Patents by Inventor Mitchell R. Holman

Mitchell R. Holman 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).

  • High density bridge pin
    Patent number: 4197779
    Abstract: A bridge pin for guitar or the like is formed of a heavy metal, such as brass to materially increase the presence and the sustain of the instrument.
    Type: Grant
    Filed: March 8, 1979
    Date of Patent: April 15, 1980
    Inventor: Mitchell R. Holman