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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- US70491020 cases6/8 sections
I'll search for information on this patent number, including any CAFC litigation activity. Let me try to retrieve the literal claim text, which wasn't included in the authoritative text provided. US 7,049,102 B1 — Summary Caveat on…
View full analysis →added 9/27/2026 - US70500890 cases6/8 sections
I'll search for the patent and any related litigation activity. Let me check specifically for litigation and enforcement activity involving this patent number. US Patent 7,050,089 — Summary Search results / caveats up front - I was able to…
View full analysis →added 9/24/2026 - US70509070 cases6/8 sections
I'll search for this specific patent number across the sources you named. The first searches returned unrelated results. Let me refine. Good progress. Now let me look for the full claim set and any CAFC/litigation activity. Search scope…
View full analysis →added 9/24/2026 - US70561150 cases6/8 sections
I'll search for this specific patent number and check for any CAFC 2026 docket activity. Let me search more specifically for CAFC activity and any litigation involving this patent. Let me check for any Federal Circuit 2026 appeal involving…
View full analysis →added 9/29/2026 - US70576510 cases6/8 sections
I'll search for this specific patent number. Let me check for any litigation or CAFC docket activity specifically involving this patent. Let me do a couple more targeted checks for any 2026 appellate/litigation activity. Summary: US Patent…
View full analysis →added 9/24/2026 - US70583560 cases6/8 sections
I'll verify the patent details and check for any litigation or docket activity. Let me look for the actual claim language and any CAFC activity. US Patent 7,058,356 — Analyst Summary Sourcing note: I was able to work primarily from the…
View full analysis →added 9/24/2026 - US70625700 cases6/8 sections
I'll search for authoritative records on this patent, including any 2026 litigation activity. Let me pull the claim set and confirm any litigation/appeal records. Let me retrieve the full claim set, including the earlier independent…
View full analysis →added 9/26/2026 - US70627580 cases6/8 sections
I'll search for the specific patent number and any related litigation or docket activity. Let me run a couple more targeted searches for litigation/docket records. US Patent 7,062,758 — Summary Searching note: I searched for this specific…
View full analysis →added 9/28/2026 - US70646920 cases6/8 sections
I'll search for authoritative information on US patent 7064692, including any litigation activity. Let me check for any litigation or CAFC docket activity involving this patent. Summary: US Patent 7,064,692 Verification note: My searches…
View full analysis →added 9/24/2026 - US70691880 cases6/8 sections
I'll run searches against the patent number and for litigation/docket activity. Let me probe specifically for litigation or docket references to this patent. US 7,069,188 — Summary (from the authoritative full text provided, plus live…
View full analysis →added 9/26/2026 - US70692190 cases6/8 sections
I'll search for authoritative information on US patent 7069219, including any 2026 CAFC litigation activity. Let me run more targeted searches on litigation and docket activity for this specific number. Let me run a couple more checks to…
View full analysis →added 9/24/2026 - US70800370 cases6/8 sections
I'll search for authoritative information on US 7,080,037, including any 2026 CAFC activity. Let me check for litigation and any 2026 Federal Circuit activity specifically tied to this patent. Let me try to pull the actual numbered…
View full analysis →added 9/26/2026 - US70808190 cases6/8 sections
I'll search for the patent to confirm the bibliographic record, then summarize. US Patent 7,080,819 — Analyst Summary Searches run: Google Patents / Justia / FreePatentsOnline full-text records for "US7080819B2" and the application…
View full analysis →added 9/30/2026 - US70838680 cases6/8 sections
I'll search for this specific patent number to verify against the authoritative text provided. US Patent 7,083,868 — Verification Summary Search note: I searched for the specific number 7083868 and confirmed the results. Note that the…
View full analysis →added 9/27/2026 - US70877320 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 any litigation or 2026 docket activity. Let me get the actual claim text and abstract to be precise. US…
View full analysis →added 9/27/2026 - US70882350 cases6/8 sections
I'll search for this specific patent number and any associated litigation. Let me check for any litigation or assignment records specifically tied to this patent. Search Results Summary — US Patent No. 7,088,235 CAFC / litigation search…
View full analysis →added 9/24/2026 - US70895810 cases6/8 sections
I'll search for authoritative records on US 7,089,581 and any CAFC 2026 activity. Now let me check for any CAFC 2026 docket activity and the USPTO assignment/legal status records. Let me do a final targeted check for any district…
View full analysis →added 9/20/2026 - US70903890 cases6/8 sections
I'll search for authoritative information on US 7,090,389, including any litigation. Let me check for any 2026 CAFC docket activity and the patent's litigation history specifically. One more targeted check on litigation involving this…
View full analysis →added 9/27/2026 - US70923580 cases6/8 sections
I'll search for this specific patent number to verify and check for any litigation dockets. Let me run a couple more targeted searches to confirm there's no litigation and to cross-check the bibliographic data. US Patent 7,092,358 —…
View full analysis →added 9/26/2026 - US70927270 cases6/8 sections
I'll search for authoritative information on this patent number, including any CAFC 2026 docket activity. Let me run a few more targeted searches to confirm whether there's any 2026 litigation or docket activity. Let me confirm the claim…
View full analysis →added 9/24/2026