Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4435368 | Hydrometallurgical process for selective dissolution of mixtures of oxy compounds | Jean-Michel Demarthe, Paolo Fossi | 1984-03-06 |
| 4288304 | Hydrometallurgical process for treatment of sulphur ores | Jean-Michel Demarthe, Andre Georgeaux | 1981-09-08 |
| 4236981 | Hydrometallurgical process for treating nickel mattes | Jean-Michel Demarthe, Monique Goujet | 1980-12-02 |
| 4230487 | Method of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentrates | Jean-Michel Demarthe, Andre Georgeaux | 1980-10-28 |