Invalidity dossier
US 7844687
Method for internetworked hybrid wireless integrated network sensors (WINS)
Current assignee: Intellectual Ventures I LLC
Added 9/20/2026, 5:16:00 AM
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 — US7844687B1
Title: Method for internetworked hybrid wireless integrated network sensors (WINS)
Patent number: US7844687B1
Application number: US09/684,742
Filing date: 2000-10-04
Priority date: 1999-10-06
Publication/grant date: 2010-11-30
Legal status (as listed): Expired – Lifetime; adjusted expiration 2024-09-11
Inventors: David C. Gelvin; Lewis D. Girod; William J. Kaiser; William M. Merrill; Fredric Newberg; Gregory J. Pottie; Anton I. Sipos; Sandeep Vardhan
Original assignee: Individual
Current assignee (as listed): Intellectual Ventures I LLC
Purpose and plain-language scope (per the supplied text): The patent concerns "internetworked hybrid wireless integrated network sensors (WINS)." Its prior-art keywords — nodes, node, network, assembly packet, sensor — indicate a sensor-network subject matter in which multiple sensor nodes are networked. The single classification shown in the excerpt is H04L43/16 (threshold monitoring) within H04L43/00 (arrangements for monitoring or testing data switching networks), alongside H04L67/12 (protocols specially adapted for proprietary or special-purpose networking environments, e.g. sensor networks) and G06F15/00. The excerpt provides the title and classification metadata but does not reproduce the specification, so the claims' actual scope is not available from it.
Source: https://patents.google.com/patent/[US7844687](/patent/US7844687)/en
What the excerpt does not establish:
- No claim text, abstract, description, or drawings are included; the claimed invention's precise scope cannot be stated.
- The assignee list is expressly described as possibly inaccurate; no legal analysis of status is made.
- Inventorship, priority, filing, and expiration entries are described as assumptions in the source.
- The excerpt is incomplete ("[Excerpt only; consult the source for omitted text.]"), so classifications and other details beyond those shown are unverified.
This overview is limited to the supplied source text; no external research or inferences about litigation, ownership, validity, or prior art are included.
Generated 10/1/2026, 10:02:59 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.