Patents by Inventor Robert D. Piwko

Robert D. Piwko 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).

  • Infant seat
    Publication number: 20040217643
    Abstract: This present invention relates generally to an infant seat, and in particular, to an infant seat that provides a stable, enhanced seating position for an infant and includes a sensory stimulus unit with a slide switch that, when actuated, effectuates a change in visual appearance of the stimulus unit and a corresponding change in the sensory output.
    Type: Application
    Filed: November 24, 2003
    Publication date: November 4, 2004
    Inventors: Robert D. Piwko, John F. Rhein, Michael Thomas Kane