Patents by Inventor Hang T. Pham

Hang T. Pham 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).

  • Patent number: 10259760
    Abstract: Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: April 16, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Hang T. Pham, Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh S. Tung, Rajiv R. Singh
  • Publication number: 20180291248
    Abstract: Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents.
    Type: Application
    Filed: June 11, 2018
    Publication date: October 11, 2018
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson, Raymond H. Thomas
  • Patent number: 10029964
    Abstract: Azeotropic or azeotrope-like compositions of 3,3,3-trifluoropropyne and water, such as from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, and methods of producing essentially water free 3,3,3-trifluoropropyne.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 24, 2018
    Assignee: Honeywell International Inc.
    Inventors: Haluk Kopkalli, Hang T. Pham, Daniel C. Merkel
  • Patent number: 10011546
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloroprop-1-ene (HCO-1230za) and hydrogen fluoride. Such compositions are useful as feed stock in the production of HFC-245fa and HCFO-1233zd.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: July 3, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski, Haiyou Wang, Stephen A. Cottrell, Hang T. Pham
  • Publication number: 20180179128
    Abstract: Various compositions, including particularly aerosol compositions, containing fluorinated olefins, including particularly tetra- and penta-fluorpropenes, in a variety of applications are disclosed.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 28, 2018
    Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
  • Patent number: 9994750
    Abstract: Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: June 12, 2018
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson, Raymond H. Thomas
  • Patent number: 9988567
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 5, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Rajiv R. Singh, Hang T. Pham, Gary M. Knopeck
  • Patent number: 9950973
    Abstract: Azeotropic or azeotrope-like mixtures of 1,3-dichloro-3,3-difluoroprop-1-ene (HCFO-1232zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa),1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 24, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan J. Hulse, Hang T. Pham
  • Patent number: 9950974
    Abstract: Azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 24, 2018
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan J. Hulse, Hang T. Pham
  • Patent number: 9926244
    Abstract: The present disclosure provides separation processes that use azeotropic or azeotropic-like compositions of 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) that allow for improved recovery rates of 1-chloro-3,3,3-trifluoropropene during or after manufacturing processes. Such recovery or separation processes can utilize the unique properties of azeotropic or azeotropic-like composition with various combinations of separation techniques (e.g., distillation and decanting) that yield highly pure compositions of 1-chloro-3,3,3-trifluoropropene and simultaneously offer high yields of 1-chloro-3,3,3-trifluoropropene. Such highly pure compositions of 1-chloro-3,3,3-trifluoropropene may find useful applications in polymer technology as monomers or comonomers.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 27, 2018
    Assignee: Honeywell International Inc.
    Inventors: Yuon Chiu, Stephen A. Cottrell, Hang T. Pham, Gustavo Cerri
  • Publication number: 20180057433
    Abstract: Azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa),1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan J. Hulse, Hang T. Pham
  • Publication number: 20180057430
    Abstract: Azeotropic or azeotrope-like mixtures of 1,3-dichloro-3,3-difluoroprop-1-ene (HCFO-1232zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung, Haiyou Wang, Ryan J. Hulse, Hang T. Pham
  • Publication number: 20180057434
    Abstract: Azeotropic or azeotrope-like compositions of 3,3,3-trifluoropropyne and water, such as from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, and methods of producing essentially water free 3,3,3-trifluoropropyne.
    Type: Application
    Filed: August 30, 2016
    Publication date: March 1, 2018
    Inventors: Haluk Kopkalli, Hang T. Pham, Daniel C. Merkel
  • Patent number: 9884946
    Abstract: Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO2) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCFzR3-z (I), where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene and/or 1,1,1,3-tetrafluoropropene.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: February 6, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
  • Publication number: 20180022672
    Abstract: Various compositons, including particularly aerosol compositions, containing fluorinated olefins, including particularly tetra- and penta-fluorpropenes, in a variety of applications are disclosed.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 25, 2018
    Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
  • Publication number: 20180016212
    Abstract: Various compositions, including particularly aerosol compositions, containing fluorinated olefins, including particularly tetra- and penta-fluoropropenes, in a variety of applications are disclosed.
    Type: Application
    Filed: August 11, 2017
    Publication date: January 18, 2018
    Inventors: Rajiv R. Singh, Hang T. Pham, Gary Knopeck
  • Publication number: 20170335081
    Abstract: An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of pentane, hexane, methanol, and trans-1,2-dichloroethene.
    Type: Application
    Filed: August 7, 2017
    Publication date: November 23, 2017
    Inventors: Rajat S. Basu, Kane D. Cook, Leslie Bement, Gary M. Knopeck, Rajiv R. Singh, Ryan Hulse, Hang T. Pham
  • Publication number: 20170306070
    Abstract: A process for the preparation of a fluoroolefin polymer from an azeotropic mixture of monomers having a constant composition, the process including the step of: contacting in a reaction zone: (i) an initiator; and (ii) an azeotropic mixture of monomers including at least one fluoroolefin and, optionally, at least one ethylenically unsaturated comonomer capable of copolymerizing therewith; wherein the contacting is carried out at a temperature, pressure and length of time sufficient to produce the fluoroolefin polymer.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Inventors: George J. Samuels, Gregory J. Shafer, Hang T. Pham
  • Publication number: 20170233623
    Abstract: Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents.
    Type: Application
    Filed: November 11, 2016
    Publication date: August 17, 2017
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson, Raymond H. Thomas
  • Patent number: RE46928
    Abstract: Provided are azeotropic and azeotrope-like compositions of 1,2,3,3,3-pentafluoropropene (HFO-1225ye) and water. Such azeotropic and azeotrope-like compositions are useful in isolating 1,2,3,3,3-pentafluoropropene from impurities during production. Azeotropes of the instant invention are similarly useful in final compositions or manufacturing final compositions, such as blowing agent, propellants, refrigerants, diluents for gaseous sterilization and the like.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: July 3, 2018
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Ryan Hulse, Haluk Kopkalli, Hang T. Pham