Patents by Inventor John W. Dunkerley

John W. Dunkerley 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: 10190071
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 29, 2019
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Publication number: 20160046855
    Abstract: The technology disclosed herein provides compositions and methods for asphaltene control in a hydrocarbon fluid, such as crude oil, by employing a quaternary ammonium salt.
    Type: Application
    Filed: May 20, 2014
    Publication date: February 18, 2016
    Inventors: Antonio Mastrangelo, Hannah Greenfield, John W. Dunkerley
  • Publication number: 20160040091
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Patent number: 9193934
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 24, 2015
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Patent number: 9175241
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 3, 2015
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Patent number: 9163196
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: October 20, 2015
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Patent number: 8470749
    Abstract: The invention provides a process for preparing a neutral or an overbased detergent, the process by: reacting (a) a pre-prepared suspension comprising (i) a metal base with a mean particle size of 10 micrometers or less; (ii) a surfactant; and (iii) an organic medium in which the metal base is suspended typically by a physical process. An overbased detergent may be formed with a further reaction with acidifying overbasing agent. The invention further provides a lubricant composition containing said neutral and overbased detergent.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 25, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Elisa Seddon, Claire Hollingshurst, Brian R. Cunningham, Alexander F. Psaila, David Hobson, Mohamed G. Fahmy, Willis P. Nichols, John W. Dunkerley
  • Publication number: 20130005621
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: November 17, 2010
    Publication date: January 3, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Publication number: 20130005627
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: November 17, 2010
    Publication date: January 3, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Publication number: 20120329691
    Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
    Type: Application
    Filed: November 17, 2010
    Publication date: December 27, 2012
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
  • Publication number: 20090203563
    Abstract: The invention provides a process for preparing a neutral or an overbased detergent, the process by: reacting (a) a pre-prepared suspension comprising (i) a metal base with a mean particle size of 10 micrometres or less; (ii) a surfactant; and (iii) an organic medium in which the metal base is suspended typically by a physical process. An overbased detergent may be formed with a further reaction with acidifying overbasing agent. The invention further provides a lubricant composition containing said neutral and overbased detergent.
    Type: Application
    Filed: December 20, 2006
    Publication date: August 13, 2009
    Applicant: The Lubrizol Corporation
    Inventors: Elisa Seddon, Claire Hollingshurst, Brian R. Cunningham, Alexander F. Psaila, David Hobson, Mohamed G. Fahmy, Willis P. Nichols, John W. Dunkerley