Invalidity dossier
US 11405164
Coordinated access point time division multiple access
Current assignee: Qualcomm Inc
Added 9/23/2026, 7:19:03 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: US11405164B2
Title: Coordinated access point time division multiple access
Patent number: US11405164B2
Application number: US17/038,121
Publication date (grant): 2022-08-02
Filing date: 2020-09-30
Priority date: 2019-10-10
Adjusted expiration: 2040-11-12
Legal status: Active
Inventor(s): Lochan Verma, Maarten Menzo Wentink, George Cherian
Current/original assignee: Qualcomm Inc (Qualcomm Incorporated)
Purpose: The patent relates generally to wireless communication, and more specifically to coordinated AP (CAP) time-division-multiple-access (TDMA) techniques for sharing the time resources of a transmission opportunity (TXOP). The context is a wireless local area network (WLAN) formed by one or more access points (APs) providing a shared medium to stations (STAs), with the Basic Service Set (BSS) as the basic building block of an IEEE 802.11-family WLAN.
Plain-language scope (from the supplied excerpt): A first wireless access point obtains a transmission opportunity over a wireless channel; selects one or more other APs to participate in that TXOP; and wirelessly transmits a first frame to the selected APs indicating, for each, which time resources of the TXOP's plurality of time resources are allocated to it, usable to transmit data to, or receive data from, its associated STAs during the TXOP. The first AP then transmits/receives data with its own associated STAs using its allocated first time resources, which do not overlap other allocated time resources. The excerpt further describes transmitting a second frame to multiple APs indicating the TXOP's time resources can be shared, receiving a third frame from each candidate AP indicating a desire to participate, and selecting participants from those candidates. It also describes a corresponding wireless communication device with modem, processor, and memory.
Source: https://patents.google.com/patent/[US11405164](/patent/US11405164)/en
What the excerpt does not establish: It does not provide the full claims or full specification, the exact number or wording of claims, priority-document contents, or the specific prior-art references relied upon. It contains no findings on validity, infringement, litigation, or ownership transfers (the listed assignee status is expressly an assumption).
Generated 10/1/2026, 9:42:10 PM
Cases on file (0)
Specific litigation cases in our database that name US patent 11405164. 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.