Patents by Inventor Hubert Wittner

Hubert Wittner 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).

  • Aluminum electrolysis furnace
    Patent number: 3960696
    Abstract: In an aluminum electrolysis furnace provided with an anode structure located above a cathode forming part of the bottom of the furnace chamber, whereby direct electric current between the anode and the cathode causes aluminum to be obtained from aluminum oxide, a portion of the surface of the cathode facing the anode is covered with an electrically nonconductive material to create an electric current distribution which tends to improve the heat distribution within the furnace chamber.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: June 1, 1976
    Assignee: Gebr. Giulini GmbH
    Inventor: Hubert Wittner