Patents by Inventor David Duane Yoder

David Duane Yoder 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).

  • Percussion cap device
    Patent number: 5806227
    Abstract: A thin composite material fabricated specifically to assist in the use of percussion caps as they relate to muzzleloaded firearms.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 15, 1998
    Inventor: David Duane Yoder