Patents by Inventor Robert B. Hanzok

Robert B. Hanzok 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: D396772
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: August 11, 1998
    Inventor: Robert B. Hanzok
  • Patent number: D402845
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: December 22, 1998
    Inventor: Robert B. Hanzok