Patents by Inventor John L. Welch

John L. Welch 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).

  • Process for reducing 3,3,3-trifluoropropyne in 2,3,3,3-tetrafluoropropene
    Patent number: 10913697
    Abstract: The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions effective to reduce the concentration of the fluorinated alkyne impurity, including in some practices reducing the concentration by at least about 50%.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 9, 2021
    Assignee: Honeywell International Inc.
    Inventors: Haiyou Wang, Hsueh Sung Tung, Willie Josue Perez, Yian Zhai, Ralph John Borowski, Fang Huang Tu, Lucas Peter Labuda, John L. Welch
  • PROCESS FOR REDUCING 3,3,3-TRIFLUOROPROPYNE IN 2,3,3,3-TETRAFLUOROPROPENE
    Publication number: 20200055804
    Abstract: The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions effective to reduce the concentration of the fluorinated alkyne impurity, including in some practices reducing the concentration by at least about 50%.
    Type: Application
    Filed: November 2, 2017
    Publication date: February 20, 2020
    Inventors: Haiyou Wang, Hsueh Sung Tung, Willie Josue Perez, Yian Zhai, Ralph John Borowski, Fang Huang Tu, Lucas Peter Labuda, John L. Welch
  • USE OF LOW GWP REFRIGERANTS COMPRISING CF3I WITH STABLE LUBRICANTS
    Publication number: 20180171195
    Abstract: The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
    Type: Application
    Filed: February 14, 2018
    Publication date: June 21, 2018
    Inventors: Raymond H. Thomas, Rajiv R. Singh, George J. Samuels, Ian Shankland, David P. Wilson, Roy P. Robinson, Michael Van Der Puy, John L. Welch, Gregory J. Shafer, Mark W. Spatz, Ryan Hulse
  • Use of low GWP refrigerants comprising CFI with stable lubricants
    Patent number: 9920230
    Abstract: The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: March 20, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Raymond H. Thomas, Rajiv R. Singh, George J. Samuels, Ian Shankland, David P. Wilson, Roy P. Robinson, Michael Van Der Puy, John L. Welch, Gregory J. Shafer, Mark W. Spatz, Ryan Hulse
  • Sesquiterpene stabilized compositions
    Patent number: 8133407
    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: Grant
    Filed: May 15, 2009
    Date of Patent: March 13, 2012
    Assignee: 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
  • USE OF LOW GWP REFRIGERANTS COMPRISING CF3I WITH STABLE LUBRICANTS
    Publication number: 20110126558
    Abstract: The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
    Type: Application
    Filed: February 8, 2011
    Publication date: June 2, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: RAYMOND H. THOMAS, RAJIV R. SINGH, GEORGE J. SAMUELS, IAN SHANKLAND, DAVID P. WILSON, ROY P. ROBINSON, MICHAEL VAN DER PUY, JOHN L. WELCH, GREGORY J. SHAFER, MARK W. SPATZ, RYAN HULSE
  • 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
  • FLUOROCARBON STABILIZERS
    Publication number: 20080157023
    Abstract: The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, a lubricant and a metal stabilizer.
    Type: Application
    Filed: November 8, 2007
    Publication date: July 3, 2008
    Inventors: George J. Samuels, Samuel F. Yana Motta, Gregory J. Shafer, Rajiv R. Singh, Mark W. Spatz, Raymond H. Thomas, Michael Van Der Puy, John L. Welch, David P. Wilson, Gary Zyhowski
  • IODINE AND IODIDE REMOVAL METHOD
    Publication number: 20080116417
    Abstract: A method for removing iodine and iodide ions from heat transfer compositions which contain a hydrofluoroalkene, an iodocarbon, and iodine and iodide ions. Iodine and iodide ions from such heat transfer compositions by contacting the composition with a molecular sieve, ion exchange resin, clay or alumina, metal impregnated with a metal which is capable of reacting with iodine and iodide ions.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 22, 2008
    Inventors: George J. Samuels, Samuel F. Yana Motta, Gregory J. Shafer, Rajiv R. Singh, Mark W. Spatz, Raymond H. Thomas, Michael Van Der Puy, John L. Welch, Gary Zyhowski, David P. Wilson
  • IODINE REMOVAL WITH ACTIVATED CARBON
    Publication number: 20080110833
    Abstract: A method for removing iodine from heat transfer compositions which contain a hydrofluoroalkene, an iodocarbon, and iodine. Iodine from such heat transfer compositions by contacting the composition with activated carbon.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 15, 2008
    Inventors: George J. Samuels, Samuel F. Yana Motta, Gregory J. Shafer, Rajiv R. Singh, Mark W. Spatz, Raymond H. Thomas, Michael Van Der Puy, John L. Welch, Gary Zyhowski, David P. Wilson
  • USE OF LOW GWP REFRIGERANTS COMPRISING CF3I WITH STABLE LUBRICANTS
    Publication number: 20080111100
    Abstract: The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, and at least one lubricant having hydrogen atoms and carbon atoms, wherein no more than 17% of the total number of hydrogen atoms which are attached to a carbon atom are tertiary hydrogen atoms.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 15, 2008
    Inventors: RAYMOND H. THOMAS, Rajiv R. Singh, George J. Samuels, Ian Shankland, David P. Wilson, Roy P. Robinson, Michael Van Der Puy, John L. Welch, Gregory J. Shafer, Mark W. Spatz, Ryan Hulse
  • HEAT TRANSFER COMPOSITIONS WITH A HYDROFLUOROALKENE, AN IODOCARBON AND ADDITIVES
    Publication number: 20080111099
    Abstract: The invention pertains to heat transfer compositions, particularly to automobile refrigerants comprising a hydrofluoroalkene, an iodocarbon, a polyol ester and at least one compound comprising trifluoromethane, methyl iodide, heptafluorobutane or propene.
    Type: Application
    Filed: November 8, 2007
    Publication date: May 15, 2008
    Inventors: Rajiv R. Singh, Raymond H. Thomas, George J. Samuels, David P. Wilson, Michael Van Der Puy, John L. Welch, Gregory J. Shafer, Mark W. Spatz
  • Method for regulating water concentration in a process stream
    Patent number: 6858198
    Abstract: Provided is a method for regulating the concentration of water in the acid feed stream in a process for the production of HF by the reaction with a fluorine containing material, the method comprising: (a) providing an acid feed stream comprising bound water and free water; (b) estimating the concentration of bound water and free water in the acid feed stream by providing a probe in said feed stream; and (c) adjusting the concentration of free water in said process stream based on said estimating step.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: February 22, 2005
    Assignee: Honeywell International
    Inventors: Troy W. Francisco, Charles L. Redmon, Kenneth E. Creasy, John L. Welch, William A. Pepe
  • Method for regulating water concentration in a process stream
    Publication number: 20020155057
    Abstract: Provided is a method for regulating the concentration of water in the acid feed stream in a process for the production of HF by the reaction with a fluorine containing material, the method comprising:
    Type: Application
    Filed: January 18, 2002
    Publication date: October 24, 2002
    Inventors: Troy W. Francisco, Charles L. Redmon, Kenneth E. Creasy, John L. Welch, William A. Pepe