Patents by Inventor Claire L. Hollingshurst

Claire L. Hollingshurst 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).

  • Quaternary salts for use as surfactants in dispersions
    Patent number: 8460404
    Abstract: The invention provides a composition comprising a dispersion comprising (a) an inorganic metal compound, (b) a quaternary salt surfactant and (c) an organic medium, wherein the metal compounds are uniformly dispersed in the organic medium. The invention also provides fuel compositions comprising said dispersion and methods of operating internal combustion engines and open flame burners utilizing said dispersion.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: June 11, 2013
    Assignee: The Lubrizol Corporation
    Inventor: Claire L. Hollingshurst
  • Quaternary Salts for Use as Surfactants in Dispersions
    Publication number: 20110048354
    Abstract: The invention provides a composition comprising a dispersion comprising (a) an inorganic metal compound, (b) a quaternary salt surfactant and (c) an organic medium, wherein the metal compounds are uniformly dispersed in the organic medium. The invention also provides fuel compositions comprising said dispersion and methods of operating internal combustion engines and open flame burners utilizing said dispersion.
    Type: Application
    Filed: May 11, 2009
    Publication date: March 3, 2011
    Applicant: THE LUBRIZOL CORPORATION
    Inventor: Claire L. Hollingshurst
  • Metal hydroxide desiccated emulsions used to prepare grease
    Patent number: 7691795
    Abstract: The invention provides a grease composition comprising a stable dispersion of a metal hydroxide with a number average particle size in the range 20 nanometres to 2 micrometres, a surfactant with a HLB of less than 10, a mono- or poly-carboxylic acid, and an oil of lubricating viscosity. The method of preparing a grease composition is also disclosed with benefits including a reduction in reaction time, amount of foam produced and environmental hazards.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: April 6, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Stephen J. Nolan, Carl F. Kernizan, Paul S. Greenfield, Claire L. Hollingshurst