Patents by Inventor Leonard Sherman Bartley

Leonard Sherman Bartley 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).

  • Antifreeze coolant composition for high temperature applications
    Patent number: 7387748
    Abstract: The present invention comprises an improved antifreeze coolant composition with certain additives that serve to increase the thermal stability of the glycol component of a glycol/water coolant composition and to reduce the tendency of the glycol component to degrade under elevated thermal conditions. These additives comprise organic compounds with a carboxylic acid moiety and a hydroxyl moiety, and also tricarballylic acid. Another aspect of this invention concerns a method for improving the stability of the glycol component of a glycol/water coolant composition in engine cooling/heating systems by formulating a glycol/water coolant composition with the thermal stability additive to form an improved coolant composition, and contacting the engine cooling/heating system with the improved coolant composition.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: June 17, 2008
    Assignee: Texaco Inc.
    Inventors: Regis Joseph Pellet, Paul Otto Fritz, Leonard Sherman Bartley, Jr.
  • Antifreeze coolant composition for high temperature applications
    Publication number: 20040104375
    Abstract: The present invention comprises an improved antifreeze coolant composition with certain additives that serve to increase the thermal stability of the glycol component of a glycol/water coolant composition and to reduce the tendency of the glycol component to degrade under elevated thermal conditions. These additives comprise organic compounds with a carboxylic acid moiety and a hydroxyl moiety, and also tricarballylic acid. Another aspect of this invention concerns a method for improving the stability of the glycol component of a glycol/water coolant composition in engine cooling/heating systems by formulating a glycol/water coolant composition with the thermal stability additive to form an improved coolant composition, and contacting the engine cooling/heating system with the improved coolant composition.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Applicant: TEXACO INC.
    Inventors: Regis Joseph Pellet, Paul Otto Fritz, Leonard Sherman Bartley