Wednesday, July 8, 2026

Patent intelligence · US

US 9138447

Antimicrobial agent and method for the production thereof

granted A61KA61K31/232A61K35/74A61P
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 9
Applicant portfolio 69
Patent details — US 9138447

Quick answer

US 9138447 (Antimicrobial agent and method for the production thereof) is held by University College Cardiff Consultants Limited. Status: granted. Granted Sep 22, 2015. Expires Sep 17, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
19
CPC classes
A61K, A61K31/232, A61K35/74, A61P, A61P31/04, A61P31/10

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Frequently asked questions

What is US patent 9138447?

US 9138447 (Antimicrobial agent and method for the production thereof) is held by University College Cardiff Consultants Limited. Status: granted. Granted Sep 22, 2015. Expires Sep 17, 2035 (9 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9138447?

University College Cardiff Consultants Limited is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 69 pharmaceutical patents for this assignee.

When does US 9138447 expire?

Our index shows an expiration date of Sep 17, 2035 (9 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.