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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  • US5936380
    0 cases6/8 sections

    US Patent 5,936,380 — Verified Summary Scope note on the searches I ran. I searched for the exact identifier 5936380 in connection with USPTO/CAFC material. The CAFC-side query returned no results tied to this patent — the hits were…

    View full analysis →added 9/24/2026
  • US5937112
    0 cases6/8 sections

    I'll search for authoritative information on US 5,937,112. Let me search more specifically for the USPTO record and any 2026 litigation. Let me check specifically for any USPTO/CAFC records or litigation involving this patent. US Patent…

    View full analysis →added 9/24/2026
  • US5938732
    0 cases6/8 sections

    I'll search for the patent and any litigation/docket activity, then summarize. Let me check for litigation, PTAB, or CAFC activity specifically involving this patent. US Patent 5,938,732 — Summary Important framing / scope of what I could…

    View full analysis →added 9/26/2026
  • US5939986
    0 cases6/8 sections

    I'll verify the patent against external sources, then summarize. Let me run two more targeted checks — one for USPTO/assignment/status data and one for any litigation or Federal Circuit activity. Verification / search scope I ran targeted…

    View full analysis →added 9/24/2026
  • US5940843
    0 cases6/8 sections

    I'll search for the specific patent number in USPTO and CAFC dockets, then cross-reference with the authoritative patent text provided. Let me check specifically for CAFC activity and get the claim text. Let me attempt to retrieve the…

    View full analysis →added 9/25/2026
  • US5941944
    0 cases6/8 sections

    I'll search for authoritative information on this patent number, including any 2026 litigation activity. Let me check for any litigation or docket references tied specifically to this patent number. Summary of US Patent 5,941,944 Note on…

    View full analysis →added 9/24/2026
  • US5941988
    0 cases6/8 sections

    I'll search for this specific patent number, including any litigation/litigation-docket activity. Let me run more targeted searches on the USPTO record and any litigation mentions. Summary — US Patent 5,941,988 Important search limitation…

    View full analysis →added 9/27/2026
  • US5944680
    0 cases6/8 sections

    I'll verify the patent details and check for any 2026 CAFC activity before summarizing. Let me try to pull the actual claim language to ground the independent-claim summary. Scope of search and caveats Limitation up front: I do not have…

    View full analysis →added 9/26/2026
  • US5944823
    0 cases6/8 sections

    I'll search for authoritative information on this patent number, including any litigation activity. Let me do a couple more targeted checks on litigation/docket activity and the current assignee. Summary of US Patent 5,944,823 Verification…

    View full analysis →added 9/24/2026
  • US5946110
    0 cases6/8 sections

    I'll verify this patent's identity and check for any litigation or docket activity before summarizing. Let me run one more targeted check for docket/litigation records on this specific number. US Patent 5,946,110 — "Apparatus for Multiple…

    View full analysis →added 9/24/2026
  • US5946458
    0 cases6/8 sections

    I'll search for this specific patent number as requested. Now let me check for any CAFC 2026 docket activity involving this patent. Search results for US 5946458 Important caveat up front: I found no Federal Circuit (CAFC) 2026 docket…

    View full analysis →added 9/24/2026
  • US5949978
    0 cases6/8 sections

    I'll search for authoritative information on this patent, including any litigation or CAFC dockets. Let me check for litigation history and CAFC records specifically. Search Results Summary Important caveat on method: I do not have direct…

    View full analysis →added 9/24/2026
  • US5953546
    0 cases6/8 sections

    I'll search for authoritative information on US 5953546, including any CAFC/litigation activity. Let me look for the actual claim text and any litigation/docket records. US 5,953,546 — "Camera" Bottom line: I confirmed the patent's…

    View full analysis →added 9/24/2026
  • US5956736
    0 cases6/8 sections

    I'll search for authoritative information on this patent number, including any 2026 CAFC/litigation activity. Let me check specifically for any litigation, PTAB, or CAFC docket activity and confirm the family/expiration. US Patent…

    View full analysis →added 9/24/2026
  • US5960162
    0 cases6/8 sections

    I'll search for the specific patent number 5960162 as requested. Now let me check for any CAFC litigation or docket activity involving this patent. US Patent 5,960,162 — Verification and Summary I ran searches against Google Patents…

    View full analysis →added 9/24/2026
  • US5964223
    0 cases6/8 sections

    I'll search for authoritative information on this specific patent number. The provided text is truncated before the claims. Let me pull the actual claim language and check for any 2026 CAFC activity. Search scope and confidence note I ran…

    View full analysis →added 9/30/2026
  • US5968176
    0 cases6/8 sections

    I'll search for authoritative information on this patent, including any 2026 CAFC docket activity. Let me dig deeper for the patent's claims text and any litigation/CAFC activity. Let me try to retrieve the actual claim text and check for…

    View full analysis →added 9/24/2026
  • US5970473
    0 cases6/8 sections

    I'll verify this patent against authoritative sources, including checking for any CAFC litigation activity. Let me do one more targeted check on the patent's legal status and any litigation history. US Patent 5,970,473 — Verification…

    View full analysis →added 9/24/2026
  • US5972619
    0 cases6/8 sections

    I'll search for authoritative information on this specific patent number, including any 2026 CAFC docket activity. The 2026 CAFC query returned no relevant hits (only unrelated Australian patent journal content). Let me dig for the actual…

    View full analysis →added 9/30/2026
  • US5974164
    0 cases6/8 sections

    I'll search for the specific patent number and any related litigation dockets. Let me dig for the claim text and any litigation specifically involving this patent. Let me look for the claim language and any specific litigation/docket…

    View full analysis →added 9/30/2026