Patents by Inventor Biju Kumar Gopinathen Pillai

Biju Kumar Gopinathen Pillai 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 an optically active 5H-pyrrolo [3,4-B] pyrazine derivative
    Patent number: 7863273
    Abstract: A substantially pure dextrorotatory isomer of zopiclone or a pharmaceutically acceptable salt thereof and crystalline forms thereof are provided. Also provided is a process for its preparation and pharmaceutical compositions containing same.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: January 4, 2011
    Assignee: Glenmark Generics Ltd.
    Inventors: Biju Kumar Gopinathen Pillai, Sankar Arjunan, Nitin Sharad Chandra Pradhan, Narendra Shriram Joshi
  • Process For The Preparation of an Optically Active 5H-Pyrrolo [3,4-B] Pyrazine Derivative
    Publication number: 20090054441
    Abstract: A substantially pure dextrorotatory isomer of zopiclone or a pharmaceutically acceptable salt thereof and crystalline forms thereof are provided. Also provided is a process for its preparation and pharmaceutical compositions containing same.
    Type: Application
    Filed: December 29, 2006
    Publication date: February 26, 2009
    Inventors: Biju Kumar Gopinathen Pillai, Sankar Arjunan, Nitin Sharad Chandra Pradhan, Narendra Shriram Joshi
  • Process for the purification of fluconazole
    Publication number: 20050282878
    Abstract: The present invention relates to processes for the purification of crude fluconazole including at least a first leaching, a second leaching, and an acid/base treatment and to highly purified fluconazole produced from the processes.
    Type: Application
    Filed: April 12, 2005
    Publication date: December 22, 2005
    Inventors: Batchu Chandrasekhar, Ramasubramanian Sridharan, Biju Kumar Gopinathen Pillai, Shekhar Bhirud