Saturday, July 11, 2026

Patent intelligence · US

US 6482921

Uridyl peptide antibiotic (UPA) derivatives, their synthesis and use

expired A61KA61K38/00
Status expired
Linked drugs 1
Pipeline programs 5
Years to expiry 0
Applicant portfolio 95
Patent details — US 6482921

Quick answer

US 6482921 (Uridyl peptide antibiotic (UPA) derivatives, their synthesis and use) is held by Essential Therapeutics, Inc.. Status: expired. Granted Nov 19, 2002. Expires Nov 14, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
31
CPC classes
A61K, A61K38/00

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Frequently asked questions

What is US patent 6482921?

US 6482921 (Uridyl peptide antibiotic (UPA) derivatives, their synthesis and use) is held by Essential Therapeutics, Inc.. Status: expired. Granted Nov 19, 2002. Expires Nov 14, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6482921?

Essential Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 95 pharmaceutical patents for this assignee.

When does US 6482921 expire?

Our index shows an expiration date of Nov 14, 2022 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.