The catalog

Patent invalidity dossiers.

5,801 patents in the database, sorted by number of on-file litigation cases. Of these, 1,942 have at least one tracked case across 4,023 litigations.

Demand letter analyzer

You got a patent demand letter. Now what?

Paste the letter — we extract the asserted patents, identify the asserter, characterize their litigation history, flag validity vulnerabilities, and draft a sample response letter your attorney can review. Free, private, ~2-3 minutes.

Analyze a letter →

Analyze a patent

Drop a US patent number — we’ll verify it on Google Patents and generate the full invalidity dossier.

By industry

  • Summary not yet generated.

    View full analysis →added 8/28/2026
  • As of April 28, 2026, the following is a summary of US Patent 11,336,597. Title: Two-way real time communication system that allows asymmetric participation in conversations across multiple electronic platforms Assignee: Disintermediation…

    View full analysis →added 4/28/2026
  • As a senior US patent analyst, I have reviewed the provided documentation for US patent 11,419,823. While I cannot perform a live search of the USPTO database or CAFC dockets, the provided patent text contains the necessary information…

    View full analysis →added 4/27/2026
  • Here's a concise summary of US Patent 11716171, based on the provided full patent text: US Patent 11716171 Title: Wireless communication terminal and wireless communication method for multi-user concurrent transmission Assignee: Wilus…

    View full analysis →added 5/14/2026
  • Summary of U.S. Patent No. 12,161,628 Title: Combination therapy Assignee: Astellas Pharma Inc., Medivation Prostate Therapeutics LLC Inventors: Jacqueline GIBBONS, Joyce MORDENTI, Michiel DE VRIES, Walter KRAUWINKEL, Taoufik Ouatas Filing…

    View full analysis →added 4/27/2026
  • An analysis of U.S. Patent 6,502,135 reveals a foundational patent in the field of secure network communications, which has been subject to litigation and has had its claims modified. Patent Summary: Title: Agile network protocol for…

    View full analysis →added 5/10/2026
  • Patent Summary: US 6,813,742 B2 Title: High speed turbo codes decoder for 3G using pipelined SISO log-map decoders architecture Assignee: TurboCode LLC Inventor: Quang Nguyen Filing Date: January 2, 2001 Issue Date: November 2, 2004…

    View full analysis →added 4/30/2026
  • An analysis of United States Patent 7,936,415 reveals the following details regarding its invention and legal status. Title: Light source apparatus and liquid crystal display having the same Current Assignee: As of the latest assignment…

    View full analysis →added 5/13/2026
  • Here is a concise summary of US patent 8291236: Title: Methods and apparatuses for secondary conditional access server Assignee: VIDEOLABS Inc (Current Assignee as of 2023-05-05). The original assignee was Digital Keystone Inc. Inventors…

    View full analysis →added 5/14/2026
  • A search of the United States Patent and Trademark Office (USPTO) database and the dockets for the Court of Appeals for the Federal Circuit (CAFC) for the year 2026 provides the following summary for US Patent 8,370,416. Summary of US…

    View full analysis →added 5/12/2026
  • An analysis of United States Patent 8,549,339 reveals a technology focused on managing power and communication in multi-core processors, which has been the subject of significant litigation. Summary of U.S. Patent 8,549,339 Title…

    View full analysis →added 5/13/2026
  • An analysis of United States Patent 9,179,359 B2 reveals a system for managing network access for different applications on a wireless device based on the network's current conditions. Title: Wireless end-user device with differentiated…

    View full analysis →added 5/12/2026
  • Patent Analysis: US 9,290,153 B2 Date of Analysis: April 26, 2026 Patent Number: 9,290,153 (Note: Interpreted literally as provided) Title: Vehicle-based multimode discovery Key Patent-at-a-Glance: Assignee: AutoConnect Holdings LLC…

    View full analysis →added 4/30/2026
  • A technical analysis of U.S. Patent 9,792,361 reveals a system for location-based interaction with social networks, including the reporting of roadway conditions. As of April 26, 2026, the patent is assigned to Mimzi LLC, and a search of…

    View full analysis →added 5/4/2026
  • Here's a concise summary of US Patent 11251315, based on the provided authoritative text and current as of April 26, 2026: US Patent 11251315 Summary Title: Solar cells with improved lifetime, passivation and/or efficiency Assignee: Maxeon…

    View full analysis →added 7/11/2026
  • US patent 11770756, titled "Mobile device mode enablement/disablement responsive to sensing a physiological parameter," was issued on September 26, 2023, to assignee Telcom Ventures LLC. The inventors are Peter D. Karabinis and Rajendra…

    View full analysis →added 5/14/2026
  • US Patent 12193790 (B2), titled "Wearable devices comprising semiconductor diode light sources with improved signal-to-noise ratio," was issued to inventor Mohammed N. Islam and assigned to Omni Medsci Inc. on January 14, 2025. The patent…

    View full analysis →added 5/13/2026
  • US Patent 9615204: Techniques for Communication Within Closed Groups of Mobile Devices Title: Techniques for communication within closed groups of mobile devices Assignee: Piney Woods Mobility LLC (Current Assignee), X One Inc (Original…

    View full analysis →added 6/3/2026
  • I'll verify the patent details against live sources, including checking for any 2026 CAFC activity. Let me check for the specific 2026 CAFC docket activity and the IPR outcomes. US Patent 10,073,960 B1 — Verification Summary I searched for…

    View full analysis →added 9/18/2026
  • I'll search for authoritative information on this specific patent number. Let me check for litigation history and any 2026 appellate activity specifically tied to this patent. US Patent 10,090,894 B2 — Analyst Summary Note on scope: I…

    View full analysis →added 9/19/2026