Patents by Inventor Nathaniel S. L. Phillips

Nathaniel S. L. Phillips 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).

  • PRE-OXIDATION OF ENGINE VALVES AND SEAT INSERTS FOR IMPROVED LIFE
    Publication number: 20120043490
    Abstract: A valve seat insert operable with a valve to selectively open and close a passage to a cylinder in an internal combustion engine. The valve seat insert includes a cobalt alloy base including at least about 40 wt % Co and at least about 5 wt % Cr. An oxide scale coating is disposed on at least a wear face of the valve seat insert adapted to engage the valve and optionally on a portion of the valve.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 23, 2012
    Applicant: Caterpillar Inc.
    Inventors: Eric Kelsey, Nathaniel S. L. Phillips, Jeff A. Jensen