Invalidity dossier
US 11115834
System and method for extending range and coverage of bandwidth intensive wireless data streams
Current assignee: Xifi Networks R and D Inc
Added 9/23/2026, 5:08:54 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 — US11115834B2
Title: System and method for extending range and coverage of bandwidth intensive wireless data streams
Patent number / application: US11115834B2; Application No. US16/039,660; earlier publication US20190082329A1.
Inventor / assignee: Inventor Sai C. Manapragada; original assignee listed as "Individual," with a later assignment to Xifi Networks R&D Inc.
Key dates (as listed): Priority date 2013-10-30; filing date 2018-07-19; publication date 2021-09-07; anticipated expiration 2034-10-29; legal status listed as Active.
Purpose: The disclosure relates to wireless networks, and more specifically to high-bandwidth wireless networks for distributing multi-media content. It addresses the problem that a given hotspot, or wireless access point, typically has a limited range and coverage area.
Plain-language scope: A wireless networking system uses multiple access points ("nodes"). A first access point has a first transceiver to reach a wireless network (e.g., the Internet) and a second transceiver coupled to it. A second access point has a third transceiver forming a wireless link with the second transceiver, and a fourth transceiver coupled to the third to give users access to that link. Users thus reach the network via the second and first transceivers. Nodes may be arranged linearly (serially or daisy-chained) to extend coverage across multiple zones, or radially (FIGS. 4A–4C). Nodes can have different configurations depending on resources and bandwidth demand; a radio may handle multiple tasks if demand is low. A wireless management system using a virtual MAC and virtual PHY adaptively manages multiple radios, and multiple such systems may cooperate to allocate transceiver resources between users. A corresponding method and a wireless access point with processing logic controlling its transceivers are also described.
Source: https://patents.google.com/patent/[US11115834](/patent/US11115834)/en
What the excerpt does not establish: It does not provide the full claims or specification, the complete list of cited prior art and its rejection/allowance history, the exact scope of the granted claims, current ownership validity, or any litigation details beyond a boilerplate litigation link.
Generated 10/1/2026, 9:43:48 PM
Cases on file (0)
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Litigation summary
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Proceedings on file (0)
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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.