Patents by Inventor Dennis F. Piwonka

Dennis F. Piwonka 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: 5092779
    Abstract: A quiz controller for developing a time-ordered list of contestant responses. A microprocessor-based main unit is in electronic communication with one or more players interfaces. Each player interfaces may have up to eight contestant pushbuttons. The main unit includes a digital display on a front panel and a digital display on a back panel. The main unit also includes four control pushbuttons which control two timers, the contestant display, and clearing the system. The control pushbuttons also may be used to reset the parameters of the game.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: March 3, 1992
    Inventors: Dennis F. Piwonka, Gregory S. Schreiber