Invalidity dossier
US 6654807
Internet content delivery network
Current assignee: MOUNT SHASTA ACQUISITION LLC
Added 9/23/2026, 7:16:04 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 — US6654807B2
Title: Internet content delivery network
Patent number: US6654807B2
Application number: US10/004,430
Inventors: David A. Farber, Richard E. Greer, Andrew D. Swart, James A. Balter
Original assignee: Cable and Wireless Internet Services Inc
Current assignee (as listed): MOUNT SHASTA ACQUISITION LLC; Sandpiper Cdn LLC
Priority date: 1998-02-10
Filing date: 2001-12-06
Publication date: 2003-11-25
Legal status: Expired – Lifetime; anticipated expiration 2018-02-10
Source: https://patents.google.com/patent/[US6654807](/patent/US6654807)/en
Purpose and plain-language scope (from the excerpt): The patent is directed to an internet content delivery network. The only substantive scope signal in the supplied text is the listed prior-art keywords — repeater, server, information, servers, client request — which indicate subject matter involving servers and repeaters handling client requests for information. The classification schedule is consistent with this: H04L67/1001 (accessing one among a plurality of replicated servers), H04L67/1004–H04L67/1014 (server selection for load balancing, including based on network conditions and request content), H04L61/4511 (DNS-based name-to-address mapping), and G06F16/957 (browsing optimisation, e.g. caching or content distillation).
Family/related documents noted in the excerpt: US20020049857A1 (published 2002-04-25). The excerpt also lists a Federal Circuit litigation entry and a Darts-ip family litigation link.
What the excerpt does not establish:
- No claims, abstract, or detailed description are present, so the actual claimed scope cannot be stated.
- No prior-art references are identified; no validity assessment is possible.
- The excerpt contains no substantive disclosure of how the content delivery network operates beyond the keywords and class titles above.
- The listed assignees are expressly noted by the source as possibly inaccurate, and the excerpt provides no verified ownership history.
- The "Expired – Lifetime" status and expiration date are the source's assumptions, not legal conclusions.
- Litigation is only listed as a link; the excerpt supplies no litigation substance, outcome, or holding, and none is analyzed here.
All statements above are limited to fields appearing in the supplied source text.
Generated 10/1/2026, 9:42:15 PM
Cases on file (0)
Specific litigation cases in our database that name US patent 6654807. 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.