Unoprostone Isopropyl Patent Expiration

Unoprostone Isopropyl is Used for treating ocular hypertension. It was first introduced by Sucampo Pharma Americas Llc in its drug Rescula on Aug 3, 2000.


Unoprostone Isopropyl Patents

Given below is the list of patents protecting Unoprostone Isopropyl, 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
Rescula US6458836 Treatment of ocular hypertension and glaucoma Jul 09, 2021

(Expired)

Sucampo Pharma Llc
Rescula US6770675 Compositions and methods for reducing ocular hypertension Nov 24, 2018

(Expired)

Sucampo Pharma Llc
Rescula US5221763 Prostaglandins of the F series Jul 15, 2012

(Expired)

Sucampo Pharma Llc



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 Unoprostone Isopropyl's patents.

Given below is the list recent legal activities going on the following patents of Unoprostone Isopropyl.

Activity Date Patent Number
Patent litigations
Entity Status Set To Undiscounted (Initial Default Setting or Status Change) 15 May, 2009 US6458836
Applicant Has Filed a Verified Statement of Small Entity Status in Compliance with 37 CFR 1.27 28 Mar, 2006 US6458836
Recordation of Patent Grant Mailed 03 Aug, 2004 US6770675
Patent Issue Date Used in PTA Calculation 03 Aug, 2004 US6770675
Issue Notification Mailed 15 Jul, 2004 US6770675
Receipt into Pubs 02 Jul, 2004 US6770675
Dispatch to FDC 30 Jun, 2004 US6770675
Application Is Considered Ready for Issue 30 Jun, 2004 US6770675
Receipt into Pubs 29 Jun, 2004 US6770675
Receipt into Pubs 26 May, 2004 US6770675


Unoprostone Isopropyl's Family Patents

Family Patents

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