data
- Patent number: US8156528B2
- Application number: US10/105,082
- Inventors: Joseph P. Baumgartner; Kenneth F. Carpenter, Jr.; Michael D. Ellis; Danny R. Gaydou
- Original assignee: United Video Properties Inc
- Current assignee (per source): Adeia Guides Inc
- Priority date: 2001-03-22
- Filing date: 2002-03-21
- Publication date: 2012-04-10
- Legal status: Active; adjusted expiration 2028-07-23
Plain-Language Scope
The excerpt identifies this patent by title and prior-art keywords — "pvr," "video recorder," "personal video," "interactive television," and "program guide" — indicating the subject matter concerns personal video recorder (PVR) systems and related methods, with ties to interactive television and program guide functionality. Beyond the title and keyword list, the excerpt provides no claim text, no abstract, and no detailed description.
What the Excerpt Does Not Establish
The supplied text does not include:
- Any claim language, so the actual legal scope of the invention is not established.
- An abstract or written description summarizing the disclosed embodiments.
- Any prior-art references or examiner citations.
- The specific technical problems addressed or solutions claimed.
Statements about the patent's litigation history, ownership transfers, security interests, validity, or prior art are visible in the source listing but are outside the scope of this overview per instructions and are not analyzed here. The legal status is expressly described by the source as an assumption, not a legal conclusion. No facts beyond those reproduced above should be inferred. Consult the full patent document for the claims and specification.
Generated 10/1/2026, 10:03:37 PM
Cases on file (1)
Group view →Specific litigation cases in our database that name US patent 8156528. The free-form analysis below may also discuss cases beyond this list.
- DirecTV, LLC v. Adeia Inc. et al.filed Dec 29, 20253:25-cv-11048U.S. District Court for the Northern District of CaliforniaOpen; pending
Defendants: Adeia Inc., Adeia Guides Inc., Adeia Media Holdings LLC, and 2 others
Other patents asserted: 9661049, 8601526, 10506010, 10110961
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.
Current assignee: DirecTV, LLC
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.
Keep exploring
More patents asserted by DirecTV, LLC
- US 9661049Summary — U.S. Patent No. 9,661,049 (US9661049B2) Note on sources: I searched for this patent on USPTO/Google Patents and for CAFC 2026 docket activity. The Google Patents record for US9661049B2 was confirmed (title, dates, assignee…
- US 8601526Patent Overview: US8601526B2 Title: Systems and methods for displaying media content and media guidance information Patent number: US8601526B2 Application number: US12/144,434 Publication date (grant): 2013-12-03 Filing date: 2008-06-23…
- US 10506010Patent Overview: US10506010B2 — "Delivering Content in Multiple Formats" Source: https://patents.google.com/patent/US10506010/en Identification. US10506010B2, application US15/421,778, filed 2017-02-01, granted 2019-12-10. Priority date…
- US 10110961Patent Overview — US10110961B2 Title: Methods and systems for supplementing media assets during fast-access playback operations Patent number / application: US10110961B2; application US15/415,052; publication US20170134814A1. Inventor /…
This patent in court (1)
1 tracked lawsuit name US 8156528.