Patents by Inventor Hervé Sigal

Hervé Sigal 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).

  • Flat display screen with a protection grid
    Patent number: 6683415
    Abstract: A flat display screen including a.cathode provided with field effect electron emission means, a cathodoluminescent anode placed opposite to the cathode, an extraction grid associated with the cathode, and at least one filtering grid, permeable to electron bombardment and biased to forbid parasitic ions, generated on one side of this filtering grid, to reach the cathode or the anode located on the other side.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: January 27, 2004
    Assignee: Pixtech, S.A.
    Inventors: Eric Compain, Hervé Sigal