Invalidity dossier
US 6229795
Added 9/21/2026, 3:58:59 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 6229795 B1
Title: System for allocating resources in a communication system
Patent number: US 6229795 B1
Application number: US09/229,432
Inventors: Rajesh Pankaj; Nagabhushana T. Sindhushayana
Original/current assignee (as listed): Qualcomm Inc / QUALCOMM INCORPORATED
Filing date / Priority date: 1999-01-13
Publication (grant) date: 2001-05-08
Legal status (as listed): Expired – Lifetime; anticipated expiration 2019-01-13
Purpose: The stated objects are to provide a system and method for allocating a finite resource of a communication system among a plurality of subscribers, and for allocating data transmission resources among subscribers having varying capacities to receive data. The excerpt notes that TDMA systems typically allocate equal time intervals to each subscriber in round-robin fashion, which may under-utilize intervals or leave subscribers under-served, forcing the operator either to incur the cost of adding bandwidth or to leave subscribers under-served.
Plain-language scope: The disclosed subject matter concerns a resource scheduler in a communication system having a common node and multiple customer nodes associated with it. The common node, in a given service interval, can provide a finite resource to be seized by one or more engaging customer nodes to the exclusion of the remaining customer nodes. The scheduler includes logic for maintaining a weight or score associated with each customer node, and logic for selecting one or more of the remaining customer nodes to seize the finite resource in a subsequent service interval based upon [text truncated in the supplied excerpt]. Field examples given include FDMA, TDMA, and CDMA.
Source: https://patents.google.com/patent/US6229795/en
What the excerpt does not establish: Because the supplied text is an excerpt, it does not establish the full claim set, detailed description, or drawings; the complete selection logic and any claim limitations; the full prosecution history; or the complete list of family members, priorities, and international filings. It does not establish inventorship conclusions, claim validity, enforceability, or any litigation. Nothing here should be read as a legal conclusion; the listed legal status and assignee are expressly described by the source as assumptions only.
Generated 10/1/2026, 10:00:48 PM
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Litigation summary
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Proceedings on file (0)
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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
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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.