Patents by Inventor Robert A. Kriss

Robert A. Kriss 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).

  • Arrowhead sharpener
    Patent number: D287222
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: December 16, 1986
    Inventors: Ernest R. Cooley, Robert A. Kriss