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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- US71713780 cases6/8 sections
I'll search for authoritative information on US 7,171,378 and any related CAFC 2026 docket activity. Let me check specifically for litigation and the claim structure. Let me confirm the independent claim set and check for any 2026…
View full analysis →added 9/24/2026 - US71739120 cases6/8 sections
I'll search for current information on this patent number before summarizing. Search results / docket check — up front I ran targeted searches for the literal string "7173912" and for "7173912" combined with CAFC/2026 docket terms…
View full analysis →added 9/27/2026 - US71779450 cases6/8 sections
I'll run targeted searches for this patent number, including CAFC 2026 docket activity. Let me run more specific searches on the claims and any litigation history. Let me attempt one more search specifically for the claim text and any 2026…
View full analysis →added 9/26/2026 - US71812290 cases6/8 sections
I'll search for this specific patent number across the sources you mentioned. Let me check for any litigation/docket activity and confirm the USPTO record. US Patent 7,181,229 — Verified Record Summary Bottom line on your two requested…
View full analysis →added 9/24/2026 - US71850730 cases6/8 sections
I'll search for this specific patent number in USPTO and CAFC sources. Let me search for the specific claims and any litigation involving this patent. Let me get the actual claim text for this patent. Search Results for US Patent No…
View full analysis →added 9/24/2026 - US71853580 cases6/8 sections
I'll search for authoritative information on US 7,185,358. Now let me check for litigation / CAFC docket activity and the USPTO assignment record. Let me check for any IPR/PTAB and Federal Circuit activity specifically involving 7,185,358…
View full analysis →added 9/24/2026 - US71853680 cases6/8 sections
I'll verify the patent details and check for any 2026 litigation activity. Let me pull the actual claim text to summarize the independent claims accurately. Let me try to confirm the exact wording of the earlier independent claims. US…
View full analysis →added 9/24/2026 - US71883170 cases6/8 sections
I'll verify the patent's current status and check for any litigation activity before summarizing. US Patent 7,188,317 B1 — Verification Report Search note on the strict-ID rule: I searched for the literal string "7188317." Two near-miss…
View full analysis →added 9/20/2026 - US71898000 cases6/8 sections
I'll search for authoritative information on US 7,189,800, including any 2026 CAFC docket activity. Let me search for the abstract, assignee details, and any litigation activity. Let me pull the issued claims and check for any 2026…
View full analysis →added 10/1/2026 - US71922440 cases6/8 sections
I'll verify the patent details against live sources before summarizing. US 7,192,244 B2 — Verified Summary I searched for this specific number; all results below map to US 7,192,244 B2 only. No other patent number was substituted…
View full analysis →added 9/30/2026 - US71942440 cases6/8 sections
I'll search for this specific patent number across USPTO and CAFC sources. Let me search specifically for litigation/PTAB/CAFC activity involving this patent number. Let me run two more targeted searches to check for any Federal Circuit or…
View full analysis →added 9/30/2026 - US71943630 cases6/8 sections
I'll search for authoritative information on this patent, including any litigation dockets. Now let me check for any litigation or CAFC activity involving this patent. US 7,194,363 B2 — Verification Summary I searched for this patent…
View full analysis →added 9/24/2026 - US71955540 cases6/8 sections
I'll search for the specific patent number and any associated litigation. US 7,195,554 — Summary Important framing note: I found no USPTO litigation records and no CAFC 2026 docket referencing patent 7,195,554. My searches for "7195554…
View full analysis →added 10/1/2026 - US72029610 cases6/8 sections
I'll search for authoritative information on this patent number. Let me search for litigation and any CAFC/PTAB activity involving this specific patent. Let me check for any court docket appearances and the certificate of correction for…
View full analysis →added 9/24/2026 - US72038440 cases6/8 sections
Here's a concise summary of US Patent 7203844: US Patent 7203844: Method and system for a recursive security protocol for digital copyright control Title: Method and system for a recursive security protocol for digital copyright control…
View full analysis →added 5/10/2026 - US72115790 cases6/8 sections
I'll search for authoritative information on this patent number, including any CAFC 2026 docket activity. Let me run additional targeted searches for any litigation or CAFC activity, and confirm the docket databases. Let me check for any…
View full analysis →added 9/26/2026 - US72125340 cases6/8 sections
I'll search for the authoritative record on this patent number and check for any 2026 CAFC activity. Now let me check for any CAFC 2026 docket activity and confirm the full claim set. Let me confirm the remaining independent claims and…
View full analysis →added 9/30/2026 - US72252670 cases6/8 sections
I'll search for authoritative records on this patent, including any 2026 CAFC activity. Let me run a couple more targeted searches for litigation/PTAB activity and USPTO status. Search scope and caveats I searched for the specific number…
View full analysis →added 9/26/2026 - US72257870 cases6/8 sections
I'll search for the specific patent number and any CAFC 2026 docket activity. Let me run a couple of targeted follow-up searches to confirm docket status. Let me check whether the full claim set (claims 3–9) and any '787-specific docket…
View full analysis →added 9/24/2026 - US72259090 cases6/8 sections
I'll search for the specific patent number and any related litigation/docket activity. Let me check for any litigation or CAFC docket records specifically tied to this patent number. US Patent 7,225,909 — Summary Important scope note up…
View full analysis →added 9/24/2026