Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5378338 | Superstructure for a very high power electrolysis cell for the production of aluminum | Christian Duval, Alain Vanacker | 1995-01-03 |
| 4720333 | Electrolysis tank superstructure with intermediate gantry, for the production of aluminium | Christian Duval, Michel Leroy, Alain NOIZET | 1988-01-19 |
| 4713161 | Device for connection between very high intensity electrolysis cells for the production of aluminium comprising a supply circuit and an independent circuit for correcting the magnetic field | Joseph Chaffy, Michel Leroy | 1987-12-15 |
| 4696730 | Circuit for the electrical connection of rows of electrolysis cells for the production of aluminum at very high current | Joseph Chaffy | 1987-09-29 |
| 4668352 | Process and apparatus for automatic increased suction extraction on electrolysis tanks for the production of aluminum | George Duprat, Benoit Sulmont | 1987-05-26 |
| 4654133 | Hall-Heroult electrolysis tank with asymmetrical cathodic bars and heat insulation | Spyridon Casdas, Laurent Michard | 1987-03-31 |
| 4612105 | Carbonaceous anode with partially constricted round bars intended for cells for the production of aluminium by electrolysis | — | 1986-09-16 |
| 4605481 | Modular cathodic block and cathode having a low voltage drop for Hall-Heroult electrolysis tanks | — | 1986-08-12 |
| 4592821 | Electrolysis tank with a current strength of greater than 250,000 amperes for the production of aluminum by means of the Hall-Heroult process | Maurice Keinborg, Joseph Chaffy | 1986-06-03 |
| 4431491 | Process and apparatus for accurately controlling the rate of introduction and the content of alumina in an igneous electrolysis tank in the production of aluminium | Paul Bonny, Jean-Louis Gerphagnon, Gerard J. P. B. Laboure, Maurice Keinborg, Pierre Homsi | 1984-02-14 |