Invalidity dossier
US 9210254
Unified services platform using a telephone number as a common subscriber identifier
Current assignee: Zilkr Cloud Technologies LLC
Added 10/6/2026, 12:02:00 AM
Active provider: DeepSeek · deepseek-v4-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US 9,210,254 B2
Title: Unified services platform using a telephone number as a common subscriber identifier
Patent Number: US 9,210,254 B2
Application Number: US 14/087,768
Publication Number (Application): US 2015/0103985 A1
Inventor: Evin Hunt
Original Assignee: Shango Corp LLC
Current Assignee (as listed): Zilkr Cloud Technologies LLC; Shango Corp LLC; Orisha Holdings LLC
Key Dates (as listed in the supplied source):
- Priority date: 2013-10-09
- Filing date: 2013-11-22
- Publication date: 2015-12-08
- Grant date: 2015-12-08
- Adjusted expiration: 2034-03-18
- Legal status: Active
Purpose and Plain-Language Scope:
The patent describes a unified services platform that uses a telephone number as a common subscriber identifier. According to the supplied classification and keyword data, the invention relates to telephonic communication systems that provide personal communication services independent of a subscriber's terminal or location, and to mapping addresses of different types (e.g., mapping telephone numbers to data network addresses). The platform appears directed to enabling a subscriber to access multiple services across different providers and terminals using one telephone number as the unifying identifier, with support for session management (including SIP), service activation and deactivation, storage, and billing/metering arrangements across several service providers.
The supplied excerpt lists classifications including H04M3/42229 (personal communication services independent of terminal/location), H04M3/42263 (nomadism—same subscriber using different terminals), H04L61/106 (mapping telephone numbers to data network addresses), H04L65/1104 (SIP), H04M15/49 (connection to several service providers), and H04M15/44 (consolidated or itemized billing).
Source:
https://patents.google.com/patent/US9210254/en
What the excerpt does not establish:
The supplied text does not include the patent's actual claims, abstract, or full description; therefore the precise legal scope of the claims cannot be determined from this excerpt alone. It also does not establish the substance of any related family members, the basis for the listed priority or expiration dates, or the accuracy of the listed assignees and legal status (the source itself notes these are assumptions, not legal conclusions). No litigation, ownership-transfer, validity, or prior-art analysis is provided here, consistent with instructions.
Generated 10/6/2026, 12:10:47 AM
Cases on file (0)
Specific litigation cases in our database that name US patent 9210254. 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.