Patents by Inventor Walter Willer

Walter Willer 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).

  • Amplifier stage for pulse-width-modulated signals
    Patent number: 4414513
    Abstract: Circuit stage for the optimal driving and very highly efficient operation of a tetrode having a control grid and a plate, including a grid voltage source including two partial voltage sources being connected together at a common junction point with opposite polarity with respect to the control grid, and a control diode connected between the common junction point and the plate.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: November 8, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Willer, Peter Fuchs