Patents by Inventor Richard M. Crooker

Richard M. Crooker 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: 9303900
    Abstract: The invention relates to heat transfer agents and heat transfer compositions containing hydrocarbon lubricating oils and halogenated alkene heat transfer fluid that promote oil flow and provide for improved oil return. The heat transfer compositions are useful in various heat transfer systems such as refrigeration, cooling, air conditioning, chiller operations.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 5, 2016
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Philippe Bonnet, Benjamin Bin Chen, Maher Y. Elsheikh, Richard M. Crooker
  • Publication number: 20130246288
    Abstract: The invention relates to heat transfer agents and heat transfer compositions containing hydrocarbon lubricating oils and halogenated alkene heat transfer fluid that promote oil flow and provide for improved oil return. The heat transfer compositions are useful in various heat transfer systems such as refrigeration, cooling, air conditioning, chiller operations.
    Type: Application
    Filed: April 30, 2013
    Publication date: September 19, 2013
    Applicant: Arkema Inc.
    Inventors: Brett L. Van Horn, Phillippe Bonnet, Benjamin Bin Chen, Maher Y. Elsheikh, Richard M. Crooker
  • Patent number: 8454853
    Abstract: The invention relates to heat transfer agents and heat transfer compositions containing hydrocarbon lubricating oils and halogentaed alkene heat transfer fluid that promote oil flow and provide for improved oil return. The heat transfer compositions are useful in various heat transfer systems such as refrigeration, cooling, air conditioning, chiller operations.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 4, 2013
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Philippe Bonnet, Benjamin Bin Chen, Maher Y. Elsheikh, Richard M. Crooker
  • Publication number: 20110012052
    Abstract: The invention relates to heat transfer agents and heat transfer compositions containing hydrocarbon lubricating oils and halogentaed alkene heat transfer fluid that promote oil flow and provide for improved oil return. The heat transfer compositions are useful in various heat transfer systems such as refrigeration, cooling, air conditioning, chiller operations.
    Type: Application
    Filed: March 6, 2009
    Publication date: January 20, 2011
    Inventors: Brett L. Van Horn, Philippe Bonnet, Benjamin Bin Chen, Maher Y. Elsheikh, Richard M. Crooker
  • Patent number: 6518324
    Abstract: Polymer foams containing nanoclay are provided, the foams having improved properties such as thermal insulation values.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: February 11, 2003
    Assignee: Atofina Chemicals, Inc.
    Inventors: Jiri E. Kresta, Jinhuang Wu, Richard M. Crooker
  • Patent number: 6358434
    Abstract: Foam blowing agent blends of D11 and a pentane are provided, as are polyol premixes containing such blends. The resulting foams exhibit dramatic improvement in fire resistance.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: March 19, 2002
    Assignee: ATO FINA Chemicals, Inc.
    Inventors: Jinhuang Wu, Douglas R. Dillon, Richard M. Crooker
  • Patent number: 6235161
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: May 22, 2001
    Assignee: Atofina Chemicals, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 6225365
    Abstract: PVC foam blown with a physical blowing agent comprising a gaseous HFC is provided.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: May 1, 2001
    Assignee: Atofina Chemicals, Inc.
    Inventors: Saeid Zerafati, Richard M. Crooker, Jinhuang Wu, Michael Q. Tran
  • Patent number: 6159346
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as dialkylhydroxylamine and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: December 12, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 6059933
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: May 9, 2000
    Assignee: ELF Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 5958992
    Abstract: Foam blowing agents blends of 10-90% of n- and/or i-pentane with 90-10% of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: September 28, 1999
    Assignee: Elf Atochem North America, Inc.
    Inventors: Jinhuang Wu, Douglas R. Dillon, Richard M. Crooker
  • Patent number: 5567281
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 22, 1996
    Assignee: Elf Atochem North America, Incorporated
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 5531867
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: July 2, 1996
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 5246626
    Abstract: Storage-stable 141b prepared by contacting 141b with alumina at temperatures of about 0-100 degrees Centigrade, compositions containing the thus treated 141b, and uses thereof for the production of polyurethane and polyisocyanurate foams.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: September 21, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh
  • Patent number: 5246625
    Abstract: Storage-stable 141b prepared by contacting 141b with alumina at temperatures of about 0-100 degrees Centigrade, compositions containing the thus treated 141b, and uses thereof for the production of polyurethane and polyisocyanurate foams.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: September 21, 1993
    Assignee: EH Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh
  • Patent number: 5221697
    Abstract: Storage-stable 141b prepared by contacting 141b with alumina at temperatures of about 0-100 degrees Centigrade, compositions containing the thus treated 141b, and uses thereof for the production of polyurethane and polyisocyanurate foams.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: June 22, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh
  • Patent number: 5188749
    Abstract: Refrigerant mixtures of the HCFCs monochlorodifluoromethane, 2-chloro-1,1,1,2-tetrafluoroethane, and 1-chloro-1,1-difluoroethane whose composition falls within the area of polygon KLTS of the FIGURE.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: February 23, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventor: Richard M. Crooker
  • Patent number: 5177270
    Abstract: Compositions of 141b which are stabilized with 4-benzyloxyphenol or 2,6-di-t-butyl-4-methylphenol.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: January 5, 1993
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh
  • Patent number: 5169995
    Abstract: Storage-stable compositions of 141b which are inhibited against decomposition with additives such as alpha-methylstyrene.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: December 8, 1992
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, James P. Lavelle, Maher Y. Elsheikh
  • Patent number: 5169996
    Abstract: HCFC blowing agents such as 141b which are stabilized with diethylhydroxylamine, 1,4-benzoquinone, or 2,6-di-t-butylbenzoquinone.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: December 8, 1992
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Robert B. Hager