Patents by Inventor Kenneth Whithman

Kenneth Whithman 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).

  • RF modulated electron gun
    Patent number: 6593579
    Abstract: A radio frequency (RF) modulated electron gun includes a cathode, electrically coupled to operate as a source of charged particles, and a grid, positioned apart from the cathode. The grid and the cathode are electrically coupled to a grid voltage source and to a RF source. The grid voltage source places the grid at a first potential, and the RF source places the grid at a second potential selected to produce groups of the charged particles. The groups of charged particles are produced with each period of a signal received from the RF source.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: July 15, 2003
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Kenneth Whithman