Patents by Inventor Ravi Shankar Sathu

Ravi Shankar Sathu 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 Deferasirox
    Patent number: 11078167
    Abstract: The present invention provides an improved process for the preparation of Deferasirox of Formula-I substantially free from ‘hydrazino impurity’ by the condensation of 2-(2-hydrophenyl)-4H-1,3-benzoxazin-4-one of Formula-IV with 4-hydrazino benzoic acid of Formula-V in a polar solvent.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: August 3, 2021
    Assignee: Aurobindo Pharma Ltd
    Inventors: Hero Velladurai, Janardhana Rao Vascuri, Ravi Shankar Sathu, Sivakumaran Meenakshisunderam
  • A process for the preparation of Deferasirox
    Publication number: 20200207725
    Abstract: The present invention provides an improved process for the preparation of Deferasirox of Formula-I substantially free from ‘hydrazino impurity’ by the condensation of 2-(2-hydrophenyl)-4H-1,3-benzoxazin-4-one of Formula-IV with 4-hydrazino benzoic acid of Formula-V in a polar solvent.
    Type: Application
    Filed: July 2, 2018
    Publication date: July 2, 2020
    Applicant: Aurobindo Pharma Ltd.
    Inventors: Hero Velladurai, Janardhana Rao Vascuri, Ravi Shankar Sathu, Sivakumaran Meenakshiaunderam