Patents by Inventor Erhard Schondorf

Erhard Schondorf 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).

  • Electrotherapy apparatus with superimposed AC fields
    Patent number: 5476481
    Abstract: An electrotherapeutic field stimulator includes at least a pair of electrodes for applying the electricity to the body in the form of an electric field and a generator for providing the electricity to the electrodes in the form of at least two superimposed alternating current fields of different frequencies to provide the treatment waveform.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: December 19, 1995
    Assignees: Robert Ley, Ralf Scherer
    Inventor: Erhard Schondorf