Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844808 | Liquid/liquid extraction of gallium values | Richard Fitoussi | 1989-07-04 |
| 4834952 | Purification of barium values | Alain Rollat | 1989-05-30 |
| 4818504 | Purified, strontium-free barium values | Thierry Delloye | 1989-04-04 |