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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  • US6175922
    0 cases6/8 sections

    I'll search for the specific patent number and any CAFC litigation involving it. Let me dig further into litigation/CAFC dockets and the specific claim text. US Patent 6,175,922 — Summary Sourcing note: I retrieved this via live web search…

    View full analysis →added 9/26/2026
  • US6178160
    0 cases6/8 sections

    I'll search for authoritative information on this patent number, including any litigation or CAFC activity. Let me run a couple more targeted searches on the patent and any associated litigation. Search results summary I searched for the…

    View full analysis →added 9/21/2026
  • US6182136
    0 cases6/8 sections

    I'll verify current status via search, then summarize from the authoritative text provided. US 6,182,136 B1 — Automated Service Elements Discovery Using Core Service Specific Discovery Templates 1. Search scope and confidence note I…

    View full analysis →added 9/23/2026
  • US6182141
    0 cases6/8 sections

    I'll search for this specific patent number across USPTO and litigation sources. Let me check for any 2026 CAFC litigation or PTAB proceedings involving this specific number. US Patent 6,182,141 — Analyst Summary Search scope and caveats I…

    View full analysis →added 9/24/2026
  • US6184652
    0 cases6/8 sections

    I'll run targeted searches to verify the patent's bibliographic data and check for any 2026 CAFC litigation activity. US Patent 6,184,652 — Analyst Summary 1. Search scope and negative findings (read first) I searched web-indexed…

    View full analysis →added 9/24/2026
  • US6184896
    0 cases6/8 sections

    I'll search for this specific patent number across USPTO and CAFC/litigation sources. Summary — US Patent 6,184,896 B1 Confidence note: The bibliographic data below comes primarily from the authoritative patent document (Google Patents…

    View full analysis →added 9/24/2026
  • US6185535
    0 cases6/8 sections

    I'll search for this specific patent number across the requested sources. US Patent 6,185,535 — Analyst Summary Search scope note: I ran targeted web searches against Google Patents, USPTO-derived data (uspto.report, PTAB/PTActs), and…

    View full analysis →added 9/25/2026
  • US6194191
    0 cases6/8 sections

    I'll research this patent across USPTO sources and litigation dockets. Let me check for litigation and any CAFC/Federal Circuit proceedings involving this specific patent. Let me verify the claim text and check for PTAB/IPR and any…

    View full analysis →added 9/24/2026
  • US6195024
    0 cases6/8 sections

    I'll search for authoritative information on this patent number. Let me check specifically for 2026 Federal Circuit activity involving this patent. Search report — US Patent No. 6,195,024 (literal ID: "6195024") Scope of search. I searched…

    View full analysis →added 9/26/2026
  • US6195564
    0 cases6/8 sections

    I'll search for authoritative information on this patent, including any CAFC 2026 docket activity. Let me search more specifically for CAFC 2026 activity and litigation history. US Patent 6,195,564 — Analyst Summary Search caveat up front…

    View full analysis →added 9/30/2026
  • US6199001
    0 cases6/8 sections

    I'll search for information on this patent number across the specified sources. Let me run a couple more targeted searches to confirm litigation status and claim details. US Patent 6,199,001 B1 — Analyst Summary Confidence note: The…

    View full analysis →added 9/26/2026
  • US6199113
    0 cases6/8 sections

    I'll search for authoritative information on this patent, including litigation dockets. Let me dig into the PTAB/USPTO references and check for CAFC activity specifically. US Patent 6,199,113 — Summary Sourcing note: I relied primarily on…

    View full analysis →added 9/24/2026
  • US6199733
    0 cases6/8 sections

    I'll search for this patent's litigation and docket footprint, then summarize. Let me check for any litigation, PTAB, or assignment records. Search results — litigation / docket check first I searched for litigation, PTAB, and CAFC 2026…

    View full analysis →added 9/24/2026
  • US6201318
    0 cases6/8 sections

    I'll search for the specific patent number 6201318 across USPTO and CAFC sources. I have strong USPTO-sourced data. Let me run one more targeted check for any CAFC/Federal Circuit 2026 litigation activity before summarizing. Summary — U.S…

    View full analysis →added 9/24/2026
  • US6216129
    0 cases6/8 sections

    I'll verify the current status and check for any litigation/docket activity, then summarize. Let me check specifically for litigation/docket history and current ownership. Summary: US Patent 6,216,129 B1 Sourcing note / uncertainty flag: I…

    View full analysis →added 9/24/2026
  • US6218872
    0 cases6/8 sections

    US Patent 6218872, titled "Line driver with output impedance synthesis," was invented by Victor Koren. The patent was filed on December 23, 1999, and issued on April 17, 2001. As of May 12, 2025, the patent was assigned to QUICKER…

    View full analysis →added 7/29/2026
  • US6223289
    0 cases6/8 sections

    I'll run several targeted searches to check for current USPTO status and any CAFC/litigation activity, then summarize. Let me check for litigation/docket history and pull the claim text. Let me try to retrieve the actual claim set for…

    View full analysis →added 9/29/2026
  • US6226372
    0 cases6/8 sections

    I'll search for the patent and any related litigation/docket activity. Let me pull the full claim set and check for any 2026 CAFC activity specifically naming this patent. I have solid identifications. Let me try to retrieve the complete…

    View full analysis →added 9/24/2026
  • US6226751
    0 cases6/8 sections

    I'll research US patent 6226751 across USPTO sources and check for any CAFC/litigation activity. Let me check specifically for any CAFC/Federal Circuit or district court litigation involving this patent. Let me run a couple more targeted…

    View full analysis →added 9/26/2026
  • US6229542
    0 cases6/8 sections

    I'll search for this patent across USPTO and CAFC sources. Let me search for litigation and CAFC docket information specifically. Let me do a final targeted check for court dockets and enforcement history. US Patent 6,229,542 — Summary…

    View full analysis →added 9/24/2026