Patents by Inventor John J. Heichberger

John J. Heichberger 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).

  • Grid ceiling
    Patent number: 5174090
    Abstract: A grid ceiling comprising the support grid 10, 12 having first openings 16 therein in at least some of which are mounted first grid elements 24 defining second openings 30 in which second grid elements 40 are mounted. In this way several grid elements of progressively smaller size can be mounted in openings in preceeding grid elements, e.g. to provide a pyramidal structure.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: December 29, 1992
    Assignee: Hunter Douglas Architectural Products Inc.
    Inventors: Jonathan P. Teli, John J. Heichberger