Patents by Inventor Karl Rathmann

Karl Rathmann 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).

  • Thyristor with pressure contacting
    Patent number: 4079409
    Abstract: An improved thyristor with pressure contacting in which at least a portion of the control base zone in addition to the cathode zone extends on a single major surface of a wafer-shaped thyristor semiconductor body and the cathode base zone and the control base zone are each contiguous and are provided at least in part at the major surface with completely insulated ohmic electrodes, i.e., cathode and control electrodes.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: March 14, 1978
    Assignee: Licentia Patent-Verwaltungs G.m.b.H.
    Inventors: Karl Rathmann, Alois Sonntag