Patents by Inventor Harvey E. Willey

Harvey E. Willey 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).

  • Conductive expandable carbonaceous paste material
    Patent number: 5167868
    Abstract: An expandable carbonaceous paste comprising natural graphite flakes and expandable graphite flakes such as acid treated graphite flakes, mixed with a hydrocarbon viscous liquid such as tar so that when the paste is exposed to heat, the paste will expand and have good thermal conductivity characteristics and then upon further heating the paste will convert to a rigid carbon structure.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: December 1, 1992
    Assignee: UCAR Carbon Technology Corporation
    Inventors: Harvey E. Willey, William R. Clark, Harold L. King