Patents by Inventor John Whealton

John Whealton 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).

  • Individually addressable cathodes with integrated focusing stack or detectors
    Patent number: 6917043
    Abstract: Systems and method are described for addressable field emission array (AFEA) chips. A plurality of individually addressable cathodes are integrated with an electrostatic focusing stack and/or a plurality of detectors on the addressable field emission array. The systems and methods provide advantages including the avoidance of space-charge blow-up.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: July 12, 2005
    Assignee: UT-Battelle LLC
    Inventors: Clarence E. Thomas, Larry R. Baylor, Edgar Voelkl, Michael L. Simpson, Michael J. Paulus, Douglas Lowndes, John Whealton, John C. Whitson, John B. Wilgen