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
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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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- US83407850 cases6/8 sections
I'll search for this specific patent number across the requested sources. Let me search more specifically for litigation/docket activity. Let me do a couple more targeted checks on ownership/assignment and any 2026 docket activity. US…
View full analysis →added 9/26/2026 - US83468010 cases6/8 sections
I'll search for this specific patent number as requested, then summarize based on the authoritative patent text provided. Summary — US Patent No. 8,346,801 B2 Important scoping note: I searched for the literal number 8346801. Results…
View full analysis →added 9/27/2026 - US83590290 cases6/8 sections
I'll verify the details with targeted searches, then summarize. Scope and verification note I searched for the specific identifier 8359029 / US 8,359,029 and did not auto-correct or substitute any similar number. Two important caveats up…
View full analysis →added 9/29/2026 - US83609370 cases6/8 sections
I'll search for authoritative information on this specific patent number, including any 2026 litigation activity. Let me run a couple of targeted confirmation searches on litigation/docket activity and current ownership. A 2026 docket…
View full analysis →added 9/17/2026 - US83662370 cases6/8 sections
I'll verify current status via search, then summarize from the authoritative patent text. US 8,366,237 B2 — Verification & Summary Search note on scope: Targeted searches for the literal identifiers "US8366237", "8,366,237" and "US…
View full analysis →added 9/30/2026 - US83691680 cases6/8 sections
I'll run targeted searches for this specific patent number and any associated litigation. The searches surfaced mostly unrelated documents. Let me refine with litigation- and docket-specific queries. Let me try a couple more targeted…
View full analysis →added 9/24/2026 - US83801830 cases6/8 sections
I'll search for authoritative information on this patent and any litigation activity. Let me verify the claim set and check for any PTAB or district court proceedings specifically naming this patent. Search Scope and Confidence Note I…
View full analysis →added 9/24/2026 - US83861440 cases6/8 sections
I'll search for the specific patent number and any related litigation. Let me search for the specific claim language and any litigation involving this patent. US Patent 8,386,144 B2 — Summary Bottom line: I can confirm the bibliographic…
View full analysis →added 9/24/2026 - US83984660 cases6/8 sections
I'll search for authoritative information on this patent number, including any litigation/docket activity. Let me dig into the litigation/PTAB angle and any 2026 appellate activity. Search results — US 8,398,466 B2 Important scoping note…
View full analysis →added 9/29/2026 - US84025430 cases6/8 sections
I'll search for authoritative information on this patent, including any litigation activity. Let me dig deeper on litigation, the claim set, and any 2026 appellate docket. A few more targeted checks on claims, litigation, and PTAB…
View full analysis →added 9/20/2026 - US8404618B20 cases6/8 sections
US Patent 8404618B2 Summary: Title: Herbicidal composition Assignee: Syngenta Crop Protection AG Switzerland (Current), Syngenta Ltd (Original). Inventors: Andrew Plant, Willy Thaddaeus Rüegg, Jean Wenger, Ulrich Johannes Haas, Anja…
View full analysis →added 7/17/2026 - US84129490 cases6/8 sections
I'll search for authoritative information on US patent 8412949, including any litigation activity. I have the patent specification. Let me get the full claim set and check for any CAFC 2026 docket activity. Let me confirm the complete…
View full analysis →added 9/29/2026 - US84232350 cases6/8 sections
US patent 8423235, titled "Video recording device for vehicle and driving information providing method thereof," was granted to MtekVision Co Ltd. Here is a summary of the patent: Title: Video recording device for vehicle and driving…
View full analysis →added 7/8/2026 - US84288300 cases6/8 sections
I'll verify the patent details against live sources before summarizing. Verification note I checked the patent's Google Patents record (which mirrors USPTO data) and ran targeted searches for litigation and Federal Circuit activity…
View full analysis →added 9/24/2026 - US84476960 cases6/8 sections
Here's a concise summary of US Patent 8,447,696: Patent Number: US8447696B2 Title: System and method for handling peripheral connections to mobile devices Current Assignee: Malikie Innovations Ltd Original Assignee: Research in Motion Ltd…
View full analysis →added 7/22/2026 - US84584920 cases6/8 sections
I'll run a few targeted searches for this specific patent number before summarizing. Let me run a couple more targeted checks on litigation and family specifics. US 8,458,492 B2 — "Crypto-engine for cryptographic processing of data" Search…
View full analysis →added 9/24/2026 - US84679690 cases6/8 sections
I'll search for this specific patent and any associated litigation. Let me check for Federal Circuit activity and any 2026 docket matters. Let me try to retrieve the actual claim text. US 8,467,969 — Identification | Field | Value |…
View full analysis →added 9/29/2026 - US84735530 cases6/8 sections
I'll search for authoritative information on US 8473553, including any CAFC/litigation activity. Let me run more targeted searches for this exact patent number. Summary: US Patent No. 8,473,553 Source of record: Full patent text from…
View full analysis →added 9/24/2026 - US84742280 cases6/8 sections
I'll run targeted searches for this patent number, including any litigation/docket activity. Let me check for any litigation or court docket activity involving this patent number. US 8,474,228 — "Packaging systems and methods for…
View full analysis →added 9/17/2026 - US84753530 cases6/8 sections
I'll run searches against several sources for this specific patent number. Let me check for any PTAB/post-grant proceedings and the actual claim set. Search results for US 8,475,353 (literal ID: 8475353) Scope note up front. I ran web…
View full analysis →added 9/30/2026