Patents by Inventor Rajasekaran Ramanathan

Rajasekaran Ramanathan 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 2,3,3,3-tetrafluoropropene from methyl chloride and chlorodifluoromethane
    Patent number: 10239804
    Abstract: The present invention relates to a process for preparation of olefins containing fluorine.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: March 26, 2019
    Assignee: SRF LIMITED
    Inventors: Jose George, Rajasekaran Ramanathan, Sunil Raj, Anurag Katiyar, Ambuj Mishra, Rajdeep Anand
  • PROCESS FOR THE PREPARATION OF OLEFIN CONTAINING FLUORINE
    Publication number: 20180251416
    Abstract: The present invention relates to a process for preparation of olefins containing fluorine.
    Type: Application
    Filed: January 5, 2017
    Publication date: September 6, 2018
    Inventors: Jose GEORGE, Rajasekaran RAMANATHAN, Sunil RAJ, Anurag KATIYAR, Ambuj MISHRA, Rajdeep ANAND
  • Process for the production of difluoromethane
    Patent number: 6723887
    Abstract: A process for vapor phase fluorination of methylene chloride with anhydrous hydrogen fluoride (AHF) in the presence of a coprecipitated chromia-alumina impregnated with zinc salt as catalyst, removing HCl and heavier components by distillation, subjecting HFC-32 rich cut to a further step of fluorination in the presence of a fluorination catalyst.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: April 20, 2004
    Assignee: SFR Limited
    Inventors: Rajasekaran Ramanathan, Rajdeep Anand, Anurag Jain, Jampani Madhusudana Rao
  • Process for the production of difluoromethane
    Publication number: 20040010168
    Abstract: A process for vapor phase fluorination of methylene chloride with anhydrous hydrogen fluoride (AHF) in the presence of a coprecipitated chromia-alumina impregnated with zinc salt as catalyst, removing HCl and heavier components by distillation, subjecting HFC-32 rich cut to a further step of fluorination in the presence of a fluorination catalyst.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 15, 2004
    Inventors: Rajasekaran Ramanathan, Rajdeep Anand, Anurag Jain, Jampani Madhusudana Rao