Glycerol Phenylbutyrate Patent Expiration

Glycerol Phenylbutyrate is Used for managing urea cycle disorders and nitrogen metabolism disorders. It was first introduced by Horizon Therapeutics Us Holding Llc in its drug Ravicti on Feb 1, 2013. 2 different companies have introduced drugs containing Glycerol Phenylbutyrate.


Glycerol Phenylbutyrate Patents

Given below is the list of patents protecting Glycerol Phenylbutyrate, 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
Ravicti US8404215 Methods of therapeutic monitoring of nitrogen scavenging Mar 09, 2032 Horizon Therap Us
Ravicti US9095559 Methods of therapeutic monitoring of nitrogen scavenging drugs Mar 09, 2032 Horizon Therap Us
Ravicti US10045958 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10045959 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10183002 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10183003 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10183004 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10183005 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10183006 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US10668040 Treatment of urea cycle disorders in neonates and infants Sep 22, 2030 Horizon Therap Us
Ravicti US8642012 Methods of treatment using ammonia-scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US9254278 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US9326966 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US9561197 Methods of therapeutic monitoring of phenylacetic acid prodrugs Sep 22, 2030 Horizon Therap Us
Ravicti US9962359 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US9999608 Methods of therapeutic monitoring of nitrogen scavenging drugs Sep 22, 2030 Horizon Therap Us
Ravicti US5968979 Triglycerides and ethyl esters of phenylalkanoic acid and phenylalkenoic acid useful in treatment of various disorders Feb 07, 2015

(Expired)

Horizon Therap Us



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 Glycerol Phenylbutyrate's patents.

Given below is the list recent legal activities going on the following patents of Glycerol Phenylbutyrate.

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 4th Year, Large Entity 30 Nov, 2023 US10668040
Payment of Maintenance Fee, 8th Year, Large Entity 28 Oct, 2023 US9326966(Litigated)
Payment of Maintenance Fee, 8th Year, Large Entity 07 Aug, 2023 US9254278(Litigated)
Payment of Maintenance Fee, 8th Year, Large Entity 03 Feb, 2023 US9095559(Litigated)
Payment of Maintenance Fee, 4th Year, Large Entity 22 Jul, 2022 US10183002
Payment of Maintenance Fee, 4th Year, Large Entity 22 Jul, 2022 US10183006
Payment of Maintenance Fee, 4th Year, Large Entity 22 Jul, 2022 US10183003
Payment of Maintenance Fee, 4th Year, Large Entity 22 Jul, 2022 US10183004
Payment of Maintenance Fee, 4th Year, Large Entity 22 Jul, 2022 US10183005
Payment of Maintenance Fee, 4th Year, Large Entity 14 Feb, 2022 US10045959


Glycerol Phenylbutyrate's Family Patents

Family Patents

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Glycerol Phenylbutyrate Generic API Manufacturers

Only one generic application has been filed for Glycerol Phenylbutyrate.

Given below is the list of companies who have filed for Glycerol Phenylbutyrate generic, along with the locations of their manufacturing plants worldwide.


1. ENDO OPERATIONS

Endo Operations Ltd has filed for 1 generic for Glycerol Phenylbutyrate. Given below are the details of the strengths of this generic introduced by Endo Operations.

Strength Dosage Form Availability Application Pathway TE code Launch Date
1.1GM/ML

liquid Discontinued ORAL N/A Dec 2, 2021