Patents by Inventor Frankie A. Opperman

Frankie A. Opperman 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).

  • Educational apparatus
    Patent number: 5634799
    Abstract: Educational apparatus (10) is provided which includes a base member (11) having a plurality of compartments (14) and a plurality of guide channels (50) define therein. Each guide channel (50) interconnects at least two adjacent compartments (14) forming a selection arrangement (51). The apparatus (10) also includes a plurality of tokens (22) and each token (22) is associated with a selection arrangement (51) and locatable in a selected compartment (14) by a user in response to audible or visual observations by the user. The apparatus (10) also has marking means (24) for assessing in use the location of each token (22).
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: June 3, 1997
    Assignee: The South African Mutual Life Assurance Society
    Inventors: Frankie A. Opperman, Alexis A. F. Wadman