Patents by Inventor Frederick F. Wolff

Frederick F. Wolff 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: 6483086
    Abstract: A deicing apparatus comprises an integral stack of layers inseparably joined in intimate mutual contact forming a flexible mat. The layers include a first layer to be placed into contact with a surface to be deiced or to be maintained clear of ice, having electrical insulation properties, a second layer of resistance heating, electrically conductive material formed in an electrical conducting path, a third layer of electrically insulating material, a forth heat energy reflective layer of metallic foil, and a fifth layer of thermally insulative and physically tough material. A device for applying an electrical current to the second layer to produce heat energy is provided.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: November 19, 2002
    Inventors: Frederick F. Wolff, Nabil T. Hussani