Patents by Inventor Serge Andre

Serge Andre 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).

  • Reverse conduction thyristor
    Patent number: 3995306
    Abstract: The present invention concerns a reverse conduction thyristor. The diode egrated with the thyristor comprises a P + anode, an N layer having slight doping, an N + cathode intended for facilitating the electrical contact and, between the P + cathode and the slightly doped N layer, a thin extra layer of the P type whose presence increases the critical speed of increase of the direct voltage applied to the thyristor in its blocked state.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: November 30, 1976
    Assignee: Societe Generale de Constructions Electriques et Mecaniques (ALSTHOM)
    Inventors: Serge Andre, Serge Lehmann