Patents by Inventor David R. Barwig

David R. Barwig 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).

  • Miniature modular volume control and integrated circuit assembly for use with a hearing air
    Patent number: 5001762
    Abstract: A hearing aid faceplate assembly includes a faceplate having a volume control/switch receiving aperture. A volume control/switch integrated circuit assembly is mounted within the aperture. The volume control/switch integrated circuit assembly includes a module substrate, an amplifier mounted to the substrate and a volume control mounted to the substrate and electrically coupled to the amplifier.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: March 19, 1991
    Assignee: Resistance Technology, Inc.
    Inventors: David R. Barwig, Michael P. Geraci