Patents by Inventor James Otto Grenke

James Otto Grenke 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).

  • Patent number: 5806508
    Abstract: A bow holder for holding an archery bow in a ready position is provided. The bow holder includes a vertical member and a horizontal member. The vertical member is mountable to a structure such as a tree. The horizontal member has a proximal end and a distal end. The proximal end is spaced transversely from the distal end so that the distal end extends away from the vertical member at a given distance. The bow holder further includes a string movably securable to the distal end and extending downwardly from the distal end. The string has a support portion comprising a knot. The knot is engageable with the archery bow to hold the archery bow in a ready position. The string supports the weight of the archery bow as a bow hunter aims the archery bow at a target. The knot silently releases engagement from the archery bow as the bow hunter draws back on the archery bow to fire a shot at the target.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: September 15, 1998
    Inventors: Mary Ann Stempien, James Otto Grenke