Ethinyl Estradiol; Norethindrone Acetate Patent Expiration

Ethinyl Estradiol; Norethindrone Acetate is Used for preventing pregnancy in women using oral contraceptives. It was first introduced by Parke Davis Laboratories Div Warner Lambert Co in its drug Norlestrin 21 1/50 on Approved Prior to Jan 1, 1982. Other drugs containing Ethinyl Estradiol; Norethindrone Acetate are Estrostep Fe, Loestrin 24 Fe, Taytulla, Minastrin 24 Fe, Loestrin Fe 1/20, Norlestrin 21 2.5/50, Lo Loestrin Fe, Loestrin 21 1.5/30, Femhrt, Lo Minastrin Fe, Loestrin 21 1/20, Estrostep 21, Femlyv, Loestrin Fe 1.5/30, Norlestrin 28 1/50. 20 different companies have introduced drugs containing Ethinyl Estradiol; Norethindrone Acetate.


Ethinyl Estradiol; Norethindrone Acetate Patents

Given below is the list of patents protecting Ethinyl Estradiol; Norethindrone Acetate, along with the drug name that holds that patent and the company name owning that drug.

Filter patents by

Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Femlyv US12178824 Orodispersible formulations Jun 24, 2041 Millicent Pr
Lo Loestrin Fe US7704984 Extended estrogen dosing contraceptive regimen Feb 02, 2029 Apil
Lo Minastrin Fe US7704984 Extended estrogen dosing contraceptive regimen Feb 02, 2029 Apil
Taytulla US6652880 Oral pharmaceutical compositions containing long-chain triglycerides and liphophilic surfactants Mar 29, 2020

(Expired)

Apil
Lo Minastrin Fe US6667050 Chewable oral contraceptive Apr 06, 2019

(Expired)

Apil
Minastrin 24 Fe US6667050 Chewable oral contraceptive Apr 06, 2019

(Expired)

Apil
Loestrin 24 Fe US5552394 Low dose oral contraceptives with less breakthrough bleeding and sustained efficacy Jul 22, 2014

(Expired)

Teva Branded Pharm
Lo Loestrin Fe US5552394 Low dose oral contraceptives with less breakthrough bleeding and sustained efficacy Jul 22, 2014

(Expired)

Apil
Lo Minastrin Fe US5552394 Low dose oral contraceptives with less breakthrough bleeding and sustained efficacy Jul 22, 2014

(Expired)

Apil
Minastrin 24 Fe US5552394 Low dose oral contraceptives with less breakthrough bleeding and sustained efficacy Jul 22, 2014

(Expired)

Apil
Taytulla US5552394 Low dose oral contraceptives with less breakthrough bleeding and sustained efficacy Jul 22, 2014

(Expired)

Apil



A patent's expiry date may change depending upon legal activities going on that patent. Critical activities like abandoning of a patent, term extension of a patent or amendment of its claims can increase or decrease the life of a patent hence affecting its expiry date and in turn affecting the generic launch date of that drug. Tracking these ongoing activities on a patent application helps to keep an eye on the latest developments in the patent process of the drug which can give an idea of how early a drug's generic could be available. The next section provides a list of recent legal activities on Ethinyl Estradiol; Norethindrone Acetate's patents.

Given below is the list recent legal activities going on the following patents of Ethinyl Estradiol; Norethindrone Acetate.

Activity Date Patent Number
Patent litigations
File Marked Found 05 Apr, 2017 US6652880
Recordation of Patent Grant Mailed 25 Nov, 2003 US6652880
Patent Issue Date Used in PTA Calculation 25 Nov, 2003 US6652880
Issue Notification Mailed 06 Nov, 2003 US6652880
Receipt into Pubs 16 Oct, 2003 US6652880
Application Is Considered Ready for Issue 13 Oct, 2003 US6652880
Receipt into Pubs 01 Oct, 2003 US6652880
Issue Fee Payment Received 25 Aug, 2003 US6652880
Issue Fee Payment Verified 25 Aug, 2003 US6652880
Receipt into Pubs 18 Aug, 2003 US6652880


Ethinyl Estradiol; Norethindrone Acetate's Family Patents

Family Patents

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Ethinyl Estradiol; Norethindrone Acetate Generic API Manufacturers

Several generic applications have been filed for Ethinyl Estradiol; Norethindrone Acetate. The first generic version for Ethinyl Estradiol; Norethindrone Acetate was by Dr Reddys Laboratories Sa and was approved on Feb 5, 2001. And the latest generic version is by Aurobindo Pharma Ltd and was approved on Dec 6, 2023.

Given below is the list of companies who have filed for Ethinyl Estradiol; Norethindrone Acetate generic, along with the locations of their manufacturing plants worldwide.