Last Updated: November 8, 2026

Details for Patent: 11,850,251

Name: Drug Patent Intelligence for US Patent 11850251
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

« Back to Dashboard

Which drugs does patent 11,850,251 protect, and when does it expire?

Patent 11,850,251 protects ANNOVERA and is included in one NDA.

This patent has eighteen patent family members in seventeen countries.

Summary for Patent: 11,850,251

Title:	System for providing birth control
Abstract:	The present disclosure relates to a vaginal system that prevents pregnancy comprised of segesterone acetate and ethinyl estradiol and is configured for thirteen 28-day product-use cycles.
Inventor(s):	Bruce Variano
Assignee:	Population Council Inc
Application Number:	US17/188,857
Patent Claim Types: see list of patent claims	Use;

Drugs Protected by US Patent 11,850,251

Glossary

Subscribe to access the full database, or 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
Mayne Pharma	ANNOVERA	ethinyl estradiol; segesterone acetate	RING;VAGINAL	209627-001	Aug 10, 2018		RX	Yes	Yes	⤷ Start Trial	⤷ Start Trial				METHOD OF PREVENTING PREGNANCY BY INSERTING A VAGINAL SYSTEM CONTAINING 103 MG OF SEGESTERONE ACETATE AND 17.4 MG OF ETHINYL ESTRADIOL FOR UP TO 1THIRTEEN 21/7-DAY (IN/OUT) CYCLES	⤷ 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 11,850,251

Subscribe to access the full database, or Start Trial
Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	120976	⤷ Start Trial
Australia	2020294780	⤷ Start Trial
Brazil	112021025853	⤷ Start Trial
Canada	3141077	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.