Patents by Inventor Frederick G. J. Grise, deceased

Frederick G. J. Grise, deceased 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).

  • Mirror heater
    Patent number: 5155334
    Abstract: A mirror heating system includes a sheet heater, sized and adapted to cover most of the back of the mirror surface, that can be mounted on the wall or other flat surface before the mirror is put into place. The system is designed so that, despite the needed electrical connections, the front and rear surfaces of the heating system remain essentially planar and parallel.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: October 13, 1992
    Assignee: Flexwatt Corporation
    Inventors: John A. Marstiller, Frederick G. J. Grise, deceased