Patents by Inventor Hannah Greenfield

Hannah Greenfield 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).

  • Asphaltene Inhibition
    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
  • DIESEL DETERGENT WITHOUT A LOW MOLECULAR WEIGHT PENALTY
    Publication number: 20150267138
    Abstract: The composition of the present invention related to a quaternary ammonium salt detergent and the use of such quaternary ammonium salt detergents in a fuel composition to reduce diesel injector deposits and remove or clean up existing deposits on the diesel injectors.
    Type: Application
    Filed: October 22, 2013
    Publication date: September 24, 2015
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: James H. Bush, Robert H. Barbour, David J. Moreton, Hannah Greenfield, Paul R. Stevenson, David C. Arters
  • DIESEL DETERGENT WITHOUT A LOW MOLECULAR WEIGHT PENALTY
    Publication number: 20150252278
    Abstract: The composition of the present invention related to a quaternary ammonium salt detergent and the use of such quaternary ammonium salt detergents in a fuel composition to reduce diesel injector deposits and remove or clean up existing deposits on the diesel injectors.
    Type: Application
    Filed: October 22, 2013
    Publication date: September 10, 2015
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: James H. Bush, Robert H. Barbour, David J. Moreton, Hannah Greenfield, Paul R. Stevenson, David C. Arters
  • Polyester Quaternary Salt and Compositions Thereof
    Publication number: 20140114019
    Abstract: The invention relates to a composition containing a particulate solid; an organic medium; and a quaternised polyester salt which comprises a product obtained/obtainable by reaction of (i) a polyester containing a tertiary amino group; and (ii) a quaternising agent suitable for converting the tertiary amino group to a quaternary nitrogen, wherein the quaternising agent is a hydrocarbyl epoxide in combination with an acid, or mixtures thereof. The invention further relates to the use of the product as a dispersant. The invention further relates to the use of the dispersant in media, such as inks, mill bases, plastics and paints.
    Type: Application
    Filed: May 4, 2012
    Publication date: April 24, 2014
    Applicant: LUBRIZOL CORPORATION
    Inventors: Dean Thetford, David J. Moreton, Hannah Greenfield, Joanne L. Jones
  • Lubricating Composition Containing a Dispersant
    Publication number: 20140107003
    Abstract: The invention provides a lubricating composition containing a lubricating composition comprising an oil of lubricating viscosity and a quaternised polyester salt. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the quaternised polyester salt as a dispersant.
    Type: Application
    Filed: June 18, 2012
    Publication date: April 17, 2014
    Inventors: Matthew D. Gieselman, Joanne L. Jones, David J. Moreton, Dean Thetford, Hannah Greenfield
  • FUEL ADDITIVE CONTAINING A DISPERSION OF IRON PARTICLES AND AN AMMONIUM POLYESTER DETERGENT
    Publication number: 20140033604
    Abstract: A composition contains an additive for assisting with the regeneration of the PF in the form of an organic dispersion of iron particles and a detergent including a polyester quaternary ammonium salt.
    Type: Application
    Filed: December 19, 2011
    Publication date: February 6, 2014
    Applicants: THE LUBRIZOL CORPORATION, RHODIA OPERATIONS
    Inventors: Lauriane D'Alencon, Michael Lallemand, Virginie Harle, David J. Moreton, Malcolm G.J. MacDuff, Magali Pudlarz, Hannah Greenfield, Dean Thetford, Joanne L. Jones
  • Polyester Quaternary Ammonium Salts
    Publication number: 20130239468
    Abstract: The invention relates to polyester quaternary ammonium salts, including amine, amide, and ester salts, processes for making them, and their use as additives, including their use in fuels, such as diesel fuel and fuel oils. The invention particularly relates to the use of polyester quaternary ammonium salts as detergents in fuels and the methods of making them.
    Type: Application
    Filed: November 21, 2011
    Publication date: September 19, 2013
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Hannah Greenfield, Dean Thetford, David J. Moreton