Invalidity dossier
US 8458277
Added 9/23/2026, 12:28:44 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US8458277B2
Title: Method and system for providing universal relay services
Patent number: US8458277B2
Application number: US10/975,971
Filing date: 2004-10-28
Priority date: 2004-01-22
Publication date (grant): 2013-06-04
Inventor(s): Richard G. Moore; Guna D. Gunasekar; Phillip E. Lawson-Shanks; Darryl W. Shaw
Assignee: Current assignee listed as Verizon Patent and Licensing Inc.; original assignee Verizon Business Global LLC.
Legal status: Expired – Fee Related; adjusted expiration 2030-12-06 (status as listed; not a legal conclusion).
Purpose: The patent addresses providing integrated communication services across differing communication systems, each of which may use a different addressing scheme. A user may hold multiple telephone numbers, pager/fax numbers, email and instant-messaging accounts, and web-based communication, each requiring separate accounts. The described approach uses an overlay network with a service provider system supporting an instant messaging (IM) environment and connectors/gateways linking IM sessions across different IM environments.
Plain-language scope: A request is received from a source IM client to establish communication with a subscriber at a destination IM client; the request specifies a screen/user name derived from a primary identifier that uniquely identifies the subscriber within the overlay network. The service provider system accesses the subscriber's profile to retrieve another user name corresponding to a different IM environment, based on the subscriber's presence in that environment. The excerpted method includes receiving the request specifying a first user name derived from the subscriber's unique identifier, and determining the unique identifier from that first user name; the description also mentions possible protocol or spoken-language translation by human and/or automated systems.
Source: https://patents.google.com/patent/[US8458277](/patent/US8458277)/en
What this excerpt does not establish: The excerpt is partial; it omits the full specification, all claims, the complete abstract, and the drawings/text within the image area. It does not establish claim scope, claim count, or the full details of the described determination steps or dependent features. It also does not establish validity, enforceability, litigation history, or prior-art effect (not researched per instructions). Classifications and the fee-related status are as listed and may be assumptions rather than legal conclusions.
Generated 10/1/2026, 9:53:36 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.