Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262136 | Recovery of gold and silver from complex refractory sulphide ores by cyanidisation and oxidation with peroxides | Trevor J. Smith, Michelle A. Spieth, Stephen Roden | 1993-11-16 |
| 4836990 | Removal of organics from Bayer process streams | Dominicus A. Swinkels | 1989-06-06 |
| 4198377 | Process for recovering manganese from aqueous acidic sulphate solutions | Alfred R. Burkin | 1980-04-15 |