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 patent
Drop a US patent number — we’ll verify it on Google Patents and generate the full invalidity dossier.
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- US113915950 cases6/8 sections
I'll search for the specific patent and any related docket activity. Let me check for any litigation or PTAB/CAFC activity specific to this patent. Let me try to retrieve the actual claim set for this patent. Search scope and…
View full analysis →added 9/24/2026 - US113915960 cases6/8 sections
I'll search for authoritative information on this specific patent number, including any litigation or CAFC docket activity. Let me run a couple more targeted searches to confirm there's no litigation or CAFC activity for this specific…
View full analysis →added 9/24/2026 - US113970870 cases6/8 sections
I'll search for authoritative information on this patent number, then summarize. Let me pull the claim set and any litigation/docket information. Search results — US 11,397,087 I ran targeted searches against Google Patents, the USPTO…
View full analysis →added 9/24/2026 - US113978000 cases6/8 sections
I'll run targeted searches for this specific patent number and any associated litigation, then summarize. One more targeted check for any 2026 Federal Circuit activity involving this patent or its owner. Summary — US Patent No. 11,397,800…
View full analysis →added 9/26/2026 - US114022970 cases6/8 sections
I'll search for authoritative information on this patent, including any 2026 CAFC docket activity. Let me run additional targeted searches on the USPTO record, litigation, and any 2026 Federal Circuit activity. US 11,402,297 B2 — Summary…
View full analysis →added 9/24/2026 - US114022990 cases6/8 sections
I'll run targeted searches for this patent number, including litigation/docket checks. Let me check for litigation/docket activity and confirm the claim set and legal status. Let me confirm the granted claim set and check for any EP…
View full analysis →added 9/24/2026 - US114023000 cases6/8 sections
I'll search for litigation and docket information specific to US 11,402,300 while grounding the summary in the authoritative patent text provided. Let me run additional targeted searches to confirm whether any litigation or PTAB/CAFC…
View full analysis →added 9/24/2026 - US114023030 cases6/8 sections
I'll search for authoritative information on this specific patent number. Let me run a few more targeted searches to check for litigation/docket activity and USPTO records. US Patent 11,402,303 — Analyst Summary Search provenance and…
View full analysis →added 9/24/2026 - US114023110 cases6/8 sections
I'll search for authoritative information on this patent number, including any 2026 CAFC docket activity. Let me check the CAFC docket and litigation databases specifically. Let me verify the full claim set and confirm whether any…
View full analysis →added 9/24/2026 - US114023130 cases6/8 sections
I'll run searches on the patent number and any 2026 litigation/docket activity, then summarize. Search scope and limits I searched for US 11,402,313 specifically (patent number, title, assignee, and litigation-specific queries pairing the…
View full analysis →added 9/24/2026 - US114023140 cases6/8 sections
I'll search for authoritative records on this specific patent number. Patent record: US 11,402,314 B2 Bottom line up front: I could locate the patent's prosecution/issuance record and family data, but I found no evidence of any CAFC 2026…
View full analysis →added 9/24/2026 - US114023230 cases6/8 sections
I'll search for authoritative information on this specific patent number, including any litigation activity. Let me check specifically for any CAFC appeals or PTAB proceedings involving this patent, and verify assignee details. Search…
View full analysis →added 9/24/2026 - US114023240 cases6/8 sections
I'll search for authoritative information on this specific patent number, including any 2026 CAFC docket activity. Let me do one more targeted check for any litigation or PTAB proceedings involving this patent number. US 11,402,324 —…
View full analysis →added 9/22/2026 - US114023260 cases6/8 sections
I'll search for authoritative information on this patent, including any litigation or CAFC docket activity. Let me check specifically for litigation and CAFC docket activity involving this patent. Let me do a final check for any…
View full analysis →added 9/24/2026 - US114023280 cases6/8 sections
I'll verify the patent's current status and check for any litigation or CAFC docket activity. US Patent 11,402,328 B2 — Summary Verification note: I searched for this specific number (US 11,402,328 / application 15/763,935). I found no…
View full analysis →added 9/24/2026 - US114023300 cases6/8 sections
I'll search for authoritative records on this specific patent number before summarizing. Now let me check for any litigation or CAFC docket activity involving this patent. Let me retrieve the actual claim set for US 11402330 to ground the…
View full analysis →added 9/24/2026 - US114023350 cases6/8 sections
I'll research this patent number across the requested sources. Let me run more targeted searches on the patent itself and any litigation/docket activity. Search Results Summary Scope note: I searched for the exact identifiers 11402335 /…
View full analysis →added 9/24/2026 - US114023430 cases6/8 sections
I'll search for authoritative information on US patent 11402343, including any litigation or CAFC 2026 activity. Let me run a few more targeted searches for litigation and USPTO records specific to this patent number. US Patent 11,402,343…
View full analysis →added 9/24/2026 - US114023500 cases6/8 sections
I'll search for authoritative information on US 11,402,350, including any CAFC/litigation activity. Let me do a couple more targeted checks for any litigation or PTAB activity specific to this patent. Analysis: US Patent No. 11,402,350 B2…
View full analysis →added 9/24/2026 - US114023530 cases6/8 sections
I'll search for the specific patent number and check for any litigation activity. Let me do more targeted searches for the specific patent and any litigation. Let me check for any litigation or PTAB/Court activity specific to this patent…
View full analysis →added 9/24/2026