Patents by Inventor Jean J. Duruz

Jean J. Duruz 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).

  • Molten salt electrowinning method, anode and manufacture thereof
    Patent number: 4614569
    Abstract: A method of electrowinning a metal such as aluminum from e.g. a cryolite based melt containing alumina employs an enode having as its operative surface a protective coating which is maintained by the presence of constituents of the coating dissolved in the melt. The protective coating is preferably a fluorine-containing cerium oxycompound electro-deposited in-situ from cerium species dissolved in a fluoride-based melt.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: September 30, 1986
    Assignee: Eltech Systems Corporation
    Inventors: Jean J. Duruz, Jean-Pierre Derivaz, Pierre-Etienne Debely, Iudita L. Adorian