Patents by Inventor David W. Shaffer

David W. Shaffer 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).

  • Reed construction
    Patent number: 4355560
    Abstract: A reed construction for a musical instrument fabricated from a plurality of fibers combined with a binding agent and a filler material of lower density than the binding agent, so as to produce an acoustic impedance comparable to that of the natural cane reed.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: October 26, 1982
    Inventor: David W. Shaffer