Patents by Inventor Michael R. Rigley

Michael R. Rigley 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).

  • Carbonaceous deposit-resistant coating for engine components
    Patent number: 5771873
    Abstract: An engine component such as an intake or exhaust valve, or any other component near or within the combustion chamber, is coated with an amorphous hydrogenated carbon film coating to prevent the formation of carbonaceous deposits thereon. Methods for forming the film coating are also disclosed.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: June 30, 1998
    Assignee: Ford Global Technologies, Inc.
    Inventors: Timothy J. Potter, Xia Zhang, William Vassell, Michael R. Rigley, Robert E. Hetrick