The catalog
Patent invalidity dossiers.
7,163 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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- US86450370 cases6/8 sections
I'll search for authoritative information on this specific patent number, including any litigation or docket references. Let me run additional targeted searches for any USPTO proceedings or CAFC docket activity involving this patent…
View full analysis →added 9/24/2026 - US86681810 cases6/8 sections
I'll search for authoritative current information on this patent, including any litigation or CAFC activity. Let me run additional targeted searches on litigation/docket activity and current status. US 8,668,181 B2 — Analyst Summary Search…
View full analysis →added 9/24/2026 - US86748090 cases6/8 sections
I'll search for authoritative information on this specific patent number. Let me refine the searches with more specific queries. Let me check specifically for any CAFC 2026 activity and confirm the claim set. US Patent 8,674,809 — Summary…
View full analysis →added 9/24/2026 - US86748490 cases6/8 sections
I'll search for the specific patent number and any litigation records. Let me run a few more targeted checks on litigation, status, and claim text. Summary of U.S. Patent No. 8,674,849 Bibliographic data | Field | Data | |---|---| | Title…
View full analysis →added 9/3/2026 - US86865620 cases6/8 sections
Here is a concise summary of US patent 8686562: Title: Refractory metal nitride capped electrical contact and method for fabricating same Assignee: Infineon Technologies North America Corp (Current Assignee), originally International…
View full analysis →added 7/1/2026 - US86994030 cases6/8 sections
I'll search for this specific patent number and check for any CAFC 2026 docket activity. Let me search for the full claim set and any litigation or appellate activity. Let me get the exact claim text and do a final check on…
View full analysis →added 9/24/2026 - US87002980 cases6/8 sections
I'll research US patent 8700298 across USPTO and litigation sources. Let me check specifically for litigation and CAFC 2026 activity involving this patent. Let me run a couple more targeted checks for any CAFC or PTAB proceedings. US…
View full analysis →added 9/24/2026 - US87063620 cases6/8 sections
I'll run targeted searches for this exact patent number, then reconcile them against the authoritative full text I've been given. Now let me check the Federal Circuit / litigation dockets and pull the full claim set. Summary of US…
View full analysis →added 9/24/2026 - US87114080 cases6/8 sections
US 8,711,408 B2 — Patent Summary Verification notes on the searches - USPTO/patent databases (Google Patents, FreePatentsOnline, uspto.report, Unified Patents): All consistently confirm the patent US8711408B2 (application 13/108,925). I…
View full analysis →added 8/28/2026 - US87124410 cases6/8 sections
US Patent 8712441, titled "Methods and systems for temporarily sharing position data between mobile-device users," was granted to XONE Inc. as the original assignee and is currently assigned to Piney Woods Mobility LLC. The patent lists…
View full analysis →added 6/3/2026 - US87246220 cases6/8 sections
Here is a concise summary of US patent 8724622: US Patent: 8724622 Title: System and method for instant VoIP messaging Current Assignee: Uniloc 2017 LLC Original Assignee: Empire IP LLC Inventor: Michael J. Rojas Filing Date: 2012-07-11…
View full analysis →added 5/10/2026 - US87251230 cases6/8 sections
I'll search for this specific patent number and any litigation/docket activity. Let me search specifically for litigation and any CAFC docket activity involving this patent. Let me verify the abstract and independent claims, and check for…
View full analysis →added 9/24/2026 - US87258130 cases6/8 sections
I'll search for authoritative information on this patent number. US Patent 8,725,813 — Summary Sourcing note: I retrieved bibliographic data from Google Patents (patents.google.com/patent/US8725813/en) and uspto.report (patent grant…
View full analysis →added 9/24/2026 - US87320850 cases6/8 sections
A search of the USPTO database for patent number US8732085B2 provides the following information: Patent Number: US8732085B2 Title: Proxy card providing indirect funds access Assignee: Enpulz, L.L.C., Chicago, IL (US) (at the time of issue)…
View full analysis →added 5/22/2026 - US87345160 cases6/8 sections
I'll search for authoritative information on US 8,734,516, including any litigation references. Let me check for litigation and any appellate docket activity. Let me try to pull the actual claim set and confirm the litigation/docket…
View full analysis →added 9/26/2026 - US87389250 cases6/8 sections
I'll run several targeted searches for this exact patent number and any 2026 CAFC activity. Bottom line first I ran targeted searches for the exact string 8738925 / US 8,738,925 (and the full-number forms 8,738,925 and 8738925 B1). I found…
View full analysis →added 9/26/2026 - US8750230 cases6/8 sections
I'll search for this specific patent number and check for any litigation dockets. Let me run more targeted searches to verify against the authoritative record and check for litigation. Let me attempt to recover the exact claim text and…
View full analysis →added 9/24/2026 - US87531470 cases6/8 sections
I'll search for authoritative information on this patent, including any CAFC or litigation activity. Let me run additional targeted searches for litigation/docket activity specific to this number. Let me do one final check for any PTAB/IPR…
View full analysis →added 9/29/2026 - US87559210 cases6/8 sections
I'll search for the specific patent and any related litigation records. The initial searches returned no results. Let me try broader queries. I have solid patent data. Let me check for any litigation or CAFC involvement with this specific…
View full analysis →added 9/4/2026 - US87619080 cases6/8 sections
I'll research US patent 8761908 across the sources you specified. Let me run more targeted searches on the patent and any litigation. Let me verify litigation/docket status and patent bibliographic details. US Patent 8,761,908 — Research…
View full analysis →added 9/24/2026