Patents by Inventor Polis P. Koutroukides

Polis P. Koutroukides 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).

  • Green fork
    Patent number: D307619
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: May 1, 1990
    Inventor: Polis P. Koutroukides