Wednesday, July 8, 2026

Patent intelligence · US

US 6399580

Methods and compositions for stimulating tissue growth and epithelial moisturization

expired A61KA61K31/00A61K31/047A61K31/336
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 8,292
Patent details — US 6399580

Quick answer

US 6399580 (Methods and compositions for stimulating tissue growth and epithelial moisturization) is held by The Regents of the University of California. Status: expired. Granted Jun 4, 2002. Expires May 30, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
4
CPC classes
A61K, A61K31/00, A61K31/047, A61K31/336, A61K31/366, A61K31/437

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Frequently asked questions

What is US patent 6399580?

US 6399580 (Methods and compositions for stimulating tissue growth and epithelial moisturization) is held by The Regents of the University of California. Status: expired. Granted Jun 4, 2002. Expires May 30, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6399580?

The Regents of the University of California is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 8,292 pharmaceutical patents for this assignee.

When does US 6399580 expire?

Our index shows an expiration date of May 30, 2022 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.