Patents by Inventor Charles E. Heiss

Charles E. Heiss 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).

  • Illuminated stepping stones
    Patent number: 4992914
    Abstract: An illuminated stepping stone which is light in weight, of sufficient strength to support a human being of extremely heavy weight, is attractive in appearance and can be manufactured inexpensively. Illumination of the stepping stone is by means of a low voltage source of electricity. Multiple stepping stones are to be connected together and illuminated from a source of electricity.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: February 12, 1991
    Inventors: Charles E. Heiss, Lawrence S. Gluck
  • Illuminated tracing toy
    Patent number: D331608
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: December 8, 1992
    Inventors: Charles E. Heiss, Lawrence S. Gluck