Patents by Inventor William E. Heidish

William E. Heidish 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).

  • Aircraft windshield design and method of use
    Patent number: 4932608
    Abstract: An aircraft windshield having an outer glass ply spaced from an inner polycarbonate laminate. The space between the two structure is pressurized with gas at a level approximately one pound per square inch less than the aircraft cabin pressure.
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: June 12, 1990
    Assignee: PPG Industries, Inc.
    Inventors: William E. Heidish, Joseph T. Mueller