Wednesday, July 8, 2026

Patent intelligence · US

US 12201591

Sustained release compositions of endoxifen

granted A61KA61K31/135A61K31/138A61K31/343
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 19
Applicant portfolio 8
Related coverage 2
Patent details — US 12201591

Quick answer

US 12201591 (Sustained release compositions of endoxifen) is held by ATOSSA THERAPEUTICS, INC.. Status: granted. Granted Jan 21, 2025. Expires Jan 16, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
31
CPC classes
A61K, A61K31/135, A61K31/138, A61K31/343, A61K31/4525, A61K31/496

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Related coverage

Frequently asked questions

What is US patent 12201591?

US 12201591 (Sustained release compositions of endoxifen) is held by ATOSSA THERAPEUTICS, INC.. Status: granted. Granted Jan 21, 2025. Expires Jan 16, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 12201591?

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 12201591 expire?

Our index shows an expiration date of Jan 16, 2045 (19 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.