Patents by Inventor Yat Fat Suen

Yat Fat Suen 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).

  • Method for improving fuel economy of a heavy duty diesel engine
    Publication number: 20120247412
    Abstract: Disclosed is a method for improving the fuel economy of a heavy duty diesel engine which produces a heavily sooted lubricating oil composition during the engine's normal operation. The method involves introducing lubricating the heavy duty diesel engine with a heavy duty diesel engine lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) a minor effective amount of an ashless friction modifier comprising a reaction product of a C4 to about C75 fatty acid ester and a mono- or dialkanolamine.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: Chevron Oronite Company LLC
    Inventors: Jeffrey J. Toman, Gaurav Bhalla, Elaine S. Yamaguchi, Yat Fat Suen, Trevor Miller, Francois Simard