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Last Updated: March 29, 2024

DEMULEN 1/35-28 Drug Patent Profile


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When do Demulen 1/35-28 patents expire, and when can generic versions of Demulen 1/35-28 launch?

Demulen 1/35-28 is a drug marketed by Gd Searle Llc and is included in one NDA.

The generic ingredient in DEMULEN 1/35-28 is ethinyl estradiol; ethynodiol diacetate. There are twenty-six drug master file entries for this compound. Five suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; ethynodiol diacetate profile page.

US Patents and Regulatory Information for DEMULEN 1/35-28

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Gd Searle Llc DEMULEN 1/35-28 ethinyl estradiol; ethynodiol diacetate TABLET;ORAL-28 018160-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Try a Trial ⤷  Try a Trial ⤷  Try a Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

International Patents for DEMULEN 1/35-28

See the table below for patents covering DEMULEN 1/35-28 around the world.

Country Patent Number Title Estimated Expiration
Switzerland 451915 Verfahren zur Herstellung eines neuen Amins ⤷  Try a Trial
Japan S511694 ⤷  Try a Trial
Switzerland 476679 Verfahren zur Herstellung neuer ungesättigter Amine ⤷  Try a Trial
France 1491346 Nouvelles amines non saturées et procédé pour leur préparation ⤷  Try a Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for DEMULEN 1/35-28

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1380301 2009C/007 Belgium ⤷  Try a Trial PRODUCT NAME: DROSPIRENONE-ETHINYLESTRADIOL; AUTHORISATION NUMBER AND DATE: BE321386 20080811
1453521 39/2015 Austria ⤷  Try a Trial PRODUCT NAME: ETHINYLESTRADIOL UND EINE KOMBINATION VON LEVONORGESTREL UND ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: 136021 20150224; FIRST REGISTRATION: SK 17/0017/15-S 20150211
1453521 93156 Luxembourg ⤷  Try a Trial PRODUCT NAME: LEVONORGESTREL ET ETHINYLESTRADIOL; FIRST REGISTRATION DATE: 20150211
0136011 2000C/027 Belgium ⤷  Try a Trial PRODUCT NAME: ETHINYLESTRADIOLUM / NORETHISTERONI ACETAS; NAT. REGISTRATION NO/DATE: 19 IS 106 F3 20000911; FIRST REGISTRATION: NL RVG 23909 19991124
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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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. 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.