Patents by Inventor Charlie Sherwood

Charlie Sherwood 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).

  • Plasma apparatus and method
    Patent number: 6110540
    Abstract: A gas purged counter-electrode prevents the counter-electrode from being covered with dielectric material by flowing gas past a surface of a metal element. The gas purged counter-electrode produces a relatively high-density plasma which effectively acts as the counter-electrode for a coating system. The gas purged counter-electrodes can be used with PECVD or sputtering systems.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: August 29, 2000
    Assignee: The BOC Group, Inc.
    Inventors: Joseph Countrywood, Sohrab Zarrabian, Abraham I. Belkind, Charlie Sherwood, Frank Jansen