Patents by Inventor Rajaram Bapat Uday

Rajaram Bapat Uday 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 Form-A
    Publication number: 20080300420
    Abstract: A process to prepare (2E)-2-cyano-3-(3, 4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide (Entacapone) eliminating corrosive acids in the purification, with more than 99.5% purity with a Z-isomer content of less than 0.1% comprising condensation of e,4-Dihydroxy{5-nitrobensaldehyde with N,N-diethyl cyanoacetamide in the presence of a base selected from cyclic and acyclic secondary amines and a mixture of solvents, to obtain a crude product, stirring the crude product in a halogenated solvent, filtering and finally crystallization of polymorph A of Entacapone in a solvent.
    Type: Application
    Filed: May 17, 2006
    Publication date: December 4, 2008
    Applicant: SANMAR SPECIALITY CHEMICALS LTD.
    Inventors: Ghatambu Sethuram Chittoor, Rajaram Bapat Uday, Jayamani Munuamy, Naga Venkata Satya Prasanna Anjaneya Radha Krishna Murthy Muppidi