Patents by Inventor Ben Dankongkakul

Ben Dankongkakul 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).

  • HIGH-EFFICIENCY ION DISCHARGE METHOD AND APPARATUS
    Publication number: 20200072200
    Abstract: An ion beam generator includes a discharge chamber with a backplate and tubular sidewalk A source of propellant, for example, Xenon gas is provided to the discharge chamber. First and second annular magnets are disposed on or near the backplate, and configured with alternating polarities such that a pair of ring-cusps form on the backplate, without any magnetic ring-cusp formation on the sidewalk A cathode assembly extends into the discharge chamber to provide primary electrons to ionize the propellant.
    Type: Application
    Filed: December 14, 2017
    Publication date: March 5, 2020
    Applicant: The Regents of the University of California
    Inventors: Richard E. Wirz, Ben Dankongkakul