Patents by Inventor Sumangala Venkatramana

Sumangala Venkatramana 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).

  • Patent number: 8759513
    Abstract: The present invention discloses a stable amorphous form of Rifaximin characterized by having X-ray powder diffraction pattern as given in FIG. 1, having a 2? peaks at 7.2 and having moisture content in the range of 3% to 4% preferably, 3.4% to 3.7%. This invention also discloses a novel process for its preparation.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: June 24, 2014
    Assignee: Sequent Scientific Limited
    Inventors: Sumangala Venkatramana, Vijesh Alanthatta Madathil, Pejala Kakrannaya Vasudeva, Thangavel Arulmoli
  • Publication number: 20140012001
    Abstract: The present invention discloses a stable amorphous form of Rifaximin characterised by having X-ray powder diffraction pattern as given in FIG. 1, having a 2? peaks at 7.2 and having moisture content in the range of 3% to 4% preferably, 3.4% to 3.7%. This invention also discloses a novel process for its preparation.
    Type: Application
    Filed: August 24, 2011
    Publication date: January 9, 2014
    Applicant: SEQUENT SCIENTIFIC LTD.
    Inventors: Sumangala Venkatramana, Vjesh Alanthatta Madathil, Pejakala Kakrannaya Vasudeva, Thangavel Arulmoli