Patents by Inventor Robert K. Headman

Robert K. Headman 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 guitar assembly
    Patent number: 5461958
    Abstract: An acoustic guitar having a bracing on the underside of the soundboard which interconnects with the headblock and neck joint such that the soundboard is stiffened in cantilever fashion in a manner which resists failure in the region of the soundhole without affecting adversely the tonal qualities of the guitar.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: October 31, 1995
    Assignee: C. F. Martin & Company, Inc.
    Inventors: Michael M. Dresdner, Robert K. Headman