The catalog
Patent invalidity dossiers.
7,246 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 patent
Drop a US patent number — we’ll verify it on Google Patents and generate the full invalidity dossier.
By industry
US Patent 8630699, titled "Body worn physiological sensor device having a disposable electrode module," was issued on January 14, 2014, from an application filed on June 5, 2012. The original assignee is Welch Allyn Inc., with inventors…
View full analysis →added 5/14/2026I 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 5/12/2026US Patent 8667304: Methods and Apparatuses for Secondary Conditional Access Server Title: Methods and apparatuses for secondary conditional access server Assignee: VIDEOLABS Inc. (Current Assignee), Digital Keystone Inc (Original Assignee)…
View full analysis →added 5/14/2026Patent 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 4/30/2026I 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 5/14/2026US 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 5/14/2026Analysis 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 5/11/2026US Patent 8959146: Media Properties Selection Method and System Based on Expected Profit from Profile-Based Ad Delivery Patent Number: US8959146B2 Title: Media properties selection method and system based on expected profit from…
View full analysis →added 5/14/2026US 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 5/14/2026US Patent 9482632, titled "Abnormality detection device," was filed on September 4, 2013, and issued on November 1, 2016. [cite: The full patent text confirms these dates] The sole inventor listed is Jun Yokoyama. [cite: The full patent…
View full analysis →added 5/14/2026US 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 6/15/2026Summary — U.S. Patent No. 9,661,049 (US9661049B2) Note on sources: I searched for this patent on USPTO/Google Patents and for CAFC 2026 docket activity. The Google Patents record for US9661049B2 was confirmed (title, dates, assignee…
View full analysis →added 8/27/2026Analysis of U.S. Patent No. 9,824,035 Date of Analysis: May 13, 2026 This report provides a summary of United States Patent No. 9,824,035, including its bibliographic details and a plain-language explanation of its independent claims…
View full analysis →added 5/12/2026Here 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- USUS57685283 cases →8/8 sections
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 - USUS8942252B23 cases →8/8 sections
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 - US102217803 cases →7/8 sections
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 - US102370673 cases →7/8 sections
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 - US106744323 cases →7/8 sections
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 - US107353203 cases →7/8 sections
US Patent 10735320, titled "Application wire," was issued on August 4, 2020, from an application filed on August 8, 2019. The patent is currently assigned to K Mizra LLC, and the inventors are Ping Pan and Richard D. Gitlin. Abstract: The…
View full analysis →added 5/14/2026