Patents by Inventor Kondalarao Ponnapally

Kondalarao Ponnapally 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 PURE PALIPERIDONE
    Publication number: 20120165527
    Abstract: The present invention relates to an improved process for the preparation of pure Paliperidone of formula (I). The present invention more specifically provides an improved process for the preparation of pure Paliperidone which may contain impurities in the acceptable level of pharmacopoeia requirement specifically 3-{2-[4-(5-Fluoro-benzo[d]isoxazol-3-yl]-piperidin-1-yl]-ethyl}-2-methyl-7,8-dihydro-6H-pyrido[1,2-a]pyrimidine-4,9-dione of Formula (IV).
    Type: Application
    Filed: August 4, 2010
    Publication date: June 28, 2012
    Applicant: ORCHID CHEMICALS & PHARMACEUTICALS LTD.
    Inventors: Buchi Reddy Reguri, Muthulingam Arunagiri, Saravanakumar Kasiyappan Gurusamy, Kondalarao Ponnapally