Patents by Inventor Ganesh Mukund Oak

Ganesh Mukund Oak 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 manufacture of citalopram hydrobromide from 5-bromophthalide
    Patent number: 6812355
    Abstract: A process for the preparation of 1-(4′-fluorophenyl)-1-(3-dimethylamino-propyl)-5-phthalanecarbonitrile of formula (I), or a pharmaceutically acceptable salt thereof, comprising performing two successive Grignard reactions on 5-bromophthalide, wherein the 5-bromophthalide is reacted with the first Grignard reagent in the presence of a Lewis acid, so reducing by-product formation and improving yields.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: November 2, 2004
    Assignee: Sekhsaria Chemicals Limited
    Inventors: Nandkumar Chodankar, Ajit Bhobhe, Ganesh Mukund Oak, Philip Eappen