Patents by Inventor Velliyur Nott Mallikarjuna Rao

Velliyur Nott Mallikarjuna Rao 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).

  • Publication number: 20190322917
    Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1.
    Type: Application
    Filed: July 1, 2019
    Publication date: October 24, 2019
    Applicant: THE CHEMOURS COMPANY FC, LLC
    Inventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert
  • Patent number: 10392545
    Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: August 27, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Allen Capron Sievert
  • Publication number: 20190256755
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Applicant: THE CHEMOURS COMPANY FC, LLC
    Inventors: BARBARA HAVILAND MINOR, Velliyur Nott Mallikarjuna Rao
  • Patent number: 10316232
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 11, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20180273818
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: May 31, 2018
    Publication date: September 27, 2018
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20180100092
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: December 12, 2017
    Publication date: April 12, 2018
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20180100093
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: December 12, 2017
    Publication date: April 12, 2018
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Patent number: 9879165
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: January 30, 2018
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Patent number: 9670393
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: June 6, 2017
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20170073559
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Inventors: BARBARA HAVILAND MINOR, VELLIYUR NOTT MALLIKARJUNA RAO
  • Publication number: 20160137898
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: January 25, 2016
    Publication date: May 19, 2016
    Inventors: BARBARA HAVILAND MINOR, VELLIYUR NOTT MALLIKARJUNA RAO
  • Publication number: 20150218066
    Abstract: A process is disclosed for making CF3CH2CHF2, CF3CH?CHF and/or CF3CH?CHCl. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHClCH2X, halopropenes of the formula CX3CCl?CH2 and halopropenes of the formula CX2?CClCH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCl, CF3CH2CHF2, CF3CH?CHF and CF3CH?CHCl; and recovering the CF3CH2CHF2, CF3CH?CHF and/or CF3CH?CHCl from the product mixture. Also disclosed is a process for making CF3CF2CH3 and/or CF3CF?CH2.
    Type: Application
    Filed: April 11, 2014
    Publication date: August 6, 2015
    Applicant: THE CHEMOURS COMPANY, FC, LLC
    Inventors: VELLIYUR NOTT MALLIKARJUNA RAO, ALLEN CAPRON SIEVERT
  • Publication number: 20150083957
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20140283537
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Application
    Filed: July 30, 2013
    Publication date: September 25, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: BARBARA HAVILAND MINOR, VELLIYUR NOTT MALLIKARJUNA RAO
  • Patent number: 8815114
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be at least one phenol or a mixture of at least one phenol with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: August 26, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Barbara Haviland Minor, Thomas Joseph Leck, Nandini C Mouli
  • Patent number: 8696926
    Abstract: A process is disclosed for making CF3CH2CHF2, CF3CH?CHF and/or CF3CH?CHCl. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHClCH2X, halopropenes of the formula CX3CCl?CH2 and halopropenes of the formula CX2?CClCH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCl, CF3CH2CHF2, CF3CH?CHF and CF3CH?CHCl; and recovering the CF3CH2CHF2, CF3CH?CHF and/or CF3CH?CHCl from the product mixture. Also disclosed is a process for making CF3CF2CH3 and/or CF3CF?CH2. In each of the processes the molar ratio of HF to total amount of starting material fed to the reaction zone is at least stoichiometric. Also disclosed is an azeotropic composition comprising CF3CCl?CH2, and HF. Also disclosed is an azeotropic composition comprising CF3CF2CH3, and HF.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 15, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
  • Patent number: 8663494
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be a terpene, terpenoid or fullerene; or a mixture of a terpene, terpenoid or fullerene with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: March 4, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Ekaterina N. Swearingen, Andrew Edward Feiring
  • Publication number: 20140034870
    Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 6, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Velliyur Nott Mallikarjuna RAO, Mario Joseph NAPPA, Allen Capron SIEVERT
  • Publication number: 20130283834
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be at least one phenol or a mixture of at least one phenol with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventors: VELLIYUR NOTT MALLIKARJUNA RAO, Mario Joseph Nappa, Barbara Haviland Minor, Thomas Joseph Leck, Nandini C. Mouli
  • Patent number: 8535556
    Abstract: The present invention relates to compositions comprising iodotrifluoromethane and an effective amount of at least one stabilizer selected from the group consisting of hindered phenols, thiophosphates, butylated triphenylphosphorothionates, organo phosphates, phosphites, aryl alkyl ethers, terpenes, terpenoids, epoxides, fluorinated epoxides, oxetanes, ascorbic acid, thiols, lactones, thioethers, amines, nitromethane, alkylsilanes, benzophenone derivatives, aryl sulfides, divinyl terephalic acid, diphenyl terephalic acid, ionic liquids, and mixtures thereof. These stabilized iodotrifluoromethane compositions may be useful as working fluids in multiple applications including cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: September 17, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Nandini C. Mouli, Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Andrew Edward Feiring, Viacheslav A. Petrov, Allen Capron Sievert, Mario Joseph Nappa, Barbara Haviland Minor, Ekaterina N. Swearingen, Schmitz Corneille, Deepak Perti