Wednesday, July 8, 2026

Patent intelligence · US

US 11261151

Methods for making and using endoxifen

granted A61KA61K45/06A61K9/0053A61P
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 16
Applicant portfolio 8
Related coverage 2
Patent details — US 11261151

Quick answer

US 11261151 (Methods for making and using endoxifen) is held by ATOSSA THERAPEUTICS, INC.. Status: granted. Granted Mar 1, 2022. Expires Feb 24, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
21
CPC classes
A61K, A61K45/06, A61K9/0053, A61P, A61P35/00

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Related coverage

Frequently asked questions

What is US patent 11261151?

US 11261151 (Methods for making and using endoxifen) is held by ATOSSA THERAPEUTICS, INC.. Status: granted. Granted Mar 1, 2022. Expires Feb 24, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11261151?

ATOSSA THERAPEUTICS, INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 8 pharmaceutical patents for this assignee.

When does US 11261151 expire?

Our index shows an expiration date of Feb 24, 2042 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.