Patents by Inventor Rinaldo Caprotti

Rinaldo Caprotti 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).

  • Additives and fuel oil compositions
    Patent number: 5958089
    Abstract: An additive composition comprising: (a) an ashless dispersant comprising an acylated nitrogen compound; and (b) a carboxylic acid, or an ester of the carboxylic acid and an alcohol wherein the acid has from 2 to 50 carbon atoms and the alcohol has one or more carbon atoms, which provides an improvement in the lubricity of fuel oils and exhibits improved solubility in the fuel oil.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: September 28, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Brid Dillworth, Rinaldo Caprotti
  • Fuel oil compositions
    Patent number: 5858028
    Abstract: The lubricity of low sulphur fuels is enhanced by incorporation of a lubricity enhancing additive in combination with an ethylene-unsaturated ester copolymer.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: January 12, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Brian William Davies, Rinaldo Caprotti, Brid Dilworth
  • Additive for hydrocarbon oils
    Patent number: 5833721
    Abstract: An antifoam additive for hydrocarbon oils and in particular fuel oils comprises the combination of an antifoam agent and an ashless dispersant.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: November 10, 1998
    Assignee: Exxon Chemical Patents Inc
    Inventors: Richard Joseph Hart, Rinaldo Caprotti
  • Fuel oil compositions with improved lubricity properties
    Patent number: 5833722
    Abstract: The lubricity of low sulphur fuels is enhanced by incorporation of a lubricity enhancing additive in combination with a nitrogen compound.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: November 10, 1998
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Brian William Davies, Rinaldo Caprotti, Brid Dilworth
  • Fuel oil compositions
    Patent number: 5772705
    Abstract: The lubricity of low sulphur fuels is enhanced by incorporation of a cold flow improver.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: June 30, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Rinaldo Caprotti
  • Oil additives and compositions
    Patent number: 5733346
    Abstract: Oil-soluble polar nitrogen components are used in combination with fuel oil antifoams to control foaming in fuel oils.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: March 31, 1998
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Brian William Davies, Alessandro Lombardi, Rinaldo Caprotti