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.

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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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  • US2290796
    0 cases6/8 sections

    I'll run targeted searches for this specific number, per your instruction not to conflate it with similar numbers. Let me check for any litigation or appellate docket activity, and verify the assignee/inventor record. Scope/compliance note…

    View full analysis →added 9/26/2026
  • US230090
    0 cases6/8 sections

    I'll run a few targeted searches for this identifier before summarizing. Let me check for litigation/docket records and the official USPTO record. Search status (important caveat first) I ran targeted searches for the exact identifier…

    View full analysis →added 9/29/2026
  • US230167
    0 cases6/8 sections

    I'll run targeted searches for this exact number. Let me check for any litigation/docket references and confirm the inventor/assignee record. Search results summary — US Patent 230,167 Searches run: (1) US230167 patent; (2) US230167A…

    View full analysis →added 9/24/2026
  • US2309075
    0 cases6/8 sections

    I'll search for authoritative information on this patent number, including any CAFC 2026 docket activity. US Patent 2,309,075 — Analyst Summary ⚠️ Two important threshold findings 1. No CAFC 2026 docket activity exists for this patent. I…

    View full analysis →added 9/26/2026
  • US2312078
    0 cases6/8 sections

    I'll search for this specific patent number across the sources you named. US Patent 2,312,078 — Verification Summary Search scope note: I searched for the exact number 2312078 / 2,312,078 in connection with "USPTO" and "CAFC." I did not…

    View full analysis →added 9/26/2026
  • US2324796
    0 cases6/8 sections

    I'll search for the specific patent number 2324796 in the USPTO database and CAFC dockets. The initial searches confirm the US patent identity and rule out confusion with EP2324796A1 (an unrelated dental device). Let me verify against…

    View full analysis →added 8/27/2026
  • US232765
    0 cases6/8 sections

    I'll search for this specific patent number as requested. Let me check the litigation/docket angles and the USPTO record specifically. Let me do one more targeted check for any litigation or modern docket reference to this specific number…

    View full analysis →added 9/26/2026
  • US2329020
    0 cases6/8 sections

    I'll research this patent number against live sources before summarizing. Let me check for any litigation or CAFC 2026 docket activity involving this patent number. US 2,329,020 — Summary and Claim Overview Important preliminary caveats 1…

    View full analysis →added 9/26/2026
  • US2333556
    0 cases6/8 sections

    I'll search for authoritative information on this patent number, including any litigation or CAFC docket activity. US Patent 2,333,556 — Verification & Summary Search scope caveat up front: I searched for the exact number 2333556 /…

    View full analysis →added 9/26/2026
  • US2365117
    0 cases6/8 sections

    I'll verify against live sources before summarizing. Verification note I searched for US 2365117 and for any 2026 CAFC/USPTO litigation activity. Findings: - The patent is confirmed at https://patents.google.com/patent/US2365117/en (family…

    View full analysis →added 9/24/2026
  • US236526
    0 cases6/8 sections

    I'll search for this specific patent identifier across the requested sources. Let me run more targeted searches for the specific number and the requested docket sources. Scope and search results Searches run (all negative for this…

    View full analysis →added 9/26/2026
  • US2374165
    0 cases6/8 sections

    I'll verify the record with targeted searches before summarizing. US 2,374,165 — Verification and Summary Search/verification result (important caveat first) I ran searches against the numeric string 2374165. Every hit was a different…

    View full analysis →added 9/27/2026
  • US2401368
    0 cases6/8 sections

    I'll run several targeted searches, then reconcile them against the authoritative full text already provided. Summary — US Patent 2,401,368 Sourcing note: My live searches of USPTO/Court resources and the open web returned no independent…

    View full analysis →added 9/30/2026
  • US2457829
    0 cases6/8 sections

    I'll verify against live sources before summarizing. Let me check for any post-issuance records (assignment, reissue, litigation) tied to this number. US Patent 2,457,829 — Summary Bottom line: I found authoritative full text for this…

    View full analysis →added 9/24/2026
  • US2480178
    0 cases6/8 sections

    I'll run the requested searches for patent number 2480178 as-is, covering both the USPTO record and any CAFC 2026 docket activity. Search note (performed as instructed) I searched USPTO-facing and CAFC-facing sources using the literal…

    View full analysis →added 9/26/2026
  • US2481633
    0 cases6/8 sections

    I'll run targeted searches for this exact patent number and any 2026 CAFC activity, then reconcile with the authoritative full text you provided. Search results for the exact identifier 2481633 Bottom line up front: there is no CAFC 2026…

    View full analysis →added 9/23/2026
  • US2486683
    0 cases6/8 sections

    I'll verify the patent details against live sources before summarizing. US 2,486,683 — Verification & Summary Search note / scope: I searched for the exact identifier 2486683 / US2486683A. Results returned only the correct patent; no…

    View full analysis →added 9/25/2026
  • US2492022
    0 cases6/8 sections

    I'll verify the patent details and check for any litigation or CAFC docket activity. Let me run a couple more targeted checks on litigation/dockets and the patent record. US Patent 2,492,022 — Verification Summary Search results note…

    View full analysis →added 9/30/2026
  • US2505101
    0 cases6/8 sections

    I'll search for this specific patent number. Now let me check for any litigation or CAFC docket activity. US Patent 2,505,101 — Summary Bottom line: This is a 1950 patent on a rubber/elastomer slip-on protective cover for a gasoline-pump…

    View full analysis →added 9/24/2026
  • US2591751
    0 cases6/8 sections

    I'll search for authoritative information on this patent, including any recent litigation activity. Let me check for any litigation or 2026 CAFC docket activity involving this patent number. US Patent 2,591,751 — Summary Source note: The…

    View full analysis →added 9/26/2026