Patents by Inventor Vikas Sharad Kulkarni

Vikas Sharad Kulkarni 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 PREPARING O-DESMETHYLVENLAFAXINE
    Publication number: 20110118357
    Abstract: The present invention provides a convenient and efficient process for the preparation of O-desmethylvenlafaxine (ODV), comprising the reaction of venlafaxine, or a salt thereof, with a thiol reagent such as a dithiol, an aminothiol or an inorganic thiol. The present invention also provides a process for purifying ODV base, said process comprising the steps of mixing crude ODV base with an alcohol to form a suspension and adding acid followed by base to generate ODV base with high purity.
    Type: Application
    Filed: October 18, 2008
    Publication date: May 19, 2011
    Inventors: Vinayak Govind Gore, Vikas Sharad Kulkarni, Madhukar Shaligram Patil