Patents by Inventor Melanie Tobias

Melanie Tobias 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).

  • Crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines
    Publication number: 20070021312
    Abstract: The present invention is directed to a crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines comprising (A) a major amount of an oil of lubricating viscosity, and (B) a silver wear protection additive composition, and (C) one or more detergents. The silver wear protection additive composition of the present invention comprises a mixture of (i) a hydrocarbylamine salt of a di-alkyl di-thiophosphoric acid and (ii) a hydrocarbylamine salt of an alkyl acid phosphate.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventors: Melanie Tobias, Kenneth Nelson, Elaine Yamaguchi, Vernon Small