The catalog

Patent invalidity dossiers.

1,609 patents in the database, sorted by number of on-file litigation cases. Of these, 1,312 have at least one tracked case across 2,845 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

  • 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
  • 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
  • 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
  • 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
  • Here's a concise summary of US Patent 11971937: US Patent: 11971937 Title: Internet search results annotation, filtering, and advertising with respect to search term elements Assignee: Accusearch Technologies LLC Inventor: Robert Osann…

    View full analysis →added 5/12/2026
  • 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
  • US Patent 12005349, titled "Synchronized gaming and programming," is an active patent currently assigned to Winview IP Holdings LLC. The sole inventor listed is David B. Lockton. The patent was filed on September 29, 2021, and was…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US patent 12010174B2: Title: System and method for server based control Assignee: Smart Speaker LLC Inventors: Yehuda Binder, Benjamin Maytal Filing Date: August 23, 2021 (for application number US17/408,549)…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US patent 12011367: US Patent 12011367: Expandable Intervertebral Device Title: Expandable intervertebral device Assignee: Moskowitz Family LLC Inventors: Ahmnon D. Moskowitz, Mosheh T. Moskowitz, Pablo A…

    View full analysis →added 5/12/2026
  • US Patent 12039243, titled "Access and portability of user profiles stored as templates," was issued on July 16, 2024. The patent lists Christopher P. Ricci as the inventor. The original and current assignee is AutoConnect Holdings LLC…

    View full analysis →added 6/15/2026
  • US Patent 12071391: Title: Methods for making and using endoxifen Assignee: Krisan Biotech Co Ltd and Atossa Therapeutics Inc Inventors: Steven C. Quay, Yao-Lin Sun, Lunghu Wang, ChangJung Wu, ChuanDer Huang Filing Date: March 30, 2023…

    View full analysis →added 6/15/2026
  • US patent 12075116 has the following details: Title: Method, system and apparatus for multimedia content delivery to cable TV and satellite operators Assignee: Egla Corp Inventors: Edwin A. Hernandez-Mondragon Filing Date: October 4, 2021…

    View full analysis →added 4/27/2026
  • Here's a concise summary of US Patent 12114177: Patent Number: US12114177B2 Title: Method and apparatus for processing bandwidth intensive data streams using virtual media access control and physical layers Assignee: Xifi Networks R and D…

    View full analysis →added 5/14/2026
  • US patent 12123035 has the title "PH20 polypeptide variants, formulations and uses thereof". Here is a concise summary of the patent: Title: PH20 polypeptide variants, formulations and uses thereof Assignee: Halozyme Inc and Halozyme…

    View full analysis →added 6/25/2026
  • Here's a concise summary of US Patent 12123880: US Patent 12123880 Title: Methods for detecting AAV Assignee: Genzyme Corp. Inventors: Xiaoying Jin, Catherine O'Riordan, Lin Liu, Kate ZHANG Filing Date: May 22, 2023 Issue Date: October 22…

    View full analysis →added 5/12/2026
  • US patent 12125319, titled "Optical character recognition of voter selections for cast vote records," was issued to Hart InterCivic Inc. The patent lists James M. Canter, Drew E. Tinney, and Ievgen Konovalenko as the inventors. The filing…

    View full analysis →added 5/14/2026