Patents by Inventor David L. Spivey

David L. Spivey 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).

  • Publication number: 20220411705
    Abstract: Methods of reducing stochastic pre-ignition events and/or carbonaceous deposits in a gasoline-fueled engine by adding at least 10 ppm by weight of a compound having at least one alkyl succinic acid group to a gasoline fuel, wherein said compound is the product of (a) and (b), wherein: (a) is an amine with at least one tertiary nitrogen, water, or a hydrocarbyl substituted alcohol; and (b) is a hydrocarbyl-substituted succinic acid and/or anhydride.
    Type: Application
    Filed: November 22, 2019
    Publication date: December 29, 2022
    Inventors: Garrett Parker, Stuart L. Bartley, Alexander Michlberger, Anthony R. Frank, Michael D. Nicholls, Adam E. Franczak, David L. Spivey, Alexander Holmes, George S. Szappanos, Mark C. Davies
  • Patent number: 7938867
    Abstract: A fuel composition contains (a) a medium substantially free of to free of sulphur; (b) a detergent/dispersant additive; and (c) a liquid fuel where the medium substantially free of to free of sulphur is an aliphatic hydrocarbon solvent, and where the aliphatic hydrocarbon solvent is present from at least about 50 wt % to about 100 wt % of the total amount of the medium. The fuel composition is prepared by a process and is useful in a process, where the fuel composition includes a medium that is a hydrocarbon or a nonhydrocarbon or a mixture thereof, to increase the efficiency of an exhaust after-treatment device of an internal combustion engine.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: May 10, 2011
    Assignee: The Lubrizol Corporation
    Inventors: David L. Spivey, Robert H. Barbour, William B. Chamberlin, III, John K. Pudelski
  • Patent number: 7901471
    Abstract: A fuel composition contains (a) a medium substantially free of to free of sulphur; (b) a detergent/dispersant additive; and (c) a liquid fuel where the medium substantially free of to free of sulphur is an aliphatic hydrocarbon solvent, and where the aliphatic hydrocarbon solvent is present from at least about 50 wt % to about 100 wt % of the total amount of the medium. The fuel composition is prepared by a process and is useful in a process, where the fuel composition includes a medium that is a hydrocarbon or a nonhydrocarbon or a mixture thereof, to increase the efficiency of an exhaust after-treatment device of an internal combustion engine.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: March 8, 2011
    Assignee: The Lubrizol Corporation
    Inventors: David L. Spivey, Robert H. Barbour, William B. Chamberlin, III, John K. Pudelski
  • Publication number: 20090217570
    Abstract: The invention provides a method of controlling by-products or pollutants from fuel combustion, comprising corn-busting a fuel containing a dispersion, the dispersion comprises: (a) a mixture of at least two metal bases, wherein each metal of the metal bases has an average oxidation state of (+2) or higher, (b) at least one surfactant; and (c) at least one organic medium, wherein the metal bases are uniformly dispersed in the organic medium.
    Type: Application
    Filed: November 9, 2006
    Publication date: September 3, 2009
    Applicant: The Lubrizol Corporation
    Inventors: David Hobson, Alex F. Psaila, David L. Spivey
  • Patent number: 7402186
    Abstract: A fuel composition contains (a) a medium substantially free of to free of sulphur; (b) a detergent/dispersant additive; and (c) a liquid fuel where the medium substantially free of to free of sulphur is an aliphatic hydrocarbon solvent, and where the aliphatic hydrocarbon solvent is present from at least about 50 wt % to about 100 wt % of the total amount of the medium. The fuel composition is prepared by a process and is useful in a process, where the fuel composition includes a medium that is a hydrocarbon or a nonhydrocarbon or a mixture thereof, to increase the efficiency of an exhaust after-treatment device of an internal combustion engine.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: July 22, 2008
    Assignee: The Lubrizol Corporation
    Inventors: David L. Spivey, Robert H. Barbour, William B. Chamberlin, III, John K. Pudelski
  • Patent number: 4340153
    Abstract: A method and device is disclosed for aseptically and automatically diluting and dispensing liquids such as medication. The quantities to be delivered are selected, and an electronic circuit translates the selections into sequential and repetitive pumping by syringes comprising part of the device. The syringes are powered by pressurized air, and the entire device is enclosed and supplied with filtered air at a positive pressure to produce aseptic conditions.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: July 20, 1982
    Inventor: David L. Spivey