Zolpidem Tartrate was first introduced by Sanofi Aventis Us Llc in its drug Ambien on Dec 16, 1992. Other drugs containing Zolpidem Tartrate are Intermezzo, Tovalt Odt, Edluar, Zolpimist, Zolpidem Tartrate, Ambien Cr. 36 different companies have introduced drugs containing Zolpidem Tartrate.

Zolpidem Tartrate Patents

Given below is the list of patents protecting Zolpidem Tartrate, along with the drug name that holds that patent and the company name owning that drug.

Drug Used in	Drug Patent Number	Drug Patent Title	Drug Patent Expiry	Drug Owner
Ambien Cr	US6514531	Controlled-release dosage forms comprising zolpidem or a salt thereof	Dec 01, 2019 (Expired)	Sanofi Aventis Us
Ambien Cr	US6514531 (Pediatric)	Controlled-release dosage forms comprising zolpidem or a salt thereof	Jun 01, 2020 (Expired)	Sanofi Aventis Us
Edluar	US6761910	Pharmaceutical composition for the treatment of acute disorders	Sep 24, 2019 (Expired)	Mylan Speciality Lp
Edluar	US8512747	Pharmaceutical composition for the treatment of acute disorders	Sep 24, 2019 (Expired)	Mylan Speciality Lp
Edluar	US9265720	Pharmaceutical formulations useful in the treatment of insomnia	Feb 25, 2031	Mylan Speciality Lp
Edluar	US9597281	Pharmaceutical formulations useful in the treatment of insomnia	Apr 06, 2027	Mylan Speciality Lp
Intermezzo	US7658945	Compositions for delivering hypnotic agents across the oral mucosa and methods of use thereof	Apr 15, 2027	Purdue Pharma
Intermezzo	US7682628	Compositions for delivering hypnotic agents across the oral mucosa and methods of use thereof	Feb 16, 2025	Purdue Pharma
Intermezzo	US8242131	Methods of treating middle-of-the-night insomnia	Aug 20, 2029	Purdue Pharma
Intermezzo	US8252809	Compositions for treating insomnia	Feb 16, 2025	Purdue Pharma
Zolpimist	US7632517	Buccal, polar and non-polar spray containing zolpidem	Oct 01, 2017 (Expired)	Aytu
Zolpimist	US8236285	Buccal, polar and non-polar spray containing zolpidem	Aug 07, 2032	Aytu

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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 Zolpidem Tartrate's patents.

Latest Legal Activities on Zolpidem Tartrate's Patents

Given below is the list recent legal activities going on the following patents of Zolpidem Tartrate.

Event	Date	Patent/Publication
Legal Activities for all Patents
Expire Patent	15 Jan, 2018	US7632517
Expire Patent	02 Sep, 2016	US8236285
Entity Status Set To Undiscounted (Initial Default Setting or Status Change)	09 Apr, 2014	US7632517
Mail-Petition Decision - Accept Late Payment of Maintenance Fees - Granted	09 Apr, 2014	US7632517
Petition Decision - Accept Late Payment of Maintenance Fees - Granted	09 Apr, 2014	US7632517
Petition to Accept Late Payment of Maintenance Fee Payment Filed	09 Apr, 2014	US7632517
Expire Patent	10 Jan, 2014	US7632517
Patent Issue Date Used in PTA Calculation	07 Aug, 2012	US8236285
Recordation of Patent Grant Mailed	07 Aug, 2012	US8236285
Issue Notification Mailed	18 Jul, 2012	US8236285

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