Patents by Inventor Earl S. Schlegel, deceased

Earl S. Schlegel, deceased 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).

  • Method of making a self-protected thyristor
    Patent number: 4516315
    Abstract: The present invention is directed to a thyristor self-protected against overvoltage by the avalanche mechanism, the protection resulting from a well cut in the top surface of the thyristor and extending through one base region of the thyristor and forming two regions of opposite conductivity type at the bottom of said well, and to the process for making the thyristor.
    Type: Grant
    Filed: May 9, 1983
    Date of Patent: May 14, 1985
    Assignee: Westinghouse Electric Corp.
    Inventors: John X. Przybysz, Earl S. Schlegel, deceased