The catalog
Patent invalidity dossiers.
7,248 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
- US78446870 cases1/8 sections
Patent Overview — US7844687B1 Title: Method for internetworked hybrid wireless integrated network sensors (WINS) Patent number: US7844687B1 Application number: US09/684,742 Filing date: 2000-10-04 Priority date: 1999-10-06…
View full analysis →added 9/20/2026 - US78491980 cases1/8 sections
Patent Overview: US7849198B2 Title: System, method and article of manufacture for utilizing an interface client in an interface roaming network framework Patent Number: US7849198B2 Application Number: US12/536,015 Filing Date: 2009-08-05…
View full analysis →added 9/17/2026 - US78655570 cases1/8 sections
Patent Overview — US 7,865,557 B2 Title: System and method for verifying delivery and integrity of electronic messages Patent number: US7865557B2 | Application: US11/725,210 | Filed: 2007-03-16 | Granted/Published: 2011-01-04 | Priority…
View full analysis →added 9/23/2026 - US78685510 cases1/8 sections
Patent Overview — US 7,868,551 B2 Title: Fluorescent tube having an increasing internal diameter, a method of driving the fluorescent tube, an illuminating device for display device, and a display device having the illuminating device…
View full analysis →added 9/23/2026 - US78700500 cases1/8 sections
Patent Overview — US 7,870,050 B2 Title: System and method for an efficient dynamic multi-unit auction Source: https://patents.google.com/patent/US7870050/en Bibliographic facts (as supplied): Inventor Lawrence M. Ausubel. Current assignee…
View full analysis →added 9/23/2026 - US78774940 cases1/8 sections
Patent Overview: US7877494B2 Title: Method, components and system for tracking and controlling end user privacy Assignee: InterDigital Technology Corporation (original and current assignee listed). Inventors: Alan G. Carlton, Alan Charles…
View full analysis →added 9/23/2026 - US78812130 cases1/8 sections
Patent Overview — US7881213B2 Title: Methods and apparatus for fibre channel interconnection of private loop devices Patent number / application: US7881213B2; application US10/289,241, filed 2002-11-05; published as US20030086377A1 on…
View full analysis →added 9/23/2026 - US78838480 cases1/8 sections
Patent Overview: US 7,883,848 B2 — "Regulation analysis by cis reactivity, RACR" Bibliographic data (as supplied) - Inventor: Olof Ericsson - Original assignee: Olink AB; current assignee listed as Olink Proteomics AB - Priority date…
View full analysis →added 10/22/2026 - US78852860 cases1/8 sections
Patent Overview — US7885286B2 Title: "Method and arrangements in an IP network" Patent number / application: US7885286B2; application US11/315,293, filed 2005-12-23. Publication date 2011-02-08. Priority date listed as 2005-12-23 (Google…
View full analysis →added 9/23/2026 - US78859930 cases1/8 sections
Patent Overview: US7885993B2 Title: Communication apparatus, communication method, electronic apparatus, control method for controlling electronic apparatus, and storage medium Patent Number: US7885993B2 Assignee: Sony Corp (current and…
View full analysis →added 9/24/2026 - US78860690 cases1/8 sections
Patent Overview — US 7,886,069 B2 Title: "Video distribution system including progressive playback" Patent number / application: US 7,886,069 B2; application US 11/970,493, filed 2008-01-07. Inventor: Roland Osborne. Assignee: Original…
View full analysis →added 9/23/2026 - US78946110 cases1/8 sections
Patent Overview — US 7,894,611 B2 Title: Spatial disassembly processor Assignee: Bose Corporation (original assignee Bose Corp) Inventors: Paul E. Beckmann; Finn A. Arnold Priority date: 1994-04-15 Filing date: 2009-12-07 (application…
View full analysis →added 9/23/2026 - US78956410 cases1/8 sections
Patent Overview: US 7,895,641 B2 Title: Method and system for dynamic network intrusion monitoring, detection and response Assignee (current, per listing): BT Americas Inc; original assignee BT Counterpane Internet Security Inc. (I do not…
View full analysis →added 10/29/2026 - US79036400 cases1/8 sections
US 7,903,640 — Patent Overview Title: System and method for voice over internet protocol using a standard telephone system Patent number: US 7,903,640 B2 Application number: US 12/145,122 Inventors: John P. Ruckart; Rimas J. Rauba Assignee…
View full analysis →added 9/23/2026 - US79133030 cases1/8 sections
Patent Overview: US 7,913,303 B1 Title: Method and system for dynamically protecting a computer system from attack Patent number: US 7,913,303 B1 Application number: US10/400,938 Filing date: 2003-03-27 Priority date (as listed)…
View full analysis →added 9/21/2026 - US79210280 cases1/8 sections
Patent Overview: US7921028B2 Title: Systems and methods of partnering content creators with content partners online Assignee (as listed): Original assignee Hewlett-Packard Development Company, L.P. (source lists current assignee as…
View full analysis →added 10/21/2026 - US79299020 cases1/8 sections
Patent Overview — US7929902B1 Title: Virtual wireless multitrack recording system Patent number: US7929902B1 Application number: US11/404,735 Assignee: Zaxcom Inc (original and current assignee per the supplied text) Inventors: Glenn…
View full analysis →added 9/23/2026 - US79332930 cases1/8 sections
US 7,933,293 B2 — Patent Overview Title: Link margin notification using return frame Inventor: Menzo Wentink Application: US 10/880,366, filed 2004-06-30; granted 2011-04-26 Priority date (as listed): 2002-06-12 (claimed from US…
View full analysis →added 10/31/2026 - US79365530 cases1/8 sections
Patent Overview — US 7,936,553 B2 Title: Capacitors adapted for acoustic resonance cancellation Patent number / application: US 7,936,553 B2; application US 11/726,458, filed 2007-03-22; granted 2011-05-03. Publication US 2008/0232023 A1…
View full analysis →added 9/23/2026 - US79373800 cases1/8 sections
Patent Overview: US7937380B2 Title: System and method for recommended events Patent number: US7937380B2 Application number: US11/615,544 Inventors: Michael Spiegelman; William MacDonald White Original assignee: Yahoo! Inc. (current…
View full analysis →added 9/21/2026