Patents by Inventor Cheug L. Chen

Cheug L. Chen 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).

  • Ultraviolet preionizer for high power laser
    Patent number: 4425654
    Abstract: An ultraviolet preionizer for high power gas lasers. The preionizer is a spark gap array or groups of arrays adapted to be fired preceeding the main discharge pulse of the laser. A fast energy dump to the spark array results in efficient ultraviolet light production. The spark gaps of an array are automatically fired in sequence providing a series current path through the gaps to dump the energy, while providing an electrical glow discharge at each gap for ultraviolet emission.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: January 10, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: William D. Dible, Cheug L. Chen