Patents by Inventor Jonathan R. Bost

Jonathan R. Bost 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).

  • Piezoelectric transducer apparatus
    Patent number: 4413198
    Abstract: An electroacoustic loudspeaker apparatus is provided including a piezoelectric driver element, the opposed major surfaces of which are acoustically coupled into first and second resonant structures. The first resonant structure exhibits a resonant frequency less than the resonant frequency of the driver and the second resonant structure exhibits a resonant frequency greater than the resonant frequency of the driver thus resulting in a broadened or enhanced frequency response.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: November 1, 1983
    Assignee: Motorola, Inc.
    Inventor: Jonathan R. Bost