Pemetrexed Patent Expiration

Pemetrexed was first introduced by Eagle Pharmaceuticals Inc in its drug Pemfexy on Feb 8, 2020. Another drug containing Pemetrexed is Pemetrexed. 2 different companies have introduced drugs containing Pemetrexed.


Pemetrexed Patents

Given below is the list of patents protecting Pemetrexed, 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
Pemfexy US11793813 Pemetrexed formulations Feb 19, 2036 Eagle Pharms
Pemfexy US9604990 Crystalline forms of pemetrexed diacid and manufacturing processes therefor Oct 28, 2035 Eagle Pharms
Pemfexy US7772209 Antifolate combination therapies May 24, 2022

(Expired)

Eagle Pharms



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 Pemetrexed's patents.

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

Activity Date Patent Number
Patent litigations
Recordation of Patent Grant Mailed 19 Oct, 2021 US11147817
Patent Issue Date Used in PTA Calculation 19 Oct, 2021 US11147817
Email Notification 30 Sep, 2021 US11147817
Issue Notification Mailed 29 Sep, 2021 US11147817
Dispatch to FDC 22 Sep, 2021 US11147817
Application Is Considered Ready for Issue 22 Sep, 2021 US11147817
Issue Fee Payment Verified 20 Sep, 2021 US11147817
Issue Fee Payment Received 20 Sep, 2021 US11147817
Electronic Review 01 Jul, 2021 US11147817
Email Notification 01 Jul, 2021 US11147817


Pemetrexed's Family Patents

Family Patents

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