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.

Log in to analyze a patent

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)
  • US11405164
    0 cases1/8 sections

    Patent Overview: US11405164B2 Title: Coordinated access point time division multiple access Patent number: US11405164B2 Application number: US17/038,121 Publication date (grant): 2022-08-02 Filing date: 2020-09-30 Priority date: 2019-10-10…

    View full analysis →added 9/23/2026
  • US11412774
    0 cases1/8 sections

    Patent Overview — US11412774B2 Title: "Tobacco mousse" Assignee: JT International SA (original and current assignee per the supplied record) Inventors: Michael Plattner, Takashi Hasegawa Key dates: Priority date 2016-12-29; filing date…

    View full analysis →added 9/21/2026
  • US11432943
    0 cases1/8 sections

    Patent Overview — US 11432943 B2 Title: Systems and methods for orthopedic implant fixation Patent number / application: US11432943B2; Application US16/352,699 (published as US20190282367A1) Assignee / inventors: Carlsmed Inc. (original…

    View full analysis →added 9/24/2026
  • US11441356
    0 cases1/8 sections

    The initial searches returned no results. Let me try broader queries. Let me check specifically for any CAFC or litigation activity involving this patent number. US Patent 11,441,356 — Analyst Summary Bibliographic Data (from the…

    View full analysis →added 8/27/2026
  • US11468757
    0 cases1/8 sections

    Patent Overview — US11468757B2 Title: Systems and methods for facilitating supervision of individuals based on geofencing Patent number / application: US11468757B2; application US16/810,703; earlier publication US20200286355A1. A related…

    View full analysis →added 10/8/2026
  • US11534031
    0 cases1/8 sections

    Patent Overview — US 11,534,031 B2 ("Sandwich crimper") Title: Sandwich crimper Patent number: US11534031B2 Inventor: Kei Tawara Current assignee (as listed): Jetteo LLC Application number: US17/037,446 Filing date: 2020-09-29 Priority…

    View full analysis →added 9/23/2026
  • US11589928
    0 cases1/8 sections

    Patent Overview: US 11,589,928 B2 Title: Artificial intelligence intra-operative surgical guidance system and method of use Patent number: US11589928B2 | Application: US16/916,876 | Publication: US20210177522A1 Assignee (current, per…

    View full analysis →added 9/24/2026
  • US11595643B2
    0 cases1/8 sections

    Patent Overview — US11595643B2 Title: Encoding method and decoding method, and device using same Patent number: US11595643B2 (application US17/707,057; earlier publication US20220224892A1) Inventors: Hui Yong KIM; Gwang Hoon Park; Kyung…

    View full analysis →added 10/10/2026
  • US116116
    0 cases1/8 sections

    Patent Overview — US116116A Title: Improvement in Machines for Sowing Pulverulent Manures Inventor: N. G. Swift, of Harts Village, County of Dutchess, State of New York Patent Date: June 20, 1871 (specification forming part of Letters…

    View full analysis →added 9/23/2026
  • US11611649
    0 cases1/8 sections

    Patent Overview — US11611649B2 Title: Method and system for communication Patent number: US11611649B2 Application number: US17/699,581 Inventor: Garin Toren Current/Original Assignee (as listed): Messageloud Inc (written "MessageLoud Inc"…

    View full analysis →added 9/23/2026
  • US11674999
    0 cases1/8 sections

    Patent Overview — US11674999B2 Title: Wafer scale active thermal interposer for device testing Patent number: US11674999B2 Assignee: Advantest Test Solutions Inc. (listed as both original and current assignee) Application number…

    View full analysis →added 10/5/2026
  • US11680274
    0 cases1/8 sections

    Patent Overview — US11680274B2 Title: Method of increasing the function of an AAV vector Patent number: US11680274B2 | Application: US16/368,758 | Publication: US20190218574A1 Assignee: University of Pennsylvania (original and current…

    View full analysis →added 10/9/2026
  • US11698667
    0 cases1/8 sections

    Patent Overview — US 11698667 B2 Title: Display panel and flexible display device Patent number: US 11698667 B2 Application number: US17/256,093 Inventors: Liqiang Chen, Xiangfei He, Weifeng Zhou Current assignees: BOE Technology Group…

    View full analysis →added 9/23/2026
  • US11729144
    0 cases1/8 sections

    US11729144B2 — Efficient Packet Capture for Cyber Threat Analysis Title: Efficient packet capture for cyber threat analysis Patent number: US11729144B2; Application No. US15/382,806; Publication US20170324709A1 Inventors: David K. Ahn…

    View full analysis →added 9/16/2026
  • US11735810
    0 cases1/8 sections

    Patent Overview: US 11,735,810 B2 Title: Multiple-body-configuration multimedia and smartphone multifunction wireless devices Patent number: US11735810B2 Application number: US17/704,942 Filed: 2022-03-25 Granted / published: 2023-08-22…

    View full analysis →added 9/23/2026
  • US11738595
    0 cases1/8 sections

    Patent Overview — US 11,738,595 B2 Title: Vehicle wheels, methods of making vehicle wheels, and dual wheel assemblies Current assignee (per listing): Howmet Aerospace Inc. (originally Arconic Inc.; change of name recorded June 3, 2020)…

    View full analysis →added 10/12/2026
  • US11744691
    0 cases1/8 sections

    Patent Overview — US 11744691 B2 Title: System for treating embolism and associated devices and methods Patent number: US11744691B2 Application number: US18/180,016 (also published as US20230218383A1) Filing date: 2023-03-07…

    View full analysis →added 9/23/2026
  • US11759915
    0 cases1/8 sections

    Patent Overview — US 11759915 B2 Title: Pneumatic latch clamp Patent number: US 11759915 B2 Application number: US17/492,620 (filed 2021-10-03) Priority date: 2021-10-03 (assumed) Publication date: 2023-09-19 (granted same date) Inventor…

    View full analysis →added 9/20/2026
  • US11771264
    0 cases1/8 sections

    Patent Overview — US 11771264 B1 Title: Multi-zone food holding bin Assignee/Original Assignee (per source): Marmon Foodservice Technologies Inc. The record also lists assignment to Prince Castle LLC (2020-12-21) and a…

    View full analysis →added 10/3/2026
  • US11775019
    0 cases1/8 sections

    Patent Overview: US11775019B2 Title: Case and mount system for handheld electronic device Patent number: US11775019B2 Application number: US17/118,371 Current assignee (as listed): Rokform IP LLC (original assignee also Rokform IP LLC)…

    View full analysis →added 10/3/2026