Patents by Inventor Ambuj Kumar MISHRA

Ambuj Kumar MISHRA 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).

  • Azeotrope or azeotrope like compositions comprising 1234yf
    Patent number: 11629279
    Abstract: The present invention provides azeotropic or azeotrope-like compositions comprising 1234yf and at least one component selected from a group comprising of R-134, and R-134a. The compositions of the present invention are useful as refrigerants, heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 18, 2023
    Assignee: SRF LIMITED
    Inventors: Jose George, Sunil Raj, Ambuj Kumar Mishra, Anurag Katiyar, Anurag Jain, Manoj Kumar Mishra, Aditya Sharma
  • Process for purification of olefin feed comprising 1234YF
    Patent number: 11225447
    Abstract: The present invention relates to a process for purifying olefin feed comprising R-5 1234yf, R-40, R-134a, R-134, R-1225zc, and OFCB, comprising the step of separating different ternary and binary azeotrope compositions comprising 1234yf. The olefin feed is obtained from the pyrolysis of tetrafluoroethylene/chlorodifluoromethane with chloromethane/methane, optionally in presence of initiator.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: January 18, 2022
    Inventors: Jose George, Sunil Raj, Ambuj Kumar Mishra, Anurag Katiyar, Anurag Jain, Sudip Maity
  • AZEOTROPE OR AZEOTROPE LIKE COMPOSITIONS COMPRISING 1234YF
    Publication number: 20210261842
    Abstract: The present invention provides azeotropic or azeotrope-like compositions comprising 1234yf and at least one component selected from a group comprising of R-134, and R-134a. The compositions of the present invention are useful as refrigerants, heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 26, 2021
    Inventors: Jose GEORGE, Sunil RAJ, Ambuj Kumar MISHRA, Anurag KATIYAR, Anurag JAIN, Manoj Kumar MISHRA, Aditya SHARMA
  • PROCESS FOR PURIFICATION OF OLEFIN FEED COMPRISING 1234YF
    Publication number: 20210214293
    Abstract: The present invention relates to a process for purifying olefin feed comprising R-5 1234yf, R-40, R-134a, R-134, R-1225zc, and OFCB, comprising the step of separating different ternary and binary azeotrope compositions comprising 1234yf. The olefin feed is obtained from the pyrolysis of tetrafluoroethylene/chlorodifluoromethane with chloromethane/methane, optionally in presence of initiator.
    Type: Application
    Filed: May 13, 2019
    Publication date: July 15, 2021
    Inventors: Jose GEORGE, Sunil RAJ, Ambuj Kumar MISHRA, Anurag KATIYAR, Anurag JAIN, Sudip MAITY