Patents by Inventor Robert G. Bolf

Robert G. Bolf 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).

  • Arrow nock assembly
    Patent number: 5306020
    Abstract: An arrow is arranged to threadedly receive a nock member, wherein the nock member is threadedly received within an associated insert coaxially positioned within the rearward distal end of the associated arrow shaft.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: April 26, 1994
    Inventor: Robert G. Bolf
  • Bow sling
    Patent number: D644705
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: September 6, 2011
    Inventor: Robert G. Bolf