Patents by Inventor Philip I. Enz

Philip I. Enz 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: 4089125
    Abstract: A teaching aid employing color as a means of communication between teacher and student. The method includes the step of having the teacher ask the students a question while displaying a plurality of answers with each answer being coded with a particular color. Each student is provided with a multi-sided colored block so as to turn the color toward the teacher corresponding to the color of the correct answer displayed. A transparent sheet having a color grid thereon is positioned on projecting means. Another transparent sheet having a plurality of answers thereon is sized to fit atop the color grid so as to position a separate answer in each colored portion of the grid.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: May 16, 1978
    Inventors: Vera G. Enz, Philip I. Enz