Patents by Inventor Laura J. Whaley

Laura J. Whaley 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).

  • Ashless lubricating oil formulation for natural gas engines
    Patent number: 6001780
    Abstract: The present invention provides an ashless lubricating oil composition that improves the corrosion properties in natural gas engines. The ashless lubricating oil composition comprises:a) a major amount of base oil of lubricating viscosity;b) from about 1 to 6 wt % of an untreated polyalkylene or polyalkenyl succinimide dispersant; andc) from about 1 to 6 wt % of a borated polyalkylene or polyalkenyl succinimide dispersant.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: December 14, 1999
    Assignee: Chevron Chemical Company LLC
    Inventors: Andrew W. Ho, Mark R. Logan, Laura J. Whaley