Invalidity dossier
US 5742845
System for extending present open network communication protocols to communicate with non-standard I/O devices directly coupled to an open network
Current assignee: WiLAN Technologies Inc
Added 9/23/2026, 4:30:44 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 — US5742845A
Title: System for extending present open network communication protocols to communicate with non-standard I/O devices directly coupled to an open network.
Patent number / application: US5742845A; application US08/493,772.
Inventor: Richard Hiers Wagner.
Assignee: Original assignee Datascape, Inc. Current assignee (as listed, with the source noting assignees may be inaccurate and that Google has not analyzed or warranted the list) is WiLAN Technologies Inc.
Key dates: Priority date 1995-06-22 (stated as an assumption); filing date 1995-06-22; publication/grant date 1998-04-21. Legal status listed as "Expired – Lifetime," with anticipated expiration 2015-06-22. The source also records an assignment to DATASCAPE, INC. dated 1995-06-22.
Purpose and plain-language scope: The title and the "prior art keywords" (devices, server, data, open network, statements) indicate the invention concerns extending existing open-network communication protocols so that non-standard I/O devices coupled directly to an open network can communicate over it. In plain terms, the patent appears directed to letting ordinary network protocols serve devices that do not natively speak those protocols, via a server and associated data/statements.
Classifications listed: G06F8/33 (intelligent editors); G06Q20/10, 20/105, 20/108, 20/382 (electronic funds transfer, home/remote banking, portable memory device programming, transaction security); G06Q30/00 and 30/0601 (commerce, e-shopping); and H04L67/01, 67/02 (protocols, including web/HTTP-based).
Continuations/related filings noted: US08/940,721; US08/995,123; US09/314,266; US09/907,076; US10/100,347; US10/213,959; US10/614,398; US10/770,628; US11/079,443.
What the excerpt does not establish: It contains no claims, abstract, or description text, so the actual claimed scope, embodiments, and technical operation cannot be verified from this excerpt. It does not establish validity, enforceability, or the accuracy of the listed assignees or priority date; the source itself labels these as assumptions or non-warranted. Litigation, ownership transfers, and prior art are outside the scope of this overview.
Source: https://patents.google.com/patent/[US5742845](/patent/US5742845)/en
Generated 10/1/2026, 9:44:25 PM
Cases on file (0)
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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.