The catalog

Patent invalidity dossiers.

1,391 patents in the database, sorted by number of on-file litigation cases. Of these, 1,137 have at least one tracked case across 2,473 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

  • A non-volatile storage device with an oxide/nitride sidewall is disclosed in U.S. Patent No. 9,281,314 B1. The patent, assigned to Palisade Technologies LLP, aims to improve the performance and reliability of memory devices by using a…

    View full analysis →added 5/12/2026
  • Summary of U.S. Patent 9,313,101 Title: Method of controlling traffic by time-based policy Assignee: Electronics and Telecommunications Research Institute Inventors: Sang Wan KIM, Joon Kyung LEE, Dong Won KANG, Wang Bong Lee, Sang Kil…

    View full analysis →added 4/30/2026
  • US Patent 9320041, titled "Dynamic carrier assignment of carrier aggregation in an LTE-advanced system," was filed on October 12, 2012, and issued on April 19, 2016. The inventor is Anpeng Huang. Based on the latest assignment record, the…

    View full analysis →added 4/27/2026
  • Patent Information I am unable to directly access and search the USPTO database or CAFC dockets. However, I can provide a summary of U.S. Patent 9,352,229 based on the information that is publicly available. Here is a summary of U.S…

    View full analysis →added 5/9/2026
  • Here is a concise summary of US patent 9491564: Patent Number: US9491564 Title: Mobile device and method with secure network messaging for authorized components Assignee: The current assignee is Headwater Research LLC. The original…

    View full analysis →added 5/12/2026
  • Patent Analyst Report: US 9,507,477 B2 Date of Analysis: 2026-05-13 Subject: United States Patent 9,507,477 B2, "Display device" This report provides a concise summary of US patent 9,507,477, including its key bibliographic details and a…

    View full analysis →added 5/13/2026
  • An analysis of U.S. Patent 9,518,604 reveals the following information. Title: Fluid bearings Assignee: Metso Finland Oy Inventors: Daniel Braithwaite, Jeffrey Victor Belke, Nicholas John Green, Chris Tate, Oscar Harrison, Knut Vaage…

    View full analysis →added 5/14/2026
  • Summary of U.S. Patent 9524974: Alternating Sidewall Assisted Patterning This report provides a concise summary of United States Patent 9,524,974, including its key bibliographic details and an overview of its independent claims. The…

    View full analysis →added 5/12/2026
  • Analysis of U.S. Patent 9,667,337 Date of Analysis: April 26, 2026 This report provides a concise summary of United States Patent 9,667,337, including its key bibliographic information and a plain-language overview of its independent…

    View full analysis →added 5/12/2026
  • Patent Analysis: US 9737072 Date of Analysis: 2026-05-14 Summary Title: Methods and compositions for the generation of peracetic acid on site at the point-of-use Assignee: Enviro Tech Chemical Services Inc Inventors: Michael S. Harvey…

    View full analysis →added 5/14/2026
  • A detailed analysis of U.S. Patent 9,794,797 reveals a system for managing and optimizing wireless network resources through economic principles and hierarchical structures. The patent, which is the subject of current litigation, outlines…

    View full analysis →added 4/30/2026
  • US patent 9860450, titled "Method and apparatus to correct digital video to counteract effect of camera shake," has the following details: Title: Method and apparatus to correct digital video to counteract effect of camera shake Assignee…

    View full analysis →added 5/12/2026
  • US Patent 9905691B2, titled "Method for depinning the fermi level of a semiconductor at an electrical junction and devices incorporating such junctions," was issued on February 27, 2018. The patent lists Daniel E. Grupp and Daniel J…

    View full analysis →added 5/14/2026
  • Here is a concise summary of US patent 10098402, based on the provided authoritative patent text (fetched 2026-05-31): US Patent 10,098,402 Summary Title: Energy absorbing football helmet Assignee: Individual Inventors: Benjamin V. Booher…

    View full analysis →added 4/27/2026
  • US patent 10379539, titled "Systems and methods for dynamic route planning in autonomous navigation," was issued to Brain Corp. The inventors are Borja Ibarz Gabardos and Jean-Baptiste Passot. The patent was filed on June 18, 2018, and…

    View full analysis →added 5/12/2026
  • Concise Summary of US Patent 10469980 Title: Mashing mapping content displayed on mobile devices Assignee: Current: Nearby Systems LLC Original: Empire IP LLC Inventors: Gabriel Jakobson, Steven L. Rueben Filing Date: November 8, 2016 (for…

    View full analysis →added 5/20/2026
  • Here's a concise summary of US Patent 10624575: Title: Monitoring sleep using microactivity states Assignee: Zepp North America Inc.; Anhui Huami Health Technology Co., Ltd. Inventors: Feifei Zhang; Xiaoming Ren Filing Date: 2017-04-26…

    View full analysis →added 4/27/2026
  • Here is a concise summary of US Patent 10,681,946. Summary of US Patent 10,681,946 Title: Headband with protective insert Assignee: Based on the information available, the patent is assigned to an "Individual." Inventors: Shane Michael…

    View full analysis →added 4/27/2026
  • US patent 10810579, titled "Smart tokenizing payment card and device and transaction processing thereof, system and method," has the following details: Assignee: Virtual Electric Inc (Original Assignee); CardWare Inc (Current Assignee via…

    View full analysis →added 5/14/2026
  • US Patent 10,874,304: Near Infrared Measurement Device with Enhanced Signal-to-Noise Ratio Title: Semiconductor source based near infrared measurement device with improved signal-to-noise ratio Assignee: Omni Medsci Inc Inventor: Mohammed…

    View full analysis →added 5/13/2026