The catalog

Patent invalidity dossiers.

1,809 patents in the database, sorted by number of on-file litigation cases. Of these, 1,391 have at least one tracked case across 3,023 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

  • I have completed the first step of searching for the patent in the USPTO databases. I will now proceed with the analysis of the patent information and its claims. I do not need to perform another search at this time. Here is a summary of…

    View full analysis →added 5/12/2026
  • Patent Analysis: US 8,738,103 B2 Date of Analysis: April 30, 2026 Patent Number: 8,738,103 Title: Multiple-body-configuration multimedia and smartphone multifunction wireless devices Key Information Assignee: Fractus, S.A. Inventors…

    View full analysis →added 4/30/2026
  • I am providing a concise summary of US Patent 8796779 and will then search for related litigation. US Patent 8796779 Summary: Title: Semiconductor device Assignee: Advanced Integrated Circuit Process LLC (Current Assignee as of 2024-07-30)…

    View full analysis →added 5/14/2026
  • US patent 8860337, titled "Linear vibration modules and linear-resonant vibration modules," was issued to Resonant Systems Inc. on October 14, 2014, from an application filed on January 6, 2012. The inventors are Robin Elenga, Brian Marc…

    View full analysis →added 5/14/2026
  • Analysis of U.S. Patent 8,949,206 Date of Analysis: May 11, 2026 Patent Number: 8,949,206 B2 --- I. Bibliographic Information Title: System and method for creating multiple versions of a descriptor file Assignee: The most recent assignee…

    View full analysis →added 5/11/2026
  • US patent 9051542 has the following details: Title: Compositions and methods to prevent AAV vector aggregation Assignee: Genzyme Corp. Inventors: John Fraser Wright and Guang Qu Filing Date: 2010-03-19 Issue Date: 2015-06-09 Abstract: The…

    View full analysis →added 5/14/2026
  • US Patent 9,592,660 Summary Title: Heated build platform and system for three dimensional printing methods Current Assignee: Stratasys Inc. (formerly Arevo Inc.) Inventors: Riley Reese, Hemant Bheda Filing Date: December 17, 2014 Issue…

    View full analysis →added 6/15/2026
  • Here is a concise summary of US Patent RE48633. Title: System and method for creating and managing a virtualized computing system Assignee: Kaavo Inc. Inventors: Neil Ramchandani, Siddalingesh Salimath Filing Date: September 14, 2018 Issue…

    View full analysis →added 4/27/2026
  • Analysis of U.S. Patent No. 5,768,528 Date of Analysis: April 26, 2026 Patent Information: Title: Client-server system for delivery of online information Assignee: The provided information indicates the original assignee was V Cast Inc…

    View full analysis →added 4/28/2026
  • Summary of U.S. Patent US8942252B2 A concise summary of U.S. Patent US8942252B2 is provided below, based on a search of the USPTO database. Title: Method and system synchronization of content rendering Assignee: IMPLICIT LLC. Records also…

    View full analysis →added 4/27/2026
  • Summary of US Patent 10221780: Dual Fuel Lockout Switch for Generator Engine Title: Dual fuel lockout switch for generator engine Assignee: Champion Power Equipment Inc. (originally assigned to Champion Engine Technology, LLC, then…

    View full analysis →added 5/14/2026
  • US Patent 10237067 is titled "Apparatus for voice assistant, location tagging, multi-media capture, transmission, speech to text conversion, photo/video image/object recognition, creation of searchable metatags/contextual tags, storage and…

    View full analysis →added 5/14/2026
  • US patent 10674432: "Mobile device mode enablement responsive to a proximity criterion" Assignee: Telcom Ventures LLC Inventors: Peter D. Karabinis, Rajendra Singh Filing Date: 2019-01-18 Issue Date: 2020-06-02 Abstract: The patent…

    View full analysis →added 5/14/2026
  • US Patent 10793916, titled "Systems and methods to detect rare mutations and copy number variation," was issued to Guardant Health Inc. The sole inventor listed is AmirAli Talasaz. The patent was filed on September 18, 2019, and granted…

    View full analysis →added 5/14/2026
  • US Patent 10,796,296 Summary Title: Kit, system and associated method and service for providing a platform to prevent fraudulent financial transactions Assignee: Paygeo LLC Inventors: Rabih S. Ballout Filing Date: May 22, 2020 Issue Date…

    View full analysis →added 5/13/2026
  • Here is a concise summary of US patent 10828345: Patent Number: US10828345B2 Title: Use of a VEGF antagonist to treat angiogenic eye disorders Assignee: Regeneron Pharmaceuticals Inc. Inventor: George D. Yancopoulos Filing Date: 2018-10-12…

    View full analysis →added 5/14/2026
  • US Patent 10841248 Summary Title: Connection specific selection of automated response messages Assignee: CEDARWOOD VENTURES, INC. Inventors: Loralee Hajdu, Oliver Hajdu Filing Date: April 11, 2018 Issue Date: November 17, 2020 Abstract…

    View full analysis →added 4/27/2026
  • Here's a concise summary of US patent 11376136: Title: Expandable spinal implant and tool system Assignee: Moskowitz Family LLC Inventors: Ahmnon D. Moskowitz, Pablo A. Valdivia Y. Alvarado, Mosheh T. MOSKOWITZ, Nathan C. Moskowitz Filing…

    View full analysis →added 5/12/2026
  • US Patent 11451883, titled "Method of and system for managing client resources and assets for activities on computing devices," was issued on September 20, 2022. The current assignee is Winview IP Holdings LLC, with the original assignee…

    View full analysis →added 5/12/2026
  • A concise summary of US Patent 11,516,643 is as follows: Title: Connection specific selection of automated response messages Assignee: CEDARWOOD VENTURES, INC. Inventors: Loralee Hajdu, Oliver Hajdu Filing Date: November 14, 2020 Issue…

    View full analysis →added 4/27/2026