Patents by Inventor Gundu Rao Padakandla

Gundu Rao Padakandla 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 ISOMERISATION OF LYCOPENE IN THE PRESENCE OF THIOUREA
    Publication number: 20120197055
    Abstract: The present invention relates to isomerization of Z-lycopene in mixtures of isomers to mixtures enriched with all E-lycopene.
    Type: Application
    Filed: April 6, 2011
    Publication date: August 2, 2012
    Applicant: DIVI'S LABORATORIES LIMITED
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Nageswara Rao Bolneni, Ramesh Babu Kodali
  • PROCESS FOR THE RESOLUTION OF (R,S)-NICOTINE
    Publication number: 20120197022
    Abstract: (R,S)-Nicotine was resolved through diastereomeric salt formation using dibenzoyl-d-tartaric acid and dibenzoyl-l-tartaric acid to obtain enantiomerically pure (S)-nicotine and (R)-nicotine.
    Type: Application
    Filed: April 6, 2011
    Publication date: August 2, 2012
    Applicant: Divi's Laboratories Limited
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Hari Babu Katta
  • PROCESS FOR THE PREPARATION OF PREGABALIN
    Publication number: 20120041212
    Abstract: The present invention provides a new enantioselective method of preparing (S)-3-(aminomethyl)-5-methylhexanoic acid, commonly known as pregabalin. The invention also provides new chiral intermediates useful in the production of pregabalin.
    Type: Application
    Filed: January 3, 2011
    Publication date: February 16, 2012
    Applicant: DIVI'S LABORATORIES LIMITED
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Srinivasan Subramanian Kuduva
  • PROCESS FOR THE PREPARATION OF GABAPENTIN
    Publication number: 20110306787
    Abstract: This invention discloses a process for converting gabapentin acid salt to free gabapentin, where the salt is dissolved in an organic solvent in which both gabapentin acid salt and free gabapentin are soluble. The solution is treated with a powdered alkaline base to liberate free gabapentin which will remain in solution. The insoluble alkali salt of the acid is removed by filtration. From the filtrate free gabapentin is obtained either by adding anti-solvent or by extraction with water.
    Type: Application
    Filed: December 14, 2010
    Publication date: December 15, 2011
    Applicant: DIVI'S LABORATORIES LIMITED
    Inventors: Murali Krishna Prasad Divi, Gundu Rao Padakandla, Mysore Aswatha Narayana Rao, Shaik Nowshuddin, Maddipati Prasad