Patents by Inventor Srinivas Rao Velivela

Srinivas Rao Velivela 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 sofosbuvir
    Patent number: 10239910
    Abstract: The present invention relates to an improved, commercially viable and industrially advantageous process for the preparation of sofosbuvir, which uses reagents that are less expensive and easier to handle.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: March 26, 2019
    Assignee: OPTIMUS DRUGS (P) LIMITED
    Inventors: Srinivas Reddy Desi Reddy, Srinivas Rao Velivela
  • Process for the preparation of Ledipasvir
    Patent number: 10118912
    Abstract: An improved process is provided for the preparation of Ledipasvir and its pharmaceutically acceptable salts or solvates thereof, which is useful as an antiviral agent. This disclosure also provides a process for the preparation of key intermediates of Ledipasvir.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 6, 2018
    Assignee: Optimus Drugs Private Ltd.
    Inventors: Dnyandev Ragho Rane, Srinivas Reddy Desi Reddy, Subbareddy Peketi, Srinivas Rao Velivela
  • PROCESS FOR THE PREPARATION OF SOFOSBUVIR
    Publication number: 20180022774
    Abstract: The present invention relates to an improved, commercially viable and industrially advantageous process for the preparation of sofosbuvir, which uses reagents that are less expensive and easier to handle.
    Type: Application
    Filed: May 8, 2017
    Publication date: January 25, 2018
    Inventors: Srinivas Reddy Desi Reddy, Srinivas Rao Velivela
  • PROCESS FOR THE PREPARATION OF LEDIPASVIR
    Publication number: 20170197944
    Abstract: An improved process is provided for the preparation of Ledipasvir and its pharmaceutically acceptable salts or solvates thereof, which is useful as an antiviral agent. This disclosure also provides a process for the preparation of key intermediates of Ledipasvir.
    Type: Application
    Filed: June 29, 2016
    Publication date: July 13, 2017
    Applicant: Optimus Drugs, LLC
    Inventors: Srinivas Reddy Desi Reddy, Subbareddy Peketi, Dnyandev Ragho Rane, Srinivas Rao Velivela