Patents by Inventor Ernst Payer

Ernst Payer 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).

  • Acoustic transducers with improved frequency response
    Patent number: 4860368
    Abstract: An acoustic transducer has two partially annular resonators arranged in an ante-chamber of a transducer plate, the resonators being formed by annular channels which are provided in an upper housing component which are sealed from the exterior by a covering plate. The channels are linked to the ante-chamber of the transducer plate through openings.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: August 22, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ernst Payer, Hans Schierl