Last Updated: August 2, 2026

FEMPATCH Drug Patent Profile


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Which patents cover Fempatch, and when can generic versions of Fempatch launch?

Fempatch is a drug marketed by Parke Davis and is included in one NDA.

The generic ingredient in FEMPATCH is estradiol. There are seventy-five drug master file entries for this compound. Forty-seven suppliers are listed for this compound. Additional details are available on the estradiol profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Fempatch

A generic version of FEMPATCH was approved as estradiol by BARR LABS INC on October 22nd, 1997.

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Summary for FEMPATCH
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for FEMPATCH

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Parke Davis FEMPATCH estradiol FILM, EXTENDED RELEASE;TRANSDERMAL 020417-001 Dec 3, 1996 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Supplementary Protection Certificates for FEMPATCH

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
0136011 2000C/027 Belgium ⤷  Start Trial PRODUCT NAME: ETHINYLESTRADIOLUM / NORETHISTERONI ACETAS; NAT. REGISTRATION NO/DATE: 19 IS 106 F3 20000911; FIRST REGISTRATION: NL RVG 23909 19991124
2861072 C202430012 Spain ⤷  Start Trial PRODUCT NAME: COMPOSICION QUE CONTIENE ESTRADIOL, INCLUIDO EN FORMA DE HEMIHIDRATO, Y PROGESTERONA.; NATIONAL AUTHORISATION NUMBER: 85988-NL/H/4994/001/DC; DATE OF AUTHORISATION: 20210528; NUMBER OF FIRST AUTHORISATION IN EUROPEAN ECONOMIC AREA (EEA): BE582231; DATE OF FIRST AUTHORISATION IN EEA: 20210406
2782584 21C1058 France ⤷  Start Trial PRODUCT NAME: COMPOSITION CONTENANT A LA FOIS DE L'ESTRADIOL (17SS-ESTRADIOL), Y COMPRIS SOUS FORME HEMIHYDRATEE, ET DE LA PROGESTERONE; NAT. REGISTRATION NO/DATE: NL51886 20210421; FIRST REGISTRATION: BE - BE582231 20210406
1453521 122015000093 Germany ⤷  Start Trial PRODUCT NAME: LEVONORGESTREL UND ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: 87675.00.00 20150720; FIRST REGISTRATION: SLOWAKEI 17/0017/15-S 20150129
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

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