The catalog
Patent invalidity dossiers.
7,241 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
US Patent 7435608 — Search Results and Summary Search results / source status - USPTO / Google Patents record confirmed: The patent record exists and matches the full text supplied. Key corroborating sources: Google Patents…
View full analysis →added 9/3/2026Based on the authoritative full-text of US 7,438,397 B2 (provided in the prompt) plus web searches of USPTO records, Google Patents, Justia, Unified Patents, and secondary litigation sources, here is the summary. Note that my live searches…
View full analysis →added 9/7/2026Summary — U.S. Patent No. 7,440,559 (US7440559B2) I located the patent in USPTO/Google Patents records and confirmed its status in 2026 PTAB/CAFC proceedings. Verbatim claim text below is taken from the CAFC opinion (which quotes the…
View full analysis →added 9/3/2026I'll research US 7469381 across the sources you specified. Now let me check for any CAFC 2026 docket activity involving this patent. Let me pin down the independent claims and check for any 2026 CAFC docket specifically naming this patent…
View full analysis →added 9/30/2026US Patent 7,477,410 (US7477410B1), titled "Distributed computer architecture and process for virtual copying," was invented by Laurence C. Klein. The patent's application was filed on June 24, 2004, and it was issued on January 13, 2009…
View full analysis →added 5/10/2026US patent 7483399, titled "Signaling MPLS over RPR rings," was filed on February 20, 2003, and issued on January 27, 2009. The original assignee was "Individual," and the current assignee is listed as Quicker Connections LLC. The inventors…
View full analysis →added 7/29/2026I'll search for the specific patent number and any related litigation or docket activity. Let me run a couple more targeted searches to check for any litigation or PTAB activity specifically involving this patent. US 7,554,357 B2 — Summary…
View full analysis →added 9/27/2026Here is a concise summary of US patent 7558260, based on the provided authoritative patent text and a search for 2026 CAFC dockets: US Patent 7558260: Byte-timeslot-synchronous, dynamically switched multi-source-node data transport bus…
View full analysis →added 7/21/2026I'll search for this specific patent number and any 2026 CAFC docket activity. Let me check for claims text and any 2026 appellate docket activity. Let me retrieve the full issued claim set to accurately summarize the independent claims…
View full analysis →added 9/28/2026Here is a concise summary of US Patent 7623033: Title: Methods and systems for tracking items using a sensor web Assignee: Current Assignee: Federal Express Corp (as of 2024-07-08, following a merger from FEDEX CORPORATE SERVICES, INC.)…
View full analysis →added 6/26/2026US Patent 7631346, titled "Method and system for a runtime user account creation operation within a single-sign-on process in a federated computing environment," was assigned to International Business Machines Corp. The inventors are…
View full analysis →added 6/15/2026Here's a concise summary of US Patent 7634409: US Patent 7634409: Dynamic Speech Sharpening Title: Dynamic speech sharpening Current Assignee: Dialect LLC Inventors: Robert A. Kennewick, Min Ke, Michael Tjalve, Philippe Di Cristo Filing…
View full analysis →added 5/14/2026I'll search for authoritative information on this patent number and check litigation/docket records. Let me check for any Federal Circuit 2026 activity and PTAB challenges specifically involving this patent. Let me verify which patents are…
View full analysis →added 9/30/2026I'll search for the specific patent number and check for any 2026 litigation activity. Let me check for any CAFC 2026 activity and PTAB challenges involving this patent. One more targeted check for 2026 appellate/docket activity and for…
View full analysis →added 9/28/2026US Patent 7,653,414 — Summary Bibliographic data (verified against Google Patents, USPTO/PTAB records via Docket Alarm, and Unified Patents portal) | Field | Value | |---|---| | Patent number | US 7,653,414 B2 (publication of application…
View full analysis →added 9/1/2026A concise summary of US patent 7685393 is provided below, followed by a plain-language overview of its independent claims and a note on litigation status. US Patent 7685393 Summary Title: Synchronous memory read data capture Assignee…
View full analysis →added 5/10/2026I'll run targeted searches for the specific number and its litigation posture before summarizing. Let me check the Federal Circuit/PTAB posture specifically and retrieve the full independent claim set. Let me pull the full claim set to…
View full analysis →added 9/29/2026I'll search for the specific patent and any 2026 litigation activity, then summarize. Let me run a couple more targeted searches on litigation/2026 activity and current status. US Patent 7,701,173 — Summary Important scoping note: I ran…
View full analysis →added 9/30/2026US patent 7706641 (US7706641B2), titled "Monitoring individual fibers of an optical cable for intrusion," was issued on April 27, 2010, from an application filed on August 2, 2006. The current assignee is Network Integrity Systems Inc. The…
View full analysis →added 5/14/2026Here's a concise summary of US Patent 7,707,214, along with a plain-language overview of its independent claims: US Patent 7,707,214 Summary Title: Hierarchical update scheme for extremum location with indirect addressing Assignee…
View full analysis →added 5/25/2026