The catalog

Patent invalidity dossiers.

7,163 patents in the database, sorted by number of on-file litigation cases. Of these, 2,988 have at least one tracked case across 6,606 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

Software Technology & Computing Systems (T)(1343)Medical (M)(713)High-Tech (T)(550)Wireless Technologies(508)Semiconductor (T)(386)Automotive (A)(298)Industrial Manufacturing (IM)(295)Media & Broadcasting (T)(189)Biotechnology(153)Energy (E)(147)Optical Technology(144)Financial Technology (FT)(132)Sporting Goods (S)(84)Other (O)(73)Audio Technology(66)Consumer Durables(56)Home Appliance (HA)(48)Lighting (L)(47)Footwear(37)Agriculture (AG)(36)Firearms (F)(36)Gaming (G)(36)Food (FD)(35)Railroad(33)Home Security(31)Optical Communication(22)Audience Measurement(19)Plumbing(16)Baby Products(12)Printing Technology(10)Fire Safety (FS)(6)Retail Security(6)Telecommunications(5)Tech (T)(4)Aerospace(3)Aerospace (AS)(3)Printing Technology (P)(3)Aerospace (A)(2)Construction (C)(2)Printing (P)(2)Retail Technology (RT)(2)Telecommunications (T)(2)Telecommunications (TC)(2)Toys(2)Advertising (AD)(1)Aerospace (Ae)(1)Aviation(1)Aviation (AV)(1)Building & Construction(1)Building Construction (BC)(1)Building Materials(1)Chemical (C)(1)Chemical Sensing(1)Cosmetics (C)(1)Data Communication(1)Document Security(1)Electrical Components(1)Environmental Monitoring (EM)(1)Fencing(1)Fire Safety(1)Furniture (F)(1)High-Tech(1)Logistics (L)(1)Logistics & Shipping(1)Marine (M)(1)Maritime Logistics(1)Musical Instruments (MI)(1)Networking (N)(1)Office Equipment(1)Office Equipment (OE)(1)Paints & Coatings(1)Pet Products(1)Printing(1)Printing Technology (PT)(1)Retail Technology(1)Retail Technology (R)(1)Software Technology (T)(1)Textiles(1)Textiles (TX)(1)Tobacco (TB)(1)Vaping (V)(1)Video Surveillance(1)Video Technology(1)Water Treatment(1)
  • I'll search for authoritative information on this patent number, including litigation/docket activity. Let me run targeted searches on the assignees, the noted litigation, and the CAFC docket. US Patent 11,863,223 — Analyst Summary…

    View full analysis →added 9/19/2026
  • Here is a concise summary of US Patent 11864641: US Patent 11864641: Magnetically coupled wallet accessory for mobile device Title: Magnetically coupled wallet accessory for mobile device Assignee: 1LSS Inc Inventors: Fernando Mora…

    View full analysis →added 5/14/2026
  • US patent 11864755, titled "Artificial expandable implant systems," was granted to Moskowitz Family LLC on January 9, 2024, from an application filed on March 22, 2021 (Application number US17/208,640). The inventors are Mosheh T…

    View full analysis →added 5/12/2026
  • I'll verify the patent's identity and check the USPTO/PTAB and Federal Circuit dockets as requested. Let me pull the actual claim language and confirm current ownership and any appellate activity. US 11,865,291 B2 — Verification Summary…

    View full analysis →added 9/26/2026
  • Here's a concise summary of US patent 11872029: US Patent 11872029: Devices and methods for sleep disorder diagnosis and treatment Title: Devices and methods for sleep disorder diagnosis and treatment Assignee: Cleveland Medical Devices…

    View full analysis →added 6/30/2026
  • Here is a concise summary of US patent 11875275: Title: Custom time series models in computer analytics systems Assignee: The current assignee is Cisco Technology Inc. The original assignee was Splunk Inc. Inventors: Koulick Ghosh and…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US Patent 11885358: Title: Blind fastener and method of installation thereof Assignee: Howmet Aerospace Inc. (Current and Original Assignee) Inventors: Robert B. Wilcox, James Thomas Smith, Troy Don Pierce…

    View full analysis →added 5/12/2026
  • FOR IMMEDIATE RELEASE Patent Analysis: U.S. Patent No. 11,886,750 Date: April 26, 2026 Overview This report provides a summary of United States Patent number 11,886,750, titled "Analytics, algorithm architecture, and data processing system…

    View full analysis →added 5/13/2026
  • US Patent 11888392: High Speed, Efficient SiC Power Module Title: High speed, efficient sic power module Assignee: Wolfspeed Inc. Inventors: Mrinal K. Das, Adam Barkley, Henry Lin, Marcelo Schupbach Filing Date: April 17, 2020 Issue Date…

    View full analysis →added 7/9/2026
  • US Patent 11896675, titled "Site-specific antibody conjugation and antibody-drug conjugate as specific embodiment thereof," was issued to Abtis Co Ltd (currently listed as Atbis Co Ltd and Abtis Co Ltd) on February 13, 2024. The inventors…

    View full analysis →added 8/4/2026
  • Here's a concise summary of US Patent 11909010: US Patent 11909010 Title: Vehicular battery charger, charging system, and method with in-vehicle display of charge time Assignee: CHARGELOGIC LLC Inventor: Christopher B. Austin Filing Date…

    View full analysis →added 6/19/2026
  • I'll search for authoritative information on this specific patent number, including any 2026 CAFC activity. Let me check for any Federal Circuit 2026 activity and the parallel district court/ITC matters. US Patent 11,924,502 B2 — Analyst…

    View full analysis →added 9/28/2026
  • Here is a concise summary of US patent 11930362: Title: System and method for providing additional functionality to existing software in an integrated manner Assignee: Damaka Inc Inventors: Sivakumar Chaturvedi, Satish Gundabathula, Rashmi…

    View full analysis →added 5/12/2026
  • US Patent 11936876, titled "Methods and apparatus for signaling intra prediction for large blocks for video encoders and decoders," was issued to InterDigital VC Holdings Inc. on March 19, 2024. The application for this patent was filed on…

    View full analysis →added 5/12/2026
  • US Patent 11942624, titled "Scaffolding matrix with internal nanoparticles," was issued to Sila Nanotechnologies Inc. The patent lists inventors Gleb Yushin, Bogdan Zdyrko, Addison Shelton, Eugene Berdichevsky, Igor Luzinov, Alexander…

    View full analysis →added 6/19/2026
  • US Patent 11,959,109 — Analyst Summary Important caveat up front: I could not directly fetch the full patent text from the USPTO or Google Patents before hitting the search-step limit, so some bibliographic fields below are sourced from…

    View full analysis →added 9/9/2026
  • Here is a concise summary of US patent 11966559: Title: Selection ring user interface Assignee: Peer Global Inc Inventors: Thinh Tran Filing Date: April 5, 2023 Issue Date: April 23, 2024 Abstract: The patent describes a selection ring…

    View full analysis →added 8/18/2026
  • Here's a concise summary of US Patent 11967857: Title: Power source load control Assignee: PSLC LLC Inventors: J. Carl Cooper Filing Date: November 18, 2020 Issue Date: April 23, 2024 Abstract: A method is disclosed for controlling a load…

    View full analysis →added 5/13/2026
  • US Patent 11968909, titled "Method of manufacturing a magnetoresistive random access memory (MRAM)," was issued on April 23, 2024. The original and current assignee is Godo Kaisha IP Bridge 1. The inventor is Shinji Yuasa. The application…

    View full analysis →added 6/15/2026
  • US Patent 11973864: Concise Summary Title: Systems and methods for “machine-to-machine” (M2M) communications between modules, servers, and an application using public key infrastructure (PKI) Assignee: The current assignees are Network 1…

    View full analysis →added 5/12/2026