Patents by Inventor Rajiv Ratna Singh

Rajiv Ratna Singh 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).

  • SOLVENT COMPOSITIONS CONTAINING CHLOROFLOROOLEFINS OR FLUOROOLEFINS
    Publication number: 20090318323
    Abstract: Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in solvent cleaning applications.
    Type: Application
    Filed: February 9, 2009
    Publication date: December 24, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Robert C. Johnson, Hsueh Sung Tung, Rajiv Ratna Singh, Ian Shankland
  • Compositions and Methods Containing Fluorine Substituted Olefins
    Publication number: 20090305876
    Abstract: Various uses of fluorinated alkenes, particularly HFO-1234 and HFCO-1233zd in a variety of applications, including refrigeration, foams, blowing agents, aerosols, propellants, solvent compositions, fire extinguishing and suppressing agents, extraction agents and catalyst deposition are disclosed.
    Type: Application
    Filed: January 9, 2009
    Publication date: December 10, 2009
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Ratna Singh, Ian Shankland, Raymond H. Thomas, Gary Knopeck, David J. Williams
  • SESQUITERPENE STABILIZED COMPOSITIONS
    Publication number: 20090283712
    Abstract: Provided is a composition comprising (a) at least one halogenated compound selected from the group consisting of C3-C5 hydrofluoroolefin, CF3I, and combinations thereof, and (b) an effective stabilizing amount of a sesquiterpene selected from the group consisting of farnesol, farnesene, and mixtures thereof.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 19, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Gary Zyhowski, Rajiv Ratna Singh, Raymond H. Thomas, Mark W. Spatz, Roy P. Robinson, George J. Samuels, Gregory J. Shafer, Michael Van Der Puy, David P. Wilson, John L. Welch, Ronald P. Vogl, Samuel F. Yana Motta
  • ABSORPTION REFRIGERATION CYCLES USING A LGWP REFRIGERANT
    Publication number: 20090272134
    Abstract: An absorptive refrigeration method that employs a refrigerant comprising one or more hydrofluoroolefin or hydrochlorofluoroolefin refrigerants, and an oil selected from the group consisting of a polyalkyene glycol oil, a poly alpha olefin oil, a mineral oil and a polyolester oil.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 5, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Ryan J. Hulse, Rajiv Ratna Singh
  • CARRIER SOLVENT FOR FINGERPRINT FORMULATIONS
    Publication number: 20090269478
    Abstract: A method and composition for transforming a latent physiological biometric into a visible physiological biometric are provided, the method comprising: providing a latent biometric disposed on a surface of an article, wherein said biometric comprises at least one eccrine-derived compound; contacting said latent biometric with a developing solution, wherein said developing solution comprises at least one imaging reagent selected from ninhydrin and 1,8-diazafluoren-9-one and a carrier solvent comprising at least one C3-C4 hydrofluorocarbon; and reacting said imaging reagent with said eccrine-derived compound to produce a visible physiological biometric.
    Type: Application
    Filed: April 11, 2009
    Publication date: October 29, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: David Nalewajek, Cheryl L. Cantlon, Andrew J. Poss, Rajiv Ratna Singh, Ian Shankland
  • Hydrofluorocarbon blown foam and method for preparation thereof
    Patent number: 7288211
    Abstract: The invention relates to the addition of ?-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: October 30, 2007
    Assignee: Honeywell International Inc.
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
  • Azeotrope-like compositions of pentafluoropropane and water
    Patent number: 7214294
    Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: May 8, 2007
    Assignee: Honeywell International Inc.
    Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
  • Azeotrope-like composition of 1-chloro-1,3,3,3-tetrafluoropropane and hydrogen fluoride
    Patent number: 6903063
    Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: June 7, 2005
    Assignee: Honeywell International Inc.
    Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Milton Cook
  • Azeotrope-like compositions of pentafluoropropane and water
    Patent number: 6843934
    Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: January 18, 2005
    Assignee: Honeywell International Inc.
    Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
  • AZEOTROPE-LIKE COMPOSITIONS OF PENTAFLUOROPROPANE AND WATER
    Publication number: 20040229961
    Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
    Type: Application
    Filed: November 14, 2003
    Publication date: November 18, 2004
    Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
  • Azeotrope-like compositions of pentafluoropropane and water
    Patent number: 6689822
    Abstract: This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: February 10, 2004
    Assignee: AlliedSignal Inc.
    Inventors: Leslie Bruce Bement, Mary Charlotte Bogdan, Clayton Herbert Carson, Peter Brian Logsdon, Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Ronald Riegal, David John Williams, Kevin Donald Uhrich
  • Hydrofluorocarbon blown foam and method for preparation thereof
    Publication number: 20030158276
    Abstract: The invention relates to the addition of &agr;-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Application
    Filed: January 24, 2003
    Publication date: August 21, 2003
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
  • Cleaning processes using hydrofluorocarbon and/or hydrochlorofluorocarbon compounds
    Publication number: 20030127115
    Abstract: Disclosed are methods of cleaning articles of manufacture using hydrofluorocarbon and hydrochlorofluorocarbon fluids. The methods comprise generally the steps of (a) providing a hydrofluorocarbon and/or hydrochlorofluorocarbon fluid in liquid or supercritical state; (b) contacting an article of manufacture with said fluid; and (c) removing substantially all of said fluid from said article of manufacture.
    Type: Application
    Filed: February 25, 2003
    Publication date: July 10, 2003
    Inventors: Raymond Hilton Percival Thomas, Rajiv Ratna Singh, Kane David Cook, Gary Michael Knopeck, Robert Scott Wedinger
  • Cleaning processes using hydrofluorocarbon and/or hydrochlorofluorocarbon compounds
    Patent number: 6589355
    Abstract: Disclosed are methods of cleaning articles of manufacture using hydrofluorocarbon and hydrochlorofluorocarbon fluids. The methods comprise generally the steps of (a) providing a hydrofluorocarbon and/or hydrochlorofluorocarbon fluid in liquid or supercritical state; (b) contacting an article of manufacture with said fluid; and (c) removing substantially all of said fluid from said article of manufacture.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: July 8, 2003
    Assignee: AlliedSignal Inc.
    Inventors: Raymond Hilton Percival Thomas, Rajiv Ratna Singh, Kane David Cook, Gary Michael Knopeck, Robert Scott Wedinger
  • Hydrofluorocarbon refrigerants for use in centrifugal chillers
    Patent number: 6576153
    Abstract: This invention relates to hydrofluorocarbons useful in refrigeration and heat pump applications. The invention provides hydrofluorocarbons selected from the group of 1,1,2,3,3-pentafluoropropane, 1,1,1,3,3-pentafluoropropane, 1,1,1,2,3-pentafluoropropane, and mixtures thereof that are environmentally suitable replacements for chlorofluorocarbons in refrigeration applications such as multi-stage centrifugal chillers.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 10, 2003
    Assignee: AlliedSignal Inc.
    Inventors: H. Michael Hughes, Mark W. Spatz, Rajiv Ratna Singh
  • Azeotrope-like composition of 1-chloro-1,3,3,3-tetrafluoropropane and hydrogen fluoride
    Publication number: 20030096724
    Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and hydrogen fluoride, which are useful as intermediates in the production of HCFC-244fa.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 22, 2003
    Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung, Milton Cook
  • Hydrofluorocarbon blown foam and method for preparation thereof
    Patent number: 6545063
    Abstract: The invention relates to the addition of &agr;-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisocyanurate closed-cell foams prepared with a blowing agent comprising a hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, and mixtures thereof.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: April 8, 2003
    Assignee: AlliedSignal Inc.
    Inventors: Mary Charlotte Bogdan, Leslie Bruce Bement, Barbara Ruth Decaire, Dennis Paul Konopa, Harold John Kieta, Rajiv Ratna Singh
  • Azeotrope-like composition of 1,2,2-trichloro-1,3,3,3-tetrafluoropropane and hydrogen fluoride
    Patent number: 6534467
    Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1,2,2-trichloro-1,3,3,3-tetrafluoropropane (commonly known as HCFC-224aa, and with the IUPAC name of 2,2,3-trichloro-1,1,1,3-tetrafluoropropane;registry number 139754-75-9) and hydrogen fluoride (hydrofluoric acid), which are useful as intermediates in the production of 1,1,3,3,3-pentafluoropropane (HFC-245-fa) and 1,1,1,2,2,3,3-heptafluoropropane (HFC-227ca).
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 18, 2003
    Assignee: Honeywell International Inc.
    Inventors: Hang Thanh Pham, Rajiv Ratna Singh, Hsueh Sung Tung
  • Hydrofluorocarbon refrigerant compositions soluble in lubricating oil
    Patent number: 6526764
    Abstract: Hydrofluorocarbon refrigerants are not soluble in hydrocarbon oil. Retrofitting refrigeration equipment with hydrofluorocarbons generally entails the use of expensive polyol ester (POE) lubricants. The invention provides hydrofluorocarbon refrigerant compositions that are soluble in hydrocarbon oil thus allowing for a simpler and less expensive retrofit option to the refrigerant user.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: March 4, 2003
    Assignee: Honeywell International Inc.
    Inventors: Rajiv Ratna Singh, David Paul Wilson, Raymond Hilton Percival Thomas, Robert Gerard Richard
  • Azeotrope-like composition of 1,1,1,3,3-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane
    Patent number: 6524496
    Abstract: Provided are azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentafluoropropane (HFC-245fa) and 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa) that are useful as intermediates in the production of HFC-245fa. A process for separating HFC-245fa and HCFC-235fa is also provided. HFC-245fa is useful as a nontoxic, zero ozone depleting fluorocarbon useful as solvents, blowing agents, refrigerants, cleaning agents, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing compositions and power cycle working fluids.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: February 25, 2003
    Assignee: Honeywell International Inc.
    Inventors: Kane David Cook, Rajiv Ratna Singh, Hsueh Sung Tung