The catalog

Patent invalidity dossiers.

7,175 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)

US10341937
0 cases1/8 sections
Patent Overview — US 10341937 B2 Title: Dead zone for wireless communication device Patent number / application: US 10341937 B2; Application US 15/910,190; pre-grant publication US 20180192353 A1. Inventor: Paul R. Juhasz. Original…
View full analysis →added 9/23/2026
US10386230
0 cases1/8 sections
US10386230B1 — "Near-infrared time-of-flight remote sensing" Source: https://patents.google.com/patent/US10386230/en Bibliographic data (from excerpt) - Patent number: US10386230B1; application US16/188,194 - Inventor: Mohammed N. Islam -…
View full analysis →added 9/22/2026
US10390734
0 cases1/8 sections
US10390734B2 — Systemic Biomarker Sampling Apparatus Bibliographic data (from supplied excerpt) - Title: Systemic biomarker sampling apparatus - Patent number: US10390734B2; application US14/726,320; pre-grant publication US20160345864A1 -…
View full analysis →added 9/23/2026
US10390969
0 cases1/8 sections
Patent Overview — US10390969B2 Title: "Bi-directional fixating transvertebral body screws and posterior cervical and lumbar interarticulating joint calibrated stapling devices for spinal fusion." Patent number / application: US10390969B2…
View full analysis →added 9/23/2026
US10405157
0 cases1/8 sections
Patent Overview: US10405157B2 Title: System and method for provisioning user computing devices based on sensor and state information Patent number: US10405157B2 Application number: US16/130,070 Inventor: Shamim A. Naqvi Original assignee…
View full analysis →added 10/14/2026
US10430811
0 cases1/8 sections
Patent Overview — US10430811B1 Title: "Transaction-specific customer survey system" (source as given). Assignee/Applicant: Afterwords, Inc. (named as original and current assignee in the supplied text). Inventors: Steven A. Roberts and…
View full analysis →added 10/6/2026
US10469555
0 cases1/8 sections
Patent Overview: US 10,469,555 B2 Title: Apparatus, system, and method for multi-bitrate content streaming Patent number: US10469555B2 Application number: US16/252,356 Publication of application: US20190158561A1 (2019-05-23) Filing date…
View full analysis →added 9/23/2026
US10477605
0 cases1/8 sections
Patent Overview — US10477605B2 Title: "Associated device discovery in IMS networks" Assignee: Aylus Networks Inc. (current and original assignee per the listed data). Inventors: Shamim A. Naqvi, Prasad S. Dorbala, Ellis L. Wong, Mahesh N…
View full analysis →added 10/14/2026
US10496554
0 cases1/8 sections
Patent Overview: US10496554B2 Title: System on chip and method of executing a process in a system on chip Patent number: US10496554B2 (application US14/194,862; pre-grant publication US20150248358A1) Current assignee (as listed): NXP USA…
View full analysis →added 9/23/2026
US10512363
0 cases1/8 sections
Patent Overview — US10512363B2 Title: Multi-zone food holding bin Assignee (per source): Current assignee listed as Marmon Foodservice Technologies Inc; original assignee Prince Castle LLC. Key dates: Priority date 2016-04-20; application…
View full analysis →added 10/3/2026
US10514711
0 cases1/8 sections
Patent Overview — US10514711B2 Title: Flight control using computer vision Assignee/Current Assignee (as listed): Airspace Defense Inc; Original Assignee: Airspace Systems Inc. Inventors: Guy Bar-Nahum, Hong-Bin Yoon, Karthik Govindaswamy…
View full analysis →added 10/7/2026
US10521671
0 cases1/8 sections
Patent Overview: US10521671B2 Title: Methods and systems of spatiotemporal pattern recognition for video content development Patent Number: US10521671B2 | Application: US15/586,379 Assignee: Original assignee Second Spectrum Inc; current…
View full analysis →added 9/23/2026
US10537442
0 cases1/8 sections
Patent Overview: US10537442B2 Title: Bidirectional fixating intervertebral implant system Patent number: US10537442B2 (application US15/944,117; publication US20180221173A1) Assignee: Moskowitz Family LLC (original and current assignee)…
View full analysis →added 9/24/2026
US10544228
0 cases1/8 sections
Patent Overview — US10544228B2 Title: Nucleic acids encoding antibody polypeptides that antagonize CD40 Source: https://patents.google.com/patent/US10544228/en Bibliographic data (as shown in the excerpt): Patent number US10544228B2…
View full analysis →added 9/21/2026
US10550085
0 cases1/8 sections
Patent Overview — US 10,550,085 B2 Title: Deuterated compounds and uses thereof Patent number: US10550085B2 (application US15/754,065; also published as US20180354905A1) Assignee: Aldeyra Therapeutics, Inc. (listed as both original and…
View full analysis →added 9/23/2026
US10583449
0 cases1/8 sections
Patent Overview — US10583449B1 Title: Fluid dispersion assembly Patent number: US10583449B1 (application US16/154,373, filed 2018-10-08; granted/published 2020-03-10) Assignee: Air Esscentials Inc (original and current assignee per the…
View full analysis →added 10/7/2026
US10591115
0 cases1/8 sections
Patent Overview — US10591115B2 Title: Retrofit kit and methods for conversion of fluorescent light assemblies to LED assemblies Patent number: US10591115B2 Application number: US15/679,464 Inventor: Alessandro OSSI Original/Current…
View full analysis →added 9/23/2026
US10609527
0 cases1/8 sections
Patent Overview: US10609527B2 Title: System and method for control and management of resources for consumers of information Patent number: US10609527B2 | Application number: US16/243,436 | Inventor: Shamim A. Naqvi Assignee: Current…
View full analysis →added 10/14/2026
US10610273
0 cases1/8 sections
Patent Overview — US 10,610,273 B2 Title: Bone plate with transverse screw Patent number: US 10,610,273 B2 Application number: US 15/795,039 Publication of application: US 2018/0125548 A1 Inventors: Alan G. Taylor; Rebecca Hawkins Wahl…
View full analysis →added 9/23/2026
US10612096
0 cases1/8 sections
Patent Overview: US10612096B2 Title: Methods for determining fraction of fetal nucleic acids in maternal samples Patent number: US10612096B2 | Application: US15/299,335 | Publication: US20170037474A1 Assignee/Inventor info (as listed)…
View full analysis →added 9/23/2026