Invalidity dossier
US 12140819
Head-worn personal audio apparatus supporting enhanced audio output
Current assignee: Ingeniospec LLC
Added 9/23/2026, 10:18:44 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
US 12140819 B1 — Patent Overview
Title: Head-worn personal audio apparatus supporting enhanced audio output
Patent number: US 12140819 B1
Application number: US 18/594,662
Filed: 2024-03-04
Granted / published: 2024-11-12
Pre-grant publication: US 20240377657 A1 (published 2024-11-14)
Priority date (as stated): 2004-07-28
Inventor(s): Thomas A. Howell; David Chao; C. Douglass Thomas; Peter P. Tong
Assignee (listed): Ingeniospec LLC (original assignee and current assignee per the source listing)
Legal status: Expired – Lifetime (anticipated expiration listed as 2025-07-15)
Purpose and plain-language scope: The source identifies the invention only by its title and metadata: a "head-worn personal audio apparatus supporting enhanced audio output." The listing records prior-art keywords of head, electronic apparatus, personal electronic, user, temple — indicating the subject matter concerns a personal electronic device worn on the head, with a temple region typical of eyewear-style frames, employed by a user. The family is flagged in the source as having litigation, and priority is claimed from application US 11/183,269 (dated 2005-07-15) via patent US 7922321 B2. A Darts-ip family link (family 83901364) is provided in the source listing.
Source: https://patents.google.com/patent/US12140819/en
What this excerpt does not establish: The supplied text contains no abstract, no claims, no written description, and no drawings, so it does not establish the actual claimed invention, its scope, specific components, audio-processing features, or embodiments. It does not establish validity, patentability, enforceability, or the correctness of any priority, expiration, or status assumption — the source itself notes that legal status and priority dates are assumptions, not legal conclusions, and that assignee listings are not warranted as accurate. It also does not establish the existence, parties, or subject matter of any litigation. No conclusions about ownership transfers, prior-art effect, or claim coverage should be drawn from this excerpt alone; the full patent document would be required.
Generated 10/1/2026, 9:33:34 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.