Patents by Inventor Kevin D. Carabell

Kevin D. Carabell 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 additive compositions containing a mannich condensation product, a poly (oxyalkylene) monool, and a carboxylic acid
    Patent number: 6749651
    Abstract: A fuel additive composition comprising: a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound (2) an amine having the formula:  wherein A is CH or nitrogen, R1, R2, R3 are independently hydrogen or lower alkyl of 1 to about 6 carbon atoms and each R2 and R3 is independently selected in each —CR2R3— unit, and x is an integer from 1 to about 6; and (3) an aldehyde, wherein the respective molar ratio of reactants (1), (2), and (3) is 1:0.1-2:0.1-2; b) a hydrocarbyl-terminated poly(oxyalkylene) monool; and c) a carboxylic acid as represented by the formula: R4(COOH)y  or anhydride thereof, wherein R4 represents a hydrocarbyl group having about 2 to about 50 carbon atoms, and y represents an integer of 1 to about 4.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: June 15, 2004
    Assignee: Chevron Oronite Company LLC
    Inventors: Kevin D. Carabell, James A. Gray
  • Method of improving the compatibility of a fuel additive composition containing a Mannich condensation product
    Patent number: 6733551
    Abstract: A method of improving the compatibility of a fuel additive composition comprising blending together the following components: a) a Mannich condensation product of (1) a high molecular weight alkyl-substituted hydroxyaromatic compound, (2) an amine having the formula:  wherein A is CH or nitrogen, R1, R2, R3 are independently hydrogen or lower alkyl of 1 to about 6 carbon atoms and each R2 and R3 is independently selected in each —CR2R3— unit, and x is an integer from 1 to about 6;  and (3) an aldehyde, wherein the respective molar ratio of reactants (1), (2), and (3) is 1:0.1-2:0.1-2; b) a hydrocarbyl-terminated poly(oxyalkylene) monool; c) a carboxylic acid as represented by the formula: R4(COOH)y  wherein R4 represents a hydrocarbyl group having about 2 to about 50 carbon atoms, and y represents an integer of 1 to about 4; and d) an anhydride selected from the group consisting of succinic, glutaric, phthalic, and alkyl anhydrides.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: May 11, 2004
    Assignee: Chevron Oronite Company LLC
    Inventors: Kevin D. Carabell, James A. Gray
  • Method of improving the compatibility of a fuel additive composition containing a mannich condensation product
    Publication number: 20040000089
    Abstract: A method of improving the compatibility of a fuel additive composition comprising blending together the following components:
    Type: Application
    Filed: June 18, 2002
    Publication date: January 1, 2004
    Inventors: Kevin D. Carabell, James A. Gray
  • Fuel additive compositions containing a mannich condensation product, a poly (oxyalkylene) monool, and a carboxylic acid
    Publication number: 20030172582
    Abstract: A fuel additive composition comprising:
    Type: Application
    Filed: December 21, 2001
    Publication date: September 18, 2003
    Inventors: Kevin D. Carabell, James A. Gray