Patents by Inventor Pravin Chaburao Kolhe

Pravin Chaburao Kolhe 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 a benzazepine derivative
    Patent number: 9428461
    Abstract: Provided is an industrially scalable process for the preparation of a benzazepine derivative, namely, 7-chloro-5-hydroxy-1-[2-methyl-4-(2-methyl benzoyl amino) benzoyl]-2,3,4,5-tetrahydro-1H-1-benzazepine (generically referred as Tolvaptan).
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: August 30, 2016
    Assignee: RPG LIFE SCIENCES LIMITED
    Inventors: Uday Rajaram Bapat, Ranjan Prasad Srivastava, Pravin Chaburao Kolhe, Pravin Ganpat Talekar
  • PROCESS FOR THE PREPARATION OF A BENZAZEPINE DERIVATIVE
    Publication number: 20150112059
    Abstract: Provided is an industrially scalable process for the preparation of a benzazepine derivative, namely, 7-chloro-5-hydroxy-1-[2-methyl-4-(2-methyl benzoyl amino) benzoyl]-2,3,4,5-tetrahydro-1H-1-benzazepine (generically referred as Tolvaptan).
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Inventors: Uday Rajaram BAPAT, Ranjan Prasad Srivastava, Pravin Chaburao Kolhe, Pravin Ganpat Talekar