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
- US110411492 cases →8/8 sections
US Patent 11,041,149: PH20 Polypeptide Variants, Formulations and Uses Thereof Title: PH20 polypeptide variants, formulations and uses thereof Assignee: Halozyme Inc. (original assignee); Halozyme Therapeutics Inc. (current assignee)…
View full analysis →added 5/12/2026 - US110483002 cases →8/8 sections
As a large language model, I am unable to directly access and search external websites, including the USPTO database and CAFC dockets. Therefore, I cannot provide a real-time, up-to-the-minute analysis of the legal status and litigation…
View full analysis →added 4/27/2026 - US110807582 cases →8/8 sections
Here is a concise summary of US patent 11080758: US Patent 11080758 Summary Title: System and method for delivering targeted advertisements and/or providing natural language processing based on advertisements Assignee: VB Assets LLC…
View full analysis →added 5/14/2026 - US110877502 cases →8/8 sections
Following a detailed analysis of U.S. Patent 11,087,750 and a review of relevant legal databases, the following summary provides a concise overview of the patent's key details and claims. Summary of U.S. Patent 11,087,750 Title: Methods…
View full analysis →added 5/5/2026 - US111042452 cases →8/8 sections
A comprehensive analysis of U.S. Patent No. 11,104,245 reveals its focus on the burgeoning field of vehicle e-key technology, a technology that has also become the subject of significant patent litigation. Patent Details: Title: Vehicles…
View full analysis →added 5/12/2026 - US111197562 cases →8/8 sections
Here's a concise summary of US patent 11119756: Patent Number: US11119756B2 Title: System and method for controlling updates to internet-of-things devices Current Assignee: Malikie Innovations Ltd Original Assignee: BlackBerry Ltd…
View full analysis →added 5/12/2026 - US111511422 cases →8/8 sections
Here's a concise summary of US patent 11151142: US Patent 11151142: Platform for optimizing goal progression Title: Platform for optimizing goal progression Current Assignee: Data Health Partners Inc; Melamed Shahla Inventors: Lisa A…
View full analysis →added 6/6/2026 - US112128382 cases →8/8 sections
Summary of U.S. Patent 11,212,838 A concise summary of U.S. Patent 11,212,838 is provided below, including details on the patent's title, assignee, inventors, key dates, and a plain-language overview of its independent claims. Title…
View full analysis →added 5/14/2026 - US112513942 cases →8/8 sections
I'm sorry, but I was unable to find any information about US Patent 11251394 using the available search tools. This could be because the patent number is incorrect, or the information is not yet publicly available in the databases I can…
View full analysis →added 5/12/2026 - US112750922 cases →8/8 sections
Here's a concise summary of US Patent 11275092: US Patent 11275092 Title: Methods of determining a treatment protocol for and/or a prognosis of a patient's recovery from a brain injury Assignee: Quanterix Corp Inventors: David Wilson, John…
View full analysis →added 5/14/2026 - US112759002 cases →8/8 sections
A concise summary of US Patent 11,275,900 is as follows: Title: Systems and methods for automatically assigning one or more labels to discussion topics shown in online forums on the dark web. Assignee: Skysong Innovations LLC Inventors…
View full analysis →added 5/14/2026 - US113276692 cases →8/8 sections
Analysis of U.S. Patent No. 11,327,669 and Associated Litigation Date of Analysis: April 26, 2026 An analysis of United States Patent number 11,327,669 reveals a technology focused on providing configurable, policy-based behavior for data…
View full analysis →added 4/30/2026 - US113282862 cases →8/8 sections
The provided patent text for US11328286 contains the requested bibliographic information and a detailed description of the invention. However, it does not explicitly list the numbered claims of the patent. Therefore, I can provide a…
View full analysis →added 5/14/2026 - US113745082 cases →8/8 sections
Analysis of U.S. Patent No. 11,374,508 Date of Analysis: April 30, 2026 This report provides a summary of U.S. Patent No. 11,374,508, including its key bibliographic details and a plain-language interpretation of its independent claims…
View full analysis →added 4/30/2026 - US114433442 cases →8/8 sections
Here's a concise summary of US Patent 11443344: US Patent 11443344: Efficient and secure communication using wireless service identifiers Title: Efficient and secure communication using wireless service identifiers Current Assignee: Secure…
View full analysis →added 5/14/2026 - US115004962 cases →8/8 sections
Here's a concise summary of US patent 11500496: Title: Display device [cite: The full patent text is provided in the prompt.] Assignee: Samsung Display Co Ltd [cite: The full patent text is provided in the prompt.] Inventors: Chiwook AN…
View full analysis →added 5/14/2026 - US115052312 cases →8/8 sections
US Patent 11505231, titled "Removable seat attachment for a stroller," was filed on July 29, 2022, and issued on November 22, 2022. The inventor is Mark Zehfuss. The original assignee was Baby Jogger LLC, with the current assignee being…
View full analysis →added 5/14/2026 - US115168792 cases →8/8 sections
US patent 11516879, titled "Wireless communication method using enhanced distributed channel access, and wireless communication terminal using same," was issued on November 29, 2022, from an application filed on July 23, 2021. The current…
View full analysis →added 5/14/2026 - US115891422 cases →8/8 sections
A concise summary of US Patent 11,589,142 is as follows: Title: Mutually secure optical data network and method Assignee: While the patent document lists "Individual" as the original and current assignee, related legal filings from the…
View full analysis →added 5/14/2026 - US115899692 cases →8/8 sections
Here's a concise summary of US Patent 11589969: US Patent 11589969 Summary Title: Intraoral device with mesh Assignee: Solmetex LLC (Original Assignee); Current Assignee: Incept Inc, Solmetex LLC Inventors: Thien Nguyen, Tam Thanh Pham…
View full analysis →added 5/14/2026