The catalog
Patent invalidity dossiers.
7,246 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.
By industry
I'll research this patent, including any 2026 CAFC docket activity. Let me run several searches. Let me get the full claim text and check the specific CAFC docket 24-2206 status. US Patent 7,979,277 — Analyst Summary Caveat up front: I…
View full analysis →added 9/29/2026I'll verify the patent record and check for any 2026 CAFC docket activity before summarizing. Let me check specifically for 2026 litigation and PTAB/appeal activity naming this patent. USPTO / Court Records Check — US 8,035,644 What I…
View full analysis →added 9/23/2026I'll search for authoritative information on US patent 8063674, including any 2026 CAFC activity. Let me verify the current post-IPR status and check specifically for any 2026 CAFC docket activity. US Patent 8,063,674 — Analyst Summary…
View full analysis →added 9/26/2026I'll verify the current status of this patent against live sources before summarizing. Let me check for any recent (2025–2026) CAFC or USPTO activity on this patent. One more check: whether US 8,075,338 was among the patents in the 2026…
View full analysis →added 9/30/2026US Patent 8076194, titled "Method of fabricating metal oxide semiconductor transistor," was issued on December 13, 2011, from an application filed on May 18, 2010. The current assignee is Marlin Semiconductor Ltd, though it was originally…
View full analysis →added 5/12/2026I'll search for current information on this patent, including any CAFC 2026 activity. Let me run more targeted searches on litigation and docket history for this specific patent number. Let me do one final check for any Federal Circuit…
View full analysis →added 9/25/2026US Patent 8124988 — Summary Bibliographic data - Patent number: US8124988B2 (application no. US12/153,910) - Title: Light emitting diode lamp package structure and assembly thereof - Inventor: Jacky Peng - Assignee (original/current)…
View full analysis →added 9/8/2026I'll research this patent across USPTO records, litigation dockets, and CAFC filings. Let me dig into the CAFC docket history and the PTAB outcomes for this specific patent. Let me verify the CAFC appeal dockets and retrieve the actual…
View full analysis →added 9/27/2026I'll search for current information on this patent and check for any 2026 litigation activity. Let me check for CAFC 2026 docket activity and the reissue status. Let me verify whether there's any 2026 Federal Circuit activity specifically…
View full analysis →added 9/25/2026US Patent 8,185,402 B2 — Summary Bibliographic Data | Field | Value | |---|---| | Patent number | US 8,185,402 B2 (US8185402B2) | | Title | Robust voice browser system and voice activated device controller | | Inventors | Alexander…
View full analysis →added 8/24/2026I'll verify the patent details against live sources and check for any 2026 docket activity. Let me verify whether US 8,192,237 itself was among the patents in the 2026 Federal Circuit appeal, and check its reexamination history. US…
View full analysis →added 9/30/2026I'll search for authoritative information on this specific patent number. Let me get the complete claim set and check appellate docket activity. Summary of US Patent No. 8,193,219 Important scope note: I interpreted the identifier…
View full analysis →added 10/1/2026I'll search for authoritative information on this specific patent number. Let me dig deeper into the litigation and CAFC history. Let me verify recent 2026 activity and the status of any new proceedings. US Patent 8,370,393 — Summary Note…
View full analysis →added 9/29/2026I'll search for authoritative information on US 8,393,029, including any 2026 CAFC activity. Let me verify whether any 2026 Federal Circuit (CAFC) appeal involving this patent exists. US 8,393,029 — Summary Identifier note: The number in…
View full analysis →added 10/1/2026I'll search for docket and litigation information on this specific patent number, then summarize. Let me run one more targeted search for any 2026 appellate docket naming this patent. US Patent 8,393,031 B2 — Analyst Summary Important…
View full analysis →added 10/1/2026I'll search for authoritative information on US patent 8442501, including any 2026 CAFC activity. Those results are unrelated (customs/tariff codes). Let me refine. Good — I have the patent record. Now let me check for Federal Circuit and…
View full analysis →added 9/25/2026US Patent 8472936: Dynamically Configurable IP Based Wireless Devices and Wireless Networks Summary: US Patent 8472936, titled "Dynamically configurable IP based wireless devices and wireless networks," was filed on September 13, 2012, and…
View full analysis →added 6/15/2026I'll verify the patent details and check for any 2026 CAFC activity. Let me check the specific IPR for this patent and any 2026 appellate activity tied to 8,472,937 itself. Let me confirm whether the IPR for this specific patent was…
View full analysis →added 9/25/2026Patent Overview — US 8,480,431 B2 Title: "Continuity maintaining biasing member" Patent number / application: US 8,480,431 B2; application US 13/726,339; pre-grant publication US 2013/0115795 A1. Assignee: PPC Broadband, Inc. (original and…
View full analysis →added 9/30/2026I'll search for the specific patent number and any related litigation or CAFC docket activity. Let me search specifically for CAFC docket activity and the litigation history. Let me verify the PPC v. Amphenol IPR patents and check for any…
View full analysis →added 9/30/2026