Invalidity dossier
US 9660875
Devices and methods supporting content delivery with rendezvous services having dynamically configurable log information
Current assignee: Sandpiper Cdn LLC
Added 8/25/2026, 6:51:07 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: US9660875B2
Title: Devices and methods supporting content delivery with rendezvous services having dynamically configurable log information
Patent number: US9660875B2
Application number: US13/715,683
Publication date: 2017-05-23
Filing date: 2012-12-14
Priority date: 2012-12-13 (listed as an assumption, not a legal conclusion)
Adjusted expiration: 2033-03-16 (legal status listed as an assumption)
Original assignee: Level 3 Communications LLC
Current assignee (as listed): Sandpiper CDN LLC (Google notes the assignee list may be inaccurate and is not legally analyzed)
Inventors: William Crowder, Andrew Swart, Christopher Newton, Lewis Robert Varney, Laurence R. Lipstone
Purpose and plain-language scope (based only on the supplied excerpt): The patent relates to content delivery using "rendezvous services," and specifically to those services having "dynamically configurable log information." The excerpt's only substantive characterization is the title and a prior-art keyword list — service, services, information, control, rendezvous. It is classified under H04L41/00 (arrangements for maintenance, administration or management of data switching networks), indicating a network-management dimension. No claim text, abstract, or detailed description is included in the supplied material.
Related family/priority filings listed: WO2014093717A1, EP2932401B1, HK1215817B, CA2894873C; earlier publication US20140173045A1. The listing notes a "First worldwide family litigation filed" flag, but per instructions this overview does not research or characterize litigation. A 2024-07-09 assignment to SANDPIPER CDN, LLC is listed; as instructed, this overview does not analyze ownership.
What the excerpt does not establish: It contains no claims, abstract, or written description, so the actual claimed scope, technical implementation, and any limitations cannot be verified from this source. Dates and legal status are expressly flagged by the source as assumptions, not legal conclusions. Inventor and assignee listings are not warranted as accurate.
Source: https://patents.google.com/patent/[US9660875](/patent/US9660875)/en (fetched 2026-10-01).
Generated 10/1/2026, 10:04:00 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.