Patents by Inventor Frank K. Wolf

Frank K. Wolf 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).

  • Hoop and disc with sounders
    Patent number: 4058314
    Abstract: This game consists primarily of five rubber or plastic rings of tubular structure, which vary in size. The rings include spherical bells which may be removed therefrom, and a disk may be placed in the center of the rings, the disk being provided with fixed whistles for producing sound.
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: November 15, 1977
    Inventor: Frank K. Wolf