Patents by Inventor Ronald Jukes

Ronald Jukes 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).

  • Trunk piston engine lubricating oil compositions
    Patent number: 9206374
    Abstract: Disclosed herein is a trunk piston engine lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; (b) one or more carboxylate-containing detergents comprising a salt of an alkyl-substituted hydroxyaromatic carboxylic acid, wherein at least about 50% of the alkyl moiety of the alkyl-substituted hydroxyaromatic carboxylic acid comprises C26+ alkyl groups derived from one or more normal alpha olefins; and (c) one or more zinc dithiophosphates in an amount of about 0.02 to about 0.12 wt. % in terms of phosphorus content.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: December 8, 2015
    Assignees: Chevron Oronite SAS, Chevron Oronite Company LLC, Chevon Oronite Technology B.V.
    Inventors: Ronald Jukes, Todd Brookhart, Christophe P. Le Deore