Invalidity dossier
US 7072651
Added 9/20/2026, 5:22:04 AM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 7,072,651 B2
Title: Method and system for cellular network traffic redirection
Patent number / application: US 7,072,651 B2 (application US 10/635,804)
Assignee: Original assignee Roamware Inc.; current assignee listed as Mobileum Inc. (per the supplied text, which notes listed assignees may be inaccurate).
Key dates: Priority date 2002-08-05; filing date 2003-08-05; publication of US 2004/0087305 A1 on 2004-05-06; granted/publication date 2006-07-04. Legal status shown as expired — lifetime, with an adjusted expiration of 2023-12-26.
Inventors: Yuen J. Jiang, Avnish Chauhan, Subhabrata Biswas, Bahadur Bhambhani, Alex Rodrigues.
Classifications: H04W48/18 (selecting a network or communication service), H04W24/00, H04W60/00, H04W84/042.
Purpose: The disclosed embodiments relate to methods and systems for directing cellular network traffic. The stated problem: a home network operator (HPMN) wants to control or influence which visited network (VPMN) its out-roamers register with, but must also respect circumstances such as manual network selection, where preferred-VPMN selection from the HPMN's perspective should not apply. The text notes that identifying current handset settings and implementing a seamless mechanism to do so "has been a challenge thus far."
Plain-language scope: Based on the supplied excerpt, the patent concerns redirecting roaming subscribers of a home mobile network toward preferred/partner visited networks rather than non-preferred ones, considering handset network-selection behavior (automatic mode, which follows rules such as home-network preference and the Preferred PLMN List, versus manual mode). Operators are described as benefiting through margins, attractive roaming rates, group-property steering, geography-based price plans, and controlled technology rollout.
Source: https://patents.google.com/patent/US7072651/en
What the excerpt does not establish: It does not provide the claims, detailed embodiments, or prior-art references (only "prior art keywords" such as network, mobile station, VPLMN, HPLMN, roaming). It does not establish the specific redirection mechanisms, prosecution history, or the accuracy of assignee and priority information (each flagged as assumptions in the source).
Generated 10/1/2026, 10:02:44 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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