Last Updated: May 12, 2026

Details for Patent: 12,337,002


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Which drugs does patent 12,337,002 protect, and when does it expire?

Patent 12,337,002 protects WINLEVI and is included in one NDA.

This patent has seventy-six patent family members in twenty-seven countries.

Summary for Patent: 12,337,002
Title:Enzymatic process for obtaining 17 alpha-monoesters of cortexolone and/or its 9,11-dehydroderivatives
Abstract:The present invention refers to a new enzymatic process for obtaining 17α-monoesters of cortexolone and/or its 9,11-dehydroderivatives starting from the corresponding 17α,21-diesters which comprises an enzymatic alcoholysis reaction. Furthermore, the present invention refers to new crystalline forms of cortexolone-17α-propionate and 9,11-dehydro-cortexolone 17α-butanoate.
Inventor(s):Mauro Ajani, Luigi Moro
Assignee: Cosmo SpA , Cassiopea SpA
Application Number:US18/057,031
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 12,337,002
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;

Drugs Protected by US Patent 12,337,002

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sun Pharm WINLEVI clascoterone CREAM;TOPICAL 213433-001 Aug 26, 2020 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y METHOD OF TREATING ACNE VULGARIS WITH TOPICALLY APPLIED CORTEXOLONE 17ALPHA-PROPIONATE ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 12,337,002

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2503005 ⤷  Start Trial C20250037 Finland ⤷  Start Trial
European Patent Office 2503005 ⤷  Start Trial CA 2025 00047 Denmark ⤷  Start Trial
European Patent Office 2503005 ⤷  Start Trial 301358 Netherlands ⤷  Start Trial
European Patent Office 2503005 ⤷  Start Trial 2025C/551 Belgium ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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