Patents by Inventor Dharmesh Ramniklal Dhameliya

Dharmesh Ramniklal Dhameliya 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 ENTACAPONE
    Publication number: 20100234632
    Abstract: The present invention relates to an improved process for the preparation of Entacapone of formula (I) comprising a step of, condensation of 3,4-dihydroxy-5-nitrobenzaldehyde of formula (II) with N,N-diethylcyanoacetamide of formula (III) in the presence of two component solvent system, a catalyst and optionally a phase transfer catalyst to give Entacapone of formula (I).
    Type: Application
    Filed: August 13, 2007
    Publication date: September 16, 2010
    Inventors: Pandurang Balwant Deshpande, Anand Kumar Randey, Dharmesh Ramniklal Dhameliya, Bhimsing Rathod Dayawant, Parven Kumar Luthra