Patents by Inventor Rajiv Singh

Rajiv 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).

  • Publication number: 20060019857
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: April 18, 2005
    Publication date: January 26, 2006
    Applicant: Honeywell International Inc.
    Inventors: David Wilson, Hang Pham, Rajiv Singh
  • Publication number: 20060010872
    Abstract: A process for recovering waste heat which comprises: (a) passing a liquid phase working fluid through a heat exchanger in communication with a process which produces the waste heat; (b) removing a vapor phase working fluid from the heat exchanger; (c) passing the vapor phase working fluid to an expander, wherein the waste heat is converted into mechanical energy; and (d) passing the vapor phase working fluid from the expander to a condenser, wherein the vapor phase working fluid is condensed to the liquid phase working fluid. The preferred working fluid is an organic Rankine cycle system working fluid comprising compounds having the following general structure: where x, y, z, and m are each selected from the group consisting of: fluorine, hydrogen, Rf, and R, wherein R and Rf are each an alkyl, aryl, or alkylaryl of 1 to 6 carbon atoms, and wherein Rf is partially or fully fluorinated.
    Type: Application
    Filed: July 16, 2004
    Publication date: January 19, 2006
    Inventors: Rajiv Singh, David Wilson, Gary Zyhowski, Ryan Hulse
  • Publication number: 20050277565
    Abstract: Provided are azeotrope-like compositions comprising pentafluoropropane, methanol, and dichloroethylene, and uses thereof, including use in aerosols, refrigerant compositions, refrigeration systems, and blowing agent compositions.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 15, 2005
    Inventors: Guillermo Hitters, Gary Knopeck, Ian Shankland, Rajiv Singh
  • Publication number: 20050247905
    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: April 29, 2005
    Publication date: November 10, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham, Gary Knopeck, Louis Herena, Jeremy Diringer
  • Publication number: 20050241805
    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.
    Type: Application
    Filed: April 29, 2004
    Publication date: November 3, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham, Ian Shankland
  • Publication number: 20050245421
    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: April 29, 2004
    Publication date: November 3, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham, Gary Knopeck, Louis Herena, Jeremy Diringer
  • Publication number: 20050233923
    Abstract: Provided are azeotrope-like compositions comprising difluoroethane and trifluoroiodomethane, azeotrope-like compositions comprising difluoroethane, tetrafluoropropene and trifluoroiodomethane, and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, David Wilson, Hang Pham
  • Publication number: 20050233932
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and pentafluoropropene and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham, David Wilson, Raymond Thomas, David Nalewajek
  • Publication number: 20050233934
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham, David Wilson, Raymond Thomas
  • Publication number: 20050233931
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham
  • Publication number: 20050233933
    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 16, 2004
    Publication date: October 20, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Hang Pham, David Wilson
  • Publication number: 20050205832
    Abstract: The present invention provides compositions comprising pentafluoropropane, a second component selected from the group consisting of decafluoropropane, perfluorobutyl methyl ether and combinations of these, and a third component selected from the group consisting of methanol, 1,2-trans-dichloroethylene and combinations of these. The present invention further provides for refrigerants, blowing agents, foam compositions, polyol premixes, closed-cell foams, sprayable compositions, and the like, comprising the present compositions.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 22, 2005
    Applicant: Honeywell International Inc.
    Inventors: Guillermo Hitters, Kane Cook, Gary Knopeck, Hang Pham, Ian Shankland, Rajiv Singh
  • Publication number: 20050196676
    Abstract: Polymeric ionic gels of ionic liquids having melting points below about 100° C. that are formed by the reaction of a heterocyclic amine with about 2.8 and about 3.2 moles of anhydrous hydrogen fluoride per mole of amine nitrogen. Electrochemical devices having non-aqueous electrolytes containing the ionic liquids and polymeric ionic gels are also disclosed.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Rajiv Singh, Martin Paonessa, Ian Shankland
  • Publication number: 20050196671
    Abstract: Ionic liquids having melting points below about 100 C formed by reaction of a heterocyclic amine with about 2.8 and about 3.2 moles of anhydrous hydrogen fluoride per mole of amine nitrogen. Electrochemical devices having non-aqueous electrolytes containing the ionic liquids are also disclosed, as well as silicon oxide etching compositions containing the ionic liquids and etching methods in which silicon oxides are selectively removed by the etching compositions in the presence of aluminum.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Martin Paonessa, Rajiv Singh, Valentine Zuba, George Shia, John McFarland
  • Publication number: 20050188697
    Abstract: Polyfluorinated ethers and polyfluorinated ketones and mixtures thereof, preferably polyfluorinated ethers such as methyl(trifluoroethyl)ether (CH3OCH2CF3), methyl(heptafluoropropyl)ether (CH3OCF2CHFCF3), di(trifluoroethyl)ether (CF3CH2OCH2CF3), methyl(hexafluoropropyl)ether (CH3OCF2CF2CHF2), methyl(pentafluoropropyl)ether (CH3OCH2CF2CF3), methyl (perfluorobutyl)ether (C4F9OCH3), ethyl(perfluorobutyl)ether (C4F9OC2H5), and polyfluorinated ketones such as methyl(perfluoromethyl)ketone (CF3COCH3), perfluoromethyl(trifluoroethyl)ketone (CF3CH2COCF3), methyl(perfluooroethyl)ketone (C2F5COCH3), methyl(perfluoropropyl)ketone (F3CF2CF2COCH3), perfluoroethyl(perfluoropropyl)ketone (CF3CF2CF2COC2F5), methyl(octafluorobutyl)ketone (C2F5CFHCF2COCH3), di(perfluoropropyl)ketone (CF3CF2CF2COCF2CF2CF3), and mixtures thereof meet the requirement for not adversely affect atmospheric chemistry and would be a negligible contributor to ozone depletion and to green-house global warming in comparison to the fully halogenated hydro
    Type: Application
    Filed: March 1, 2004
    Publication date: September 1, 2005
    Inventors: Gary Zyhowski, Rajiv Singh
  • Publication number: 20050096246
    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 1,2,-dichloro-3,3,3-trifluoropropene (HFO-1223xd) having properties highly beneficial in solvent cleaning applications.
    Type: Application
    Filed: November 4, 2003
    Publication date: May 5, 2005
    Inventors: Robert Johnson, HsuehSung Tung, Rajiv Singh
  • Publication number: 20050096247
    Abstract: Provided are azeotrope-like compositions comprising iodine heptafluoride and hydrogen fluoride and uses thereof, including methods for separating iodine heptafluoride or hydrogen fluoride from a mixture comprising iodine heptafluoride and hydrogen fluoride by removing an azeotrope-like composition of the present invention therefrom.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 5, 2005
    Inventors: Matthew Luly, George Cook, Rajiv Singh
  • Publication number: 20050090698
    Abstract: Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF3CY?CXNHP, wherein X and Y are independently hydrogen or a halogen selected from fluorine, chlorine, bromine and iodine; and N and P are independently integers equal to 0, 1 or 2, provided that (N+P)=2.
    Type: Application
    Filed: October 27, 2003
    Publication date: April 28, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Daniel Merkel, Rajiv Singh, Hsueh Tung
  • Publication number: 20050077501
    Abstract: The invention relates to azeotropic and azeotrope-like mixtures of 1,1,1-trifluoroethane (HFC-143a) and hydrogen fluoride and a process for separating the azeotrope-like mixtures. The compositions of the invention are useful as an intermediate in the production of HFC-143a. The latter is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent and aerosol propellant.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Applicant: Honeywell International, Inc.
    Inventors: Hang Pham, Rajiv Singh
  • Publication number: 20050070746
    Abstract: The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa). Alternatively, HFC-1225zc can also be made from the dehydrofluorination of 1,1,1,3,3,3-hexafluoropropane (HFC-236fa). HFC-1225zc) is a compound that has the potential to be used as a low Global Warming Potential refrigerant, blowing agent, aerosol propellant, or solvent.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 31, 2005
    Inventors: Hsueh Tung, Daniel Merkel, Rajiv Singh