Wednesday, July 8, 2026

Patent intelligence · US

US 11253557

Therapeutic bacteriophage compositions

granted A61KA61K35/76
Status granted
Pipeline programs 6
Years to expiry 16
Applicant portfolio 5
Patent details — US 11253557

Quick answer

US 11253557 (Therapeutic bacteriophage compositions) is held by Armata Pharmaceuticals, Inc.. Status: granted. Granted Feb 22, 2022. Expires Feb 17, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
22
CPC classes
A61K, A61K35/76

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Frequently asked questions

What is US patent 11253557?

US 11253557 (Therapeutic bacteriophage compositions) is held by Armata Pharmaceuticals, Inc.. Status: granted. Granted Feb 22, 2022. Expires Feb 17, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11253557?

Armata Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 5 pharmaceutical patents for this assignee.

When does US 11253557 expire?

Our index shows an expiration date of Feb 17, 2042 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.