Selenious Acid Patent Expiration

Selenious Acid was first introduced by American Regent Inc in its drug Selenious Acid on Apr 30, 2019. 8 different companies have introduced drugs containing Selenious Acid.


Selenious Acid Patents

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

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Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Selenious Acid US11998565 Trace element compositions, methods of making and use Jul 01, 2041 Am Regent
Selenious Acid US12150957 Trace element compositions, methods of making and use Jul 01, 2041 Am Regent



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 Selenious Acid's patents.

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

Activity Date Patent Number
Patent litigations
Patent Issue Date Used in PTA Calculation 26 Nov, 2024 US12150957
Patent eGrant Notification 26 Nov, 2024 US12150957
Recordation of Patent Grant Mailed 26 Nov, 2024 US12150957
Recordation of Patent eGrant 26 Nov, 2024 US12150957
Email Notification 26 Nov, 2024 US12150957
Mail Patent eGrant Notification 26 Nov, 2024 US12150957
Email Notification 06 Nov, 2024 US12150957
Issue Notification Mailed 06 Nov, 2024 US12150957
Application Is Considered Ready for Issue 25 Oct, 2024 US12150957
Dispatch to FDC 25 Oct, 2024 US12150957


Selenious Acid's Family Patents

Family Patents

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Selenious Acid Generic API Manufacturers

Several generic applications have been filed for Selenious Acid. The first generic version for Selenious Acid was by Fresenius Kabi Usa Llc and was approved on Feb 10, 2025. And the latest generic version is by Kindos Pharmaceuticals Co Ltd and was approved on Feb 3, 2026.

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