Wednesday, July 8, 2026

Patent intelligence · US

US 6022861

Ketoheterocyclic inhibitors of factor Xa

expired A61KA61K38/00
Status expired
Linked drugs 2
Pipeline programs 6
Years to expiry 0
Applicant portfolio 43
Patent details — US 6022861

Quick answer

US 6022861 (Ketoheterocyclic inhibitors of factor Xa) is held by COR Therapeutics, Inc.. Status: expired. Granted Feb 8, 2000. Expires Feb 3, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
45
CPC classes
A61K, A61K38/00

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Frequently asked questions

What is US patent 6022861?

US 6022861 (Ketoheterocyclic inhibitors of factor Xa) is held by COR Therapeutics, Inc.. Status: expired. Granted Feb 8, 2000. Expires Feb 3, 2020 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6022861?

COR Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 43 pharmaceutical patents for this assignee.

When does US 6022861 expire?

Our index shows an expiration date of Feb 3, 2020 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.