The catalog

Patent invalidity dossiers.

7,163 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 letter →

Analyze a patent

Drop a US patent number — we’ll verify it on Google Patents and generate the full invalidity dossier.

By industry

Software Technology & Computing Systems (T)(1343)Medical (M)(713)High-Tech (T)(550)Wireless Technologies(508)Semiconductor (T)(386)Automotive (A)(298)Industrial Manufacturing (IM)(295)Media & Broadcasting (T)(189)Biotechnology(153)Energy (E)(147)Optical Technology(144)Financial Technology (FT)(132)Sporting Goods (S)(84)Other (O)(73)Audio Technology(66)Consumer Durables(56)Home Appliance (HA)(48)Lighting (L)(47)Footwear(37)Agriculture (AG)(36)Firearms (F)(36)Gaming (G)(36)Food (FD)(35)Railroad(33)Home Security(31)Optical Communication(22)Audience Measurement(19)Plumbing(16)Baby Products(12)Printing Technology(10)Fire Safety (FS)(6)Retail Security(6)Telecommunications(5)Tech (T)(4)Aerospace(3)Aerospace (AS)(3)Printing Technology (P)(3)Aerospace (A)(2)Construction (C)(2)Printing (P)(2)Retail Technology (RT)(2)Telecommunications (T)(2)Telecommunications (TC)(2)Toys(2)Advertising (AD)(1)Aerospace (Ae)(1)Aviation(1)Aviation (AV)(1)Building & Construction(1)Building Construction (BC)(1)Building Materials(1)Chemical (C)(1)Chemical Sensing(1)Cosmetics (C)(1)Data Communication(1)Document Security(1)Electrical Components(1)Environmental Monitoring (EM)(1)Fencing(1)Fire Safety(1)Furniture (F)(1)High-Tech(1)Logistics (L)(1)Logistics & Shipping(1)Marine (M)(1)Maritime Logistics(1)Musical Instruments (MI)(1)Networking (N)(1)Office Equipment(1)Office Equipment (OE)(1)Paints & Coatings(1)Pet Products(1)Printing(1)Printing Technology (PT)(1)Retail Technology(1)Retail Technology (R)(1)Software Technology (T)(1)Textiles(1)Textiles (TX)(1)Tobacco (TB)(1)Vaping (V)(1)Video Surveillance(1)Video Technology(1)Water Treatment(1)
  • I could not find US patent 12231426 in the USPTO database with the provided search results. The USPTO search guidelines indicate that utility patent numbers consist of six, seven, or eight digits, and require entering leading zeros for…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US patent 12233871: Title: Vehicle gear selection control Assignee: Bulletproof Property Management LLC Inventor: Bennet Langlotz Filing Date: 2024-10-27 Issue Date: 2025-02-25 Abstract: A motor vehicle is…

    View full analysis →added 5/12/2026
  • US Patent 12234510B2: Concise Summary Title: Varietal counting of nucleic acids for obtaining genomic copy number information Assignee: Cold Spring Harbor Laboratory Inventors: James Hicks, Nicholas Navin, Jennifer Troge, Zihua Wang…

    View full analysis →added 5/14/2026
  • Here is a concise summary of US Patent 12236728: US Patent Number: 12236728 Title: Method and system for logging vehicle behaviour Assignee: Auto Telematics Ltd Inventor: Andrew William Wright Filing Date: May 28, 2024 Issue Date: February…

    View full analysis →added 6/15/2026
  • US Patent 12238815 Summary Here is a summary of US Patent 12238815, "Method and system for using a situational network": Title: Method and system for using a situational network Assignee: Sitnet LLC Inventors: Thomas Cona, Patrick T. Igoe…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US patent 12240054: US Patent Number: 12240054B2 Title: Method and arrangement for generating a laser beam having a differing beam profile characteristic by a multi-clad fiber Assignee: Trumpf Laser und…

    View full analysis →added 5/12/2026
  • I'll run targeted searches for this patent number and any associated 2026 litigation/docket activity. Let me check the litigation/docket references associated with this patent and any Federal Circuit activity. Let me check for any Federal…

    View full analysis →added 9/30/2026
  • I'll search for authoritative records on this patent number and any 2026 CAFC/USPTO activity. Let me search for 2026 litigation activity and the actual claim text. Let me verify the ITC investigation and get the exact claim text. US Patent…

    View full analysis →added 9/30/2026
  • Here is a concise summary of US patent 12240457: US Patent Number: US12240457B1 Title: Vehicle gear selection control Assignee: Bulletproof Property Management LLC Inventor: Bennet Langlotz Filing Date: October 27, 2024 (for application…

    View full analysis →added 5/12/2026
  • Here is a concise summary of US patent 12243948: Title: Microstructure enhanced absorption photosensitive devices Assignee: W& W Sens Devices (Current Assignee), W&w Sens Devices Inc (Original Assignee) Inventors: Shih-Yuan Wang, Shih-Ping…

    View full analysis →added 5/14/2026
  • Here is a concise summary of US patent 12245325: US Patent: 12245325 Title: Method and system for using a situational network Assignee: Sitnet LLC Inventors: Thomas Cona, Patrick T. Igoe, Leonid Kravets, Edward A. Ehrlacher Filing Date…

    View full analysis →added 5/12/2026
  • I'll verify current bibliographic and litigation status with targeted searches, then summarize. Verification note before the summary I searched for the literal identifiers US 12,245,952 / US12245952B2 and US 18/754,101. Results confirm the…

    View full analysis →added 9/24/2026
  • US patent 12245997, titled "Endoxifen for the treatment of bipolar I disorder," was issued to Jina Pharmaceuticals Inc. on March 11, 2025. The patent application was filed on April 9, 2021. The inventors listed are Ateeq Ahmad, Imran…

    View full analysis →added 5/12/2026
  • US patent 12250452, titled "Real time assessment of picture quality," was invented by Ishay Sivan and is currently assigned to Snapaid Ltd. The patent application was filed on April 26, 2023, and the patent was granted and published on…

    View full analysis →added 5/14/2026
  • I'll search for authoritative information on US 12251320 from USPTO and litigation sources. Patent Identification: US 12,251,320 Literal identifier check: Searched for 12251320 / "12,251,320" as an exact string. Results consistently…

    View full analysis →added 9/17/2026
  • Here's a concise summary of US Patent 12268265: Patent Number: US12268265B2 Title: Safety helmet Assignee: Klein Tools Inc. Inventors: Shantanu Deshpande, Kingston Wong Filing Date: July 1, 2022 (for application US17/856,628) Issue Date…

    View full analysis →added 5/13/2026
  • A concise summary of US patent 12268397 is provided below: US Patent 12268397: Bone cutting guide systems and methods Title: Bone cutting guide systems and methods Assignee: Treace Medical Concepts Inc Inventors: Paul Dayton, Robert D…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US Patent 12,268,428 B2: Title: Tarsal-metatarsal joint procedure utilizing fulcrum Assignee: Treace Medical Concepts Inc. Inventors: F. Barry Bays, Robert D. Santrock, Paul Dayton, Daniel J. Hatch, W. Bret…

    View full analysis →added 5/12/2026
  • Here's a concise summary of US Patent 12274481: US Patent Number: 12274481B2 Title: Bone positioning and preparing guide systems and methods Assignee: Treace Medical Concepts Inc [cite: Original Assignee] Inventors: Robert D. Santrock…

    View full analysis →added 5/12/2026
  • I'll run targeted searches for this exact patent number in USPTO and CAFC 2026 docket sources before summarizing. No CAFC hits for this patent number so far. Let me check the USPTO-side record directly. US Patent 12,276,396 — Verification…

    View full analysis →added 9/8/2026