Invalidity dossier
US 9628343
Added 8/25/2026, 6:50:59 PM
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: US9628343B2
Title: Content delivery framework with dynamic service network topologies
Patent number: US9628343B2 | Application number: US13/714,417 | Publication: US20140173038A1
Inventors: Christopher Newton; Lewis Robert Varney; Laurence R. Lipstone; William Crowder; Andrew Swart
Original assignee: Level 3 Communications LLC | Current assignee (as listed): Sandpiper CDN LLC
Dates: Prior art date 2012-12-13; filing date 2012-12-14; publication date 2017-04-18. Legal status listed as Active, with adjusted expiration 2034-06-19. The source also records priority filings to PCT/US2013/074824, EP13861539.8A, HK16103772.0A, and CA2894873A, and a 2024-07-09 assignment from Level 3 Communications, LLC to SANDPIPER CDN, LLC.
Classification: H04L41/00 (arrangements for maintenance, administration or management of data switching networks), under H04L (transmission of digital information) and H04 (electric communication technique).
Purpose and plain-language scope: The patent concerns a content delivery framework whose service network topologies are dynamic. The listed prior-art keywords are "services," "service," "control," "network," and "collector," which indicate subject matter directed to distributing and controlling services across a network of nodes, where topology is not fixed but can change. The classification points to network administration and management arrangements. Expressed in plain language, the disclosed framework appears to address how a content delivery network organizes, manages, and reconfigures the services it runs, so that the network's structure can be adapted rather than remaining static.
Source: https://patents.google.com/patent/[US9628343](/patent/US9628343)/en (fetched 2026-10-01)
What the excerpt does not establish: The supplied text is largely bibliographic and classification data; the specification, drawings, and claims were not included (the excerpt is expressly partial). It therefore does not establish the actual claimed invention, specific embodiments, technical mechanisms for achieving dynamic topologies, the meaning of "collector" or "control" in context, or claim scope. Dates and legal status are expressly flagged in the source as assumptions, not legal conclusions. This overview is drawn solely from the supplied source text, not from research into litigation, ownership transfers, validity, or prior art.
Generated 10/1/2026, 10:04:11 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.