Wednesday, July 8, 2026

Patent intelligence · US

US 6448076

Method for chemically acellularizing a biological tissue sample

expired A61KA61K35/12
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 8,292
Patent details — US 6448076

Quick answer

US 6448076 (Method for chemically acellularizing a biological tissue sample) is held by THE REGENTS OF THE UNIVERSITY OF MICHIGAN. Status: expired. Granted Sep 10, 2002. Expires Sep 5, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
21
CPC classes
A61K, A61K35/12

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Frequently asked questions

What is US patent 6448076?

US 6448076 (Method for chemically acellularizing a biological tissue sample) is held by THE REGENTS OF THE UNIVERSITY OF MICHIGAN. Status: expired. Granted Sep 10, 2002. Expires Sep 5, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6448076?

THE REGENTS OF THE UNIVERSITY OF MICHIGAN is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 8,292 pharmaceutical patents for this assignee.

When does US 6448076 expire?

Our index shows an expiration date of Sep 5, 2022 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.