Wednesday, July 8, 2026

Patent intelligence · US

US 6455063

Propionibacterium P-63 for use in direct fed microbials for animal feeds

expired A61KA61K35/74A61K35/744A61K35/745
Status expired
Linked drugs 3
Pipeline programs 6
Years to expiry 0
Applicant portfolio 8,292
Patent details — US 6455063

Quick answer

US 6455063 (Propionibacterium P-63 for use in direct fed microbials for animal feeds) is held by The Board of Regents for Oklahoma State University. Status: expired. Granted Sep 24, 2002. Expires Sep 19, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
9
CPC classes
A61K, A61K35/74, A61K35/744, A61K35/745, A61K35/747

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Frequently asked questions

What is US patent 6455063?

US 6455063 (Propionibacterium P-63 for use in direct fed microbials for animal feeds) is held by The Board of Regents for Oklahoma State University. Status: expired. Granted Sep 24, 2002. Expires Sep 19, 2022 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6455063?

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

When does US 6455063 expire?

Our index shows an expiration date of Sep 19, 2022 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.