Patents by Inventor Michael D. Sexton

Michael D. Sexton 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).

  • Fuel oil compositions
    Patent number: 5478367
    Abstract: The addition to diesel or jet fuel of macrocyclic polyamines, especially those derived from PIBSA, or hydrocarbyl polyamines reduces particle emission, especially in association with organic nitrate cetane improvers.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: December 26, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Michael D. Sexton, Anthony K. Smith, Antonio Gutierrez, Stanley J. Brois
  • Fuel oil treatment
    Patent number: 5460633
    Abstract: An additive comprising an oil-soluble polymer of a C2 to C6 mono-olefin such as polyisobutylene, which polymer has a molecular weight of less than about 500, is used in a fuel oil to reduce, on combustion of the fuel oil, one or more of particulate emissions, hydrocarbon emissions, carbon monoxide emissions, and oxides of nitrogen emissions.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 24, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Anthony K. Smith, Michael D. Sexton, Richard J. Hart
  • Fuel oil treatment
    Patent number: 5460634
    Abstract: An additive comprising an oil-soluble stable free radical, such as a nitroxide, or a precursor therefor, is used in a fuel oil to reduce, on combustion of the fuel oil, one or more of particulate emissions, hydrocarbon emissions, carbon monoxide emissions, and oxides of nitrogen emissions.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 24, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Carlo Fava, Wolfgang W. J. Gschwendtner, Anthony K. Smith, Michael D. Sexton, Richard J. Hart
  • Fuel oil compositions
    Patent number: 5348561
    Abstract: Sediment and color formation in distillate fuels are reduced by the addition of a quaternary ammonium compound comprising a cation in which the ratio of carbon atoms to quaternary nitrogen atoms is not more than 10:1 and an anion which is derived from an acid which is a carboxylic acid, carboxylic acid anhydride, phenol, sulphurized phenol or sulphonic acid.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: September 20, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Michael D. Sexton, Rosalind H. Strange
  • Fuel oil compositions containing guanidinium salts
    Patent number: 5152807
    Abstract: Sediment and color formation in diesel and heating fuel oils, especially those comprising a cracked fraction, may be reduced by incorporating in the fuel oil a guanidinium or substituted guanidinium salt.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: October 6, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Michael D. Sexton, Rosalind H. Strange