Patents by Inventor Amit Sengar

Amit Sengar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of carvedilol and its salts
    Publication number: 20070027202
    Abstract: Disclosed herein is a process for preparation of carvedilol substantially free from its bis-impurity comprises the reaction of 4-(2,3-epoxypropoxy)carbazole and 2-(2-methoxyphenoxy)ethylamine in a polar aprotic solvent media; followed by isolation of carvediol from the reaction mass as an acid addition salt and subsequent conversion into pure carvedilol.
    Type: Application
    Filed: July 5, 2006
    Publication date: February 1, 2007
    Inventors: Ashok Kumar, Ashvini Saxena, Anindya Battacharyya, Amit Sengar, Gunjan Pathak, Satish Soudagar, Pramil Mathur, Avinash Nijasure, Sanjukumar Salunke, Prashant Gautam, Thakur Ramsingh, Dilip Jadhav