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 patent
Drop a US patent number — we’ll verify it on Google Patents and generate the full invalidity dossier.
By industry
- US112313640 cases6/8 sections
I'll search for this specific patent number across USPTO and CAFC docket sources. Let me run two more targeted searches to confirm the litigation/docket status. US 11,231,364 B2 — "Optical Turbulence Measurement" Important scope note on…
View full analysis →added 9/24/2026 - US112337770 cases6/8 sections
I'll search for this specific patent number and any litigation activity. Let me get the actual claim text and check for litigation specifically naming this patent. US Patent 11,233,777 — Analyst Summary Important caveat up front: I was…
View full analysis →added 9/24/2026 - US112369710 cases6/8 sections
I'll search for the specific patent number and any associated litigation. Let me look for the remaining independent claim text and any litigation or CAFC activity. Let me get the full text of independent claim 14 and dependent claims…
View full analysis →added 9/24/2026 - US112369730 cases6/8 sections
I'll search for authoritative information on this patent, including any litigation involving it. Let me check for any litigation or docket references specifically tied to this patent number. US Patent 11,236,973 — "Secure device for…
View full analysis →added 9/24/2026 - US112369740 cases6/8 sections
I'll search for this specific patent number as requested. Let me check for CAFC 2026 dockets and litigation involving this patent. Let me check specifically for any PTAB/IPR or district court litigation involving Fabriser. Summary — US…
View full analysis →added 9/24/2026 - US112430360 cases6/8 sections
I'll search for authoritative information on this patent number, then cross-check against the full patent text provided. Let me check for any litigation or CAFC docket activity, and verify against the USPTO record. Search Results Summary —…
View full analysis →added 9/24/2026 - US112447510 cases6/8 sections
Here's a concise summary of US patent 11244751: Title: Method and device for providing a person with training data of an athlete as the athlete is performing a swimming workout Assignee: Finish Time Holdings LLC Inventors: Todd Martin…
View full analysis →added 8/18/2026 - US112555370 cases6/8 sections
I'll run a couple of targeted searches, then summarize against the authoritative patent text provided. One more targeted search to confirm litigation status. Summary of US 11255537 B2 — "Metallic Burner Tiles" Note on identifiers: I've…
View full analysis →added 9/24/2026 - US112555380 cases6/8 sections
I'll search for authoritative information on this patent number, including any 2026 CAFC docket activity. Initial searches returned mostly irrelevant results. Let me run more targeted queries. Let me do a final targeted check for any…
View full analysis →added 9/24/2026 - US112555390 cases6/8 sections
I'll search for live records on this patent before summarizing. Let me check for any USPTO assignment records or litigation activity. Search disposition I ran the requested checks. Results: - USPTO-record search on US 11,255,539 B2 —…
View full analysis →added 9/24/2026 - US112601510 cases6/8 sections
I'll research this patent across the sources you've named, then reconcile against the authoritative full text I have. Let me dig into the specific litigation history, claim text, and any 2026 appellate activity. US 11,260,151 B2 —…
View full analysis →added 9/28/2026 - US112739440 cases6/8 sections
This analysis summarizes US patent 11273944, "Adaptive container loading assembly," based on the provided patent text and current search capabilities. As of April 26, 2026, no specific cases related to patent 11273944 were found in the…
View full analysis →added 6/19/2026 - US112748830 cases6/8 sections
I'll search for authoritative records on this patent number and any 2026 CAFC docket activity. Let me run more targeted searches for litigation and Federal Circuit activity. Summary — U.S. Patent No. 11,274,883 B2 Verification note: I…
View full analysis →added 9/24/2026 - US112748850 cases6/8 sections
I'll search for authoritative information on this patent number, including any litigation or CAFC activity. Let me run a couple more targeted checks for any litigation or CAFC docket activity. US 11,274,885 B2 — Analyst Summary Sources…
View full analysis →added 9/24/2026 - US112805900 cases6/8 sections
I'll run targeted searches for this specific patent number and any related litigation. Let me run two more targeted checks for litigation/docket activity. US 11,280,590 B1 — Analyst Summary Sourcing note: I located no CAFC 2026 docket or…
View full analysis →added 9/24/2026 - US112872380 cases6/8 sections
I'll search for this specific patent number to check for USPTO records and any CAFC/docket activity. Search Results — USPTO / CAFC Dockets No CAFC 2026 docket activity found for US 11,287,238. My searches returned no litigation, appeal…
View full analysis →added 9/24/2026 - US112905270 cases6/8 sections
I'll search for authoritative information on this specific patent number. Let me run targeted checks for any litigation or appellate activity involving this patent. US 11,290,527 B2 — Automatic Tagging of Cloud Resources for Implementing…
View full analysis →added 9/15/2026 - US112937770 cases6/8 sections
I'll search for the specific patent number as instructed, then summarize. Let me run a few more targeted searches for litigation/CAFC activity and the USPTO record. Search results I ran targeted queries against USPTO/PTAB-style sources…
View full analysis →added 9/24/2026 - US113004050 cases6/8 sections
I'll search for authoritative information on this patent number and any related 2026 litigation. Let me check for litigation and PTAB activity specifically. Let me retrieve the exact claim text to accurately summarize the independent…
View full analysis →added 9/24/2026 - US113069940 cases6/8 sections
I'll search for authoritative information on this patent number and any related litigation. Let me verify the claim set and check for any litigation specifically involving this patent number. US 11,306,994 B2 — Patent Analysis…
View full analysis →added 9/24/2026