Invalidity dossier
US 7798695
Light emitting panel assemblies
Current assignee: Innovative Display Technologies LLC
Added 9/23/2026, 5:02:46 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US7798695B2 — "Light emitting panel assemblies"
Title: Light emitting panel assemblies
Patent number: US7798695B2
Inventor: Jeffery R. Parker
Application number: US12/273,121; filed 2008-11-18
Publication: US20090073719A1 (2009-03-19); granted 2010-09-21
Priority date listed: 1995-06-27
Current assignee listed: Innovative Display Technologies LLC
Original assignee listed: Rambus International Ltd
Status listed: Expired – Fee Related (anticipated expiration 2015-06-27)
Purpose/scope (plain language, per supplied text): The patent concerns light emitting panel assemblies and light guides. Its classifications indicate planar or plate-like light guides; improving coupling-in of light from a light source into the guide (including by shaping the guide and housing part of the light source in holes or recesses); improving coupling-out of light (including 2-D arrangements of prisms, protrusions, indentations or roughened surfaces, and linear/arc-shaped grooves extending over the guide); and arrangements of plural/multi-colour light sources, including white LEDs for illuminating a surgical field. Prior-art keywords listed are "light," "assembly," "panel," "panel member," and "light source."
Source: https://patents.google.com/patent/[US7798695](/patent/US7798695)/en
What the excerpt does not establish: The supplied text is a Google Patents bibliographic/classification excerpt; it does not include the claims, abstract, detailed description, or drawings. It therefore does not establish the actual claimed invention, specific embodiments, dimensions, materials, or the commercial purpose of any product. It also does not include the 1999-02-23 priority claim from US09/256,275 beyond the listed external-priority entry. Any ownership transfers, litigation, validity, and prior art are outside the supplied text and are not addressed here.
Generated 10/1/2026, 9:43:53 PM
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Litigation summary
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Proceedings on file (0)
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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.