Patents by Inventor Sarathy Iyengar

Sarathy Iyengar 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).

  • Preparation of 2,3,3,3-tetrafluoropropene and intermediates thereof
    Patent number: 11261146
    Abstract: The present invention provides a process for preparation of 2,3,3,3-tetrafluoropropene and intermediates thereof. Owing to its low global warming potential and zero ozone depleting potential, it is been proposed as a replacement for existing chlorofluorocarbons and hydrofluorocarbons as refrigerant.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 1, 2022
    Assignee: SRF LIMITED
    Inventors: Sarathy Iyengar, Sridhar Jeyaraman, Karthic Natarajan, Nathan Rajamani, Rahul Saxena, Anurag Jain
  • PREPARATION OF 2,3,3,3-TETRAFLUOROPROPENE AND INTERMEDIATES THEREOF
    Publication number: 20210380507
    Abstract: The present invention provides a process for preparation of 2,3,3,3-tetrafluoropropene and intermediates thereof. Owing to its low global warming potential and zero ozone depleting potential, it is been proposed as a replacement for existing chlorofluorocarbons and hydrofluorocarbons as refrigerant.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 9, 2021
    Inventors: Sarathy Iyengar, Sridhar Jeyaraman, Karthic Natarajan, Nathan Rajamani, Rahul Saxena, Anurag Jain
  • Process for the preparation of dibenzenesulfonimide
    Patent number: 10071956
    Abstract: The present invention provides a process for the preparation of dibenzenesulfonimide.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: September 11, 2018
    Assignee: SRF LIMITED
    Inventors: Thirupathi Arumugam, Mariano Patrick Philips, Dilli Babu, Maheshwaran Chellaiah, Sarathy Iyengar, Rajdeep Anand
  • PROCESS FOR THE PREPARATION OF DIBENZENESULFONIMIDE
    Publication number: 20170210705
    Abstract: The present invention provides a process for the preparation of dibenzenesulfonimide.
    Type: Application
    Filed: July 15, 2015
    Publication date: July 27, 2017
    Inventors: Thirupathi ARUMUGAM, Mariano Patrick PHILIPS, Dilli BABU, Maheshwaran CHELLAIAH, Sarathy IYENGAR, Rajdeep ANAND
  • Process for the preparation of pyrazole derivatives
    Patent number: 9650345
    Abstract: The present invention provides a process for the preparation of N-alkylated fluorine-containing pyrazolecarboxylic acid derivatives of Formula I. The present invention further provides a pyrazole compound of formula IIIa.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: May 16, 2017
    Assignee: SRF LIMITED
    Inventors: Srikant Dakshinamoorthy, Thangaselvam Kamaraj, Sarathy Iyengar, Arumugam Nagappan, Rahul Saxena, Rajdeep Anand
  • Process for the Preparation of Pyrazole Derivatives
    Publication number: 20160244412
    Abstract: The present invention provides a process for the preparation of N-alkylated fluorine-containing pyrazolecarboxylic acid derivatives of Formula I. The present invention further provides a pyrazole compound of formula IIIa.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Applicant: SRF LIMITED
    Inventors: Srikant DAKSHINAMOORTHY, Thangaselvam KAMARAJ, Sarathy IYENGAR, Arumugam NAGAPPAN, Rahul SAXENA, Rajdeep ANAND
  • Process for the synthesis of tetrafluoroethanesulfonic acid
    Patent number: 9376379
    Abstract: The present invention provides a process for preparation of tetrafluoroethanesulfonic acid.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 28, 2016
    Assignee: SRF Limited
    Inventors: Sarathy Iyengar, Radha Kumaraswamy, Mariano Patrick Philiphs, Vardaraj Ganeshan, Rahul Saxena, Rajdeep Anand
  • PROCESS FOR THE SYNTHESIS OF TETRAFLUOROETHANESULFONIC ACID
    Publication number: 20150259281
    Abstract: The present invention provides a process for preparation of tetrafluoroethanesulfonic acid.
    Type: Application
    Filed: July 29, 2013
    Publication date: September 17, 2015
    Inventors: Sarathy Iyengar, Radha Kumaraswamy, Mariano Patrick Philiphs, Vardaraj Ganeshan, Rahul Saxena, Rajdeep Anand