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).

  • AZEOTROPIC COMPOSITIONS OF 1,1,3,3-TETRACHLORO-1-FLUOROPROPANE AND HYDROGEN FLUORIDE
    Publication number: 20130221273
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hang T. Pham, Hsueh Sung Tung, Ryan Hulse
  • Azeotropic compositions of 1,1,3,3-tetrachloro-1-fluoropropane and hydrogen fluoride
    Patent number: 8519200
    Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,1,3,3-tetrachloro-1-fluoropropane (HCFC-241fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: August 27, 2013
    Assignee: Honeywell International Inc.
    Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hang T. Pham, Hsueh Sung Tung, Ryan Hulse
  • 1,3,3,3-tetrafluoropropene process azeotropes with HF
    Patent number: 8518293
    Abstract: The present invention pertains to azeotropic and azeotrope-like compositions of the following three blends: 1. Trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)) and hydrogen fluoride (HF); 2. HFO-1234ze(E), 1,1,1,3,3-pentafluoropropane (HFC-245fa) and HF; and 3. HFO-1234ze(Z), HFC-245fa and HF. These azeotropic and azeotrope-like compositions are useful as intermediates in the production of HFO-1234ze(E).
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: August 27, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Hang T. Pham, Rajiv Ratna Singh, Daniel C Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung
  • Azeotrope-like compositions of difluoromethane and trifluoroiodomethane
    Patent number: 8492327
    Abstract: Provided are azeotrope-like compositions comprising difluoromethane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: July 23, 2013
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson
  • AZEOTROPES OF METHYL CHLORIDE WITH FLUOROCARBONS
    Publication number: 20130158218
    Abstract: Azeotropic or azeotrope-like compositions of the present technology include methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin. In some examples, the at least one hydrofluorocarbon or hydrofluoro-olefin can be selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,3,3,3-tetrafluoropropene. The azeotropic or azeotrope-like compositions can be used as solvents or diluents in polymerization processes, including slurry polymerization processes.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Raymond Hilton Thomas, Hang T. Pham, Rajiv Ratna Singh, Natalie Merrill
  • Heat transfer methods using heat transfer compositions containing trans-1,3,3,3-tetrafluoropropene
    Patent number: 8444874
    Abstract: Disclosed are methods of transferring heat to or from a fluid or body comprising causing heat to be transferred to or from a composition comprising at least trans-1,3,3,3-tetrafluorpropene.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: May 21, 2013
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Willson, Raymond H. Thomas, Mark W. Spatz, David A. Metcalf
  • Azeotrope-like composition of hexafluoropropane, hexafluoropropene and hydrogen fluoride
    Patent number: 8436218
    Abstract: The present invention relates to an azeotropic or azeotrope-like mixture consisting essentially of 1,1,1,2,3,3-hexafluoropropane, hexafluoropropene and hydrogen fluoride.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 7, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Hang T. Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Daniel C. Merkel, Konstantin A. Pokrovski
  • Azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and hydrogen fluoride (HF)
    Patent number: 8426658
    Abstract: Provided are azeotropic and azeotrope-like compositions of 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) 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 28, 2011
    Date of Patent: April 23, 2013
    Assignee: Honeywell International Inc.
    Inventors: Hang T. Pham, Rajiv R. Singh, Hsueh Sung Tung, Konstantin A. Pokrovski, Daniel C. Merkel
  • Azeotrope-like compositions of 1,1,1,2,3-pentachloropropane and hydrogen fluoride
    Patent number: 8410040
    Abstract: An azeotrope-like composition consisting essentially of 1,1,1,2,3-pentachloropropane and hydrogen fluoride is provided, as well as methods that involve such an azeotrope-like composition.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 2, 2013
    Assignee: Honeywell International Inc.
    Inventors: Hsueh S. Tung, Hang T. Pham, Rajiv R. Singh, Daniel C. Merkel
  • AZEOTROPE-LIKE COMPOSITIONS OF CIS-1,3,3,3-TETRAFLUOROPROPENE AND 1,1,1,3,3-PENTAFLUOROPROPANE
    Publication number: 20130075063
    Abstract: The present invention provides azeotrope-like compositions of cis-1,3,3,3-tetrafluoroprone (HFO-1234ze (Z)) with 1,1,1,3,3-pentafluoropropane (HFC-245fa) and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Inventors: Ryan Hulse, Hang T. Pham, Martin R. Paonessa, Rajiv Ratna Singh
  • Azeotrope-like compositions of (Z)-1-chloro-3,3,3-trifluoropropene and hydrogen fluoride
    Patent number: 8378158
    Abstract: Disclosed are azeotropic and azeotrope-like mixtures of (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(Z). The latter compound is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: February 19, 2013
    Assignee: Honeywell International Inc.
    Inventors: Ryan Hulse, Hang T. Pham
  • Azeotrope And Azeotrope-Like Compositions Useful For The Production Of Haloolefins
    Publication number: 20120215039
    Abstract: The present invention pertains to ternary azeotrope and azeotrope-like composition including 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), HF, and either 1,1,2,3-tetrachloropropene (TCP) or 1,1,1,2,2-pentafluoropropane (HFC-245cb). The present invention also relates to binary azeotropes of 2,3,3,3-tetrachloropropene and HF. Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: January 23, 2012
    Publication date: August 23, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RYAN HULSE, HANG T. PHAM, HSUEH SUNG TUNG, KONSTANTIN POKROVSKI, DANIEL C. MERKEL
  • Azeotrope-like compositions of 1,1,2,3-tetrachloropropene and hydrogen fluoride
    Patent number: 8247366
    Abstract: An azeotrope-like composition consisting essentially of 1,1,2,3-tetrachloropropene and hydrogen fluoride is provided, as well as methods that involve such an azeotrope-like composition.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 21, 2012
    Assignee: Honeywell International Inc.
    Inventors: Hsueh S. Tung, Hang T. Pham, Rajiv R. Singh, Daniel C. Merkel, Robert Johnson
  • AZEOTROPE-LIKE COMPOSITIONS OF DIFLUOROMETHANE AND TRIFLUOROIODOMETHANE
    Publication number: 20120204594
    Abstract: Provided are azeotrope-like compositions comprising difluoromethane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RAJIV R. SINGH, HANG T. PHAM, DAVID P. WILSON
  • Azeotrope-Like Compositions of Tetrafluoropropene and Hydrofluorocarbons
    Publication number: 20120187331
    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: Application
    Filed: March 26, 2012
    Publication date: July 26, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RAJIV R. SINGH, HANG T. PHAM, GARY M. KNOPECK
  • AZEOTROPE-LIKE COMPOSITIONS OF TETRAFLUOROPROPENE AND ALCOHOLS
    Publication number: 20120141385
    Abstract: A composition including an effective amount of trans-1,3,3,3-tetrafluoropropene component combined with an effective amount of an alcohol selected from the group of methanol, ethanol, propanol, isopropanol, tert-butanol, isobutanol, 2-ethyl hexanol and any combination thereof, where the composition has azeotropic properties.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 7, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Jim M. BOWMAN, David J. WILLIAMS, Rajiv R. SINGH, Hang T. PHAM, Justin L. BECKER
  • AZEOTROPE-LIKE COMPOSITIONS OF (Z)-1-CHLORO-3,3,3-TRIFLUOROPROPENE AND HYDROGEN FLUORIDE
    Publication number: 20120138841
    Abstract: Disclosed are azeotropic and azeotrope-like mixtures of (Z)-1-chloro-3,3,3-trifluoropropene (1233zd(Z)) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of 1233zd(Z). The latter compound is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent, aerosol propellant, heat transfer medium, dielectric, fire extinguishing composition and power cycle working fluid.
    Type: Application
    Filed: October 5, 2011
    Publication date: June 7, 2012
    Inventors: Ryan Hulse, Hang T. Pham
  • AZEOTROPE-LIKE COMPOSITIONS COMPRISING 1-CHLORO-3,3,3-TRIFLUOROPROPENE
    Publication number: 20120128964
    Abstract: An azeotrope-like mixture consisting essentially of a binary azeotrope-like mixture consisting essentially of trans-1-chloro-3,3,3-trifluoropropene (trans-HFO-1233zd) and a second component selected from the group consisting of 2,3,3,3-tetrafluoropropene (HFO-1234yf) and trans-1,3,3,3-tetrafluoropropene (trans-HFO-1234ze), and combinations of these and various uses thereof.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 24, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RYAN HULSE, RAJIV R. SINGH, HANG T. PHAM
  • AZEOTROPE-LIKE COMPOSITIONS COMPRISING 1-CHLORO-3,3,3-TRIFLUOROPROPENE
    Publication number: 20120122996
    Abstract: An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of a C1-C3 alcohol, a C5-C6 hydrocarbon, a halogenated hydrocarbon, methylal, methyl acetone, water, nitromethane, and combinations thereof.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 17, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RAJAT BASU, LESLIE BEMENT, KANE COOK, RYAN HULSE, GARY KNOPECK, HANG T. PHAM, RAJIV R. SINGH, DAVID J. WILLIAMS
  • Compositions Containing Difluoromethane and Fluorine Substituted Olefins
    Publication number: 20120097885
    Abstract: Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.
    Type: Application
    Filed: July 29, 2009
    Publication date: April 26, 2012
    Applicant: Honeywell International Inc.
    Inventors: Ryan Hulse, Rajiv Ratna Singh, Justin Becker, Robert Gerard Richard, Rajat S. Basu, Hang T. Pham, Ian Shankland