Patents by Inventor Avinash C. Gaikwad

Avinash C. Gaikwad 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).

  • Processes suitable for the preparation of salmeterol
    Patent number: 8648214
    Abstract: The present invention relates to processes for the preparation of 4-hydroxy-??-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol 1-hydroxy-2-naphthoate (salmeterol xinafoate) (12a), the preparation of 4-hydroxy-??-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol (salmeterol) (11), the preparation of protected N-[6-(4-phenylbutoxy)hexyl]amine intermediates (7), and the preparation of 6-substituted (4-phenylbutoxy)hexane intermediates (5), shown below, wherein X is a leaving group and Pg is a protecting group.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: February 11, 2014
    Assignee: Generics [UK] Limited
    Inventors: Vinayak G. Gore, Avinash C. Gaikwad, Maheshkumar Gadakar, Vinay Kumar Shukla
  • Crystalline compounds
    Patent number: 8119662
    Abstract: The present invention relates to a novel crystalline form of zofenopril calcium of formula (I), chemically known as (4S)-1-[(2S)-3-(benzoylthio)-2-methylpropionyl]-4-(phenylthio)-L-proline calcium salt. The present invention further relates to a process for the preparation of the new crystalline form of zofenopril calcium and its use in pharmaceutical preparations.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 21, 2012
    Assignee: Generics [UK] Limited
    Inventors: Vinayak G. Gore, Ashok D. Pehere, Avinash C. Gaikwad, Priyesh S. Vijaykar
  • Zofenopril Calcium
    Publication number: 20110028736
    Abstract: The present invention relates to zofenopril calcium form A substantially free of other forms of zofenopril calcium and to zofenopril calcium having a chemical purity of more than 98.5%. The present invention also relates to methods of preparing such zofenopril calcium. It further relates to compositions comprising such zofenopril calcium.
    Type: Application
    Filed: October 14, 2010
    Publication date: February 3, 2011
    Applicant: Generics [UK] Limited
    Inventors: Vinayak G. Gore, Ashok D. Pehere, Avinash C. Gaikwad, Priyesh S. Vijaykar
  • ZOFENOPRIL CALCIUM
    Publication number: 20090176860
    Abstract: The present invention relates to zofenopril calcium form A substantially free of other forms of zofenopril calcium and to zofenopril calcium having a chemical purity of more than 98.5%. The present invention also relates to methods of preparing such zofenopril calcium. It further relates to compositions comprising such zofenopril calcium.
    Type: Application
    Filed: November 25, 2008
    Publication date: July 9, 2009
    Inventors: Vinayak G. Gore, Ashok D. Pehere, Avinash C. Gaikwad, Priyesh S. Vijaykar
  • NOVEL PROCESS
    Publication number: 20080262267
    Abstract: The present invention relates to processes for the preparation of 4-hydroxy-??-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol 1-hydroxy-2-naphthoate (salmeterol xinafoate) (12a), the preparation of 4-hydroxy-??-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol (salmeterol) (11), the preparation of protected N-[6-(4-phenylbutoxy)hexyl]amine intermediates (7), and the preparation of 6-substituted (4-phenylbutoxy)hexane intermediates (5), shown below, wherein X is a leaving group and Pg is a protecting group.
    Type: Application
    Filed: April 16, 2008
    Publication date: October 23, 2008
    Applicant: Generics [UK] Limited
    Inventors: Vinayak G. Gore, Avinash C. Gaikwad, M. Gadkar, V.K. Shukla
  • Novel Crystalline Compounds
    Publication number: 20080182888
    Abstract: The present invention relates to a novel crystalline form of zofenopril calcium of formula (I), chemically known as (4S)-1-[(2S)-3-(benzoylthio)-2-methylpropionyl]-4-(phenylthio)-L-proline calcium salt. The present invention further relates to a process for the preparation of the new crystalline form of zofenopril calcium and its use in pharmaceutical preparations.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 31, 2008
    Inventors: Vinayak G. Gore, Ashok D. Pehere, Avinash C. Gaikwad, Priyesh S. Vijaykar