Invalidity dossier
US 7885286
Method and arrangements in an IP network
Current assignee: NetSocket Inc
Added 9/23/2026, 10:15:41 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US7885286B2
Title: "Method and arrangements in an IP network"
Patent number / application: US7885286B2; application US11/315,293, filed 2005-12-23. Publication date 2011-02-08. Priority date listed as 2005-12-23 (Google notes this is an assumption, not a legal conclusion).
Inventors: Jim Sundqvist and Erik Lundgren.
Assignee (current, per listing): NetSocket Inc. Original assignee also NetSocket Inc. The source shows additional assignments (Operax AB, NYA OPERAX AB, NetSocket, Inc., Comerica Bank security agreement, later releases), but these are ownership transfers I am instructed not to research or analyze.
Purpose (from the supplied definitions): The invention "relates to methods and arrangements in an IP network, in particular for initiating a multicast media distribution." The background explains that IP networks are packet-based, keeping network infrastructure simple while intelligence sits in clients. Infrastructure elements (routers, switches, BRAS, access nodes) forward data without knowledge of the information content. Media content distribution combines session control (application framework) with distribution (content server(s)); the application framework mediates session control between sending and receiving clients. Receiving clients may be set-top boxes or PCs; sending clients may be content servers or content portals.
Plain-language scope: The patent addresses initiating multicast distribution of media over an IP network—essentially, arrangements for getting a media stream started to multiple receivers, using an application framework plus content servers.
Classifications noted: H04L12/18 (multicast/broadcast services), H04L47/70 and subclasses (admission control and resource allocation), H04L65/611 (multicast/broadcast streaming), among others. Prior-art keywords listed include "network," "media," "distribution," "resource manager," and "quick start."
What the excerpt does NOT establish:
- Claims are not reproduced here; no scope of specific claims can be confirmed.
- The description is explicitly marked as excerpted and omitted text is not available.
- Because of that, no technical details beyond the definitions summary above are verified.
- Legal status, litigation, ownership transfers, validity, and prior art are outside this overview and were not researched.
Source: https://patents.google.com/patent/[US7885286](/patent/US7885286)/en
Generated 10/1/2026, 9:33:37 PM
Cases on file (0)
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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.