Patents by Inventor Kevin D. Hosman

Kevin D. Hosman 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).

  • Ion pump having protective mask components overlying the cathode elements
    Patent number: 6220821
    Abstract: Disclosed herein is an ion pump construction having constructional components to avoid etch through failure of the vacuum housing and, additionally, constructional features to reduce the latent period within which the ion pumping function is initiated.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: April 24, 2001
    Assignee: Kernco, Incorporated
    Inventors: Robert H. Kern, Kevin D. Hosman