Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961812 | Process and gaseous effluent-collection device for changing spent anodes of pots for electrolysis of aluminum | Gilbert Bouzat | 1999-10-05 |
| 5947888 | Process for insolubilizing and consolidating spent linings from hall-heroult electrolysis cells | Gilbert Bouzat | 1999-09-07 |
| 5365012 | Process for the heat treatment of spent pot linings derived from Hall-Heroult electrolytic cells | Eric Barrillon, Jean-Claude Bontron | 1994-11-15 |
| 5245115 | Process for the thermal shock treatment of spent pot linings obtained from Hall-Heroult electrolytic cells | Eric Barrillon, Jean-Claude Bontron | 1993-09-14 |
| 5245116 | Process for the wet treatment of spent pot linings from hall-heroult electrolytic cells | Jean-Claude Bontron, Jean-Michel Lamerant | 1993-09-14 |
| 4702820 | Pretreatment by alkaline wetting and holding at temperature of natural materials having an argillaceous gangue containing combustible elements | Jean-Michel Philbert | 1987-10-27 |
| 4613361 | High-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable element | Jean-Michel Lamerant, Francois Pallez | 1986-09-23 |