Patents by Inventor Rainer Beer

Rainer Beer 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).

  • Motor vehicle audio system
    Patent number: 7092530
    Abstract: A motor vehicle audio system having an audio signal receiver, an amplifier connected thereto via a fiber optic cable and a loudspeaker. A separate amplifier is provided for low audio signals. The amplifier is provided with a substantially higher line voltage when compared with the other audio frequency amplifiers.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: August 15, 2006
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Rainer Beer, Alfred Grom