Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034201 | Recovery of rare earth values from gypsum | Yves Mottot | 1991-07-23 |
| 5011665 | Nonpolluting recovery of rare earth values from rare earth minerals/ores | Yves Mottot | 1991-04-30 |
| 5006254 | Reducing the radium radioactivity of aqueous effluents | Alain Leveque, Jean-Louis Sabot | 1991-04-09 |
| 4954293 | Separation of thorium and rare earth values from fluoride concentrates thereof | Frederic Fabre | 1990-09-04 |