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
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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.
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- US113094440 cases6/8 sections
I'll search for authoritative information on this specific patent number. Now let me search for litigation/docket activity and the actual claims. Let me try to retrieve the actual claim text for this patent. Search summary — US Patent No…
View full analysis →added 9/24/2026 - US113136930 cases6/8 sections
I'll search for authoritative information on this patent number. Let me check for any litigation or CAFC docket activity involving this specific patent number. US Patent 11,313,693 B2 — Verification Summary Search scope and grounding. I…
View full analysis →added 9/24/2026 - US113172790 cases6/8 sections
I'll search for authoritative information on this specific patent, including any litigation activity. The initial searches returned irrelevant results. Let me try more targeted queries. Let me search for litigation activity involving this…
View full analysis →added 9/29/2026 - US113202540 cases6/8 sections
I'll search for this specific patent number and any related litigation. Let me search more specifically for litigation and CAFC dockets. Summary of US 11,320,254 B2 Important sourcing note: The authoritative full text of this patent…
View full analysis →added 9/24/2026 - US113202550 cases6/8 sections
I'll search for this specific patent number across patent databases and any 2026 litigation dockets. Initial searches returned unrelated results. Let me try more targeted queries. Let me check for any 2026 litigation or CAFC appeals…
View full analysis →added 9/24/2026 - US113202560 cases6/8 sections
I'll search for authoritative records on this patent, including any 2026 CAFC activity. The first searches returned unrelated documents. Let me query more specifically. Good progress. Let me check for the actual claim text and any…
View full analysis →added 9/24/2026 - US113202570 cases6/8 sections
I'll search for authoritative information on this specific patent number. Method note (important) I could not query USPTO Patent Center/Assignment or the CAFC docket directly with the tools available. What follows comes from (a) the…
View full analysis →added 9/24/2026 - US113222400 cases6/8 sections
US Patent 11322240, titled "Method and device for providing a person with training data of an athlete as the athlete is performing a running workout," was issued to Finish Time Holdings LLC on May 3, 2022. The sole inventor listed is Todd…
View full analysis →added 8/18/2026 - US113269380 cases6/8 sections
I'll verify against live sources for litigation and docket activity, then summarize. US Patent 11,326,938 B2 — Analyst Summary Verification note: I searched for litigation, PTAB, and Federal Circuit activity tied to this specific number. I…
View full analysis →added 9/24/2026 - US113269400 cases6/8 sections
I'll run several targeted searches for this patent number, including litigation/docket coverage. US 11,326,940 B2 — Summary Identifier interpreted literally: "11326940" → US Patent 11,326,940 B2 (application 17/032,441). I did not…
View full analysis →added 9/24/2026 - US113269420 cases6/8 sections
I'll search for this specific patent and any related litigation activity. Let me search for the remaining claims and any litigation involving this patent. Let me check for any PTAB proceedings or litigation specifically naming this patent…
View full analysis →added 9/24/2026 - US113321780 cases6/8 sections
I'll search for authoritative information on US 11,332,178, including any litigation or docket activity. US Patent 11,332,178 — Analyst Summary 1. Bibliographic data (authoritative from patent text) | Field | Value | |---|---| | Patent…
View full analysis →added 9/11/2026 - US113335880 cases6/8 sections
I'll run several targeted searches — one for the patent itself, one aimed at USPTO records, and one at CAFC dockets. Let me verify the granted claim set and check for any CAFC/appeal activity specifically. Summary of US Patent 11,333,588…
View full analysis →added 9/24/2026 - US113381890 cases6/8 sections
US Patent 11,338,189: Method of and system for conducting multiple contests of skill with a single performance Title: Method of and system for conducting multiple contests of skill with a single performance Assignee: Winview IP Holdings…
View full analysis →added 5/12/2026 - US113401520 cases6/8 sections
I'll search for authoritative information on US patent 11340152. Let me check for litigation/CAFC activity and verify the claim structure. Let me try to retrieve the full claim set, including any system/method claims. US Patent 11,340,152…
View full analysis →added 9/24/2026 - US113401580 cases6/8 sections
I'll search for this specific patent number and check for any CAFC 2026 litigation activity. Let me check for any litigation or administrative proceedings involving this specific patent. US 11,340,158 B2 — Summary Note on data sources: The…
View full analysis →added 9/24/2026 - US113401590 cases6/8 sections
I'll search for authoritative information on US patent 11,340,159. Let me run several targeted searches. Let me dig for the actual claim text and any litigation/docket activity. US Patent 11,340,159 — Analyst Summary Caveat up front: I was…
View full analysis →added 9/24/2026 - US113401610 cases6/8 sections
I'll search for this specific patent number and check for any CAFC litigation. Let me search more specifically for litigation and USPTO records for this patent. Let me do a targeted check for any litigation or Federal Circuit activity…
View full analysis →added 9/24/2026 - US113401650 cases6/8 sections
I'll search for this specific patent number, including any litigation activity. Let me search specifically for any litigation or CAFC docket activity involving this patent. Let me do a final targeted check for any recent 2026 court or PTAB…
View full analysis →added 9/24/2026 - US113429980 cases6/8 sections
US Patent 11,342,998 — Verification Summary I confirmed the specific patent US 11,342,998 B2 (application US 17/481,904) via Google Patents and secondary litigation sources. No similar-number patents were substituted. Bibliographic data |…
View full analysis →added 9/1/2026