Invalidity dossier
US 7072651
Method and system for cellular network traffic redirection
Current assignee: Mobileum Inc
Added 9/20/2026, 5:22:04 AM
Active provider: DeepSeek · deepseek-flash
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
Cases on file (0)
Specific litigation cases in our database that name US patent 7072651. The free-form analysis below may also discuss cases beyond this list.
No cases on file mention this patent. Upload a CSV or add a case manually in Admin → Manage litigation cases.
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.