Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231823 | Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions | Roman M. Genik-Sas-Berezowsky, Felix Petrus De Kock | 2001-05-15 |
| 5344479 | Upgrading copper sulphide residues containing nickel and arsenic | Derek G. E. Kerfoot | 1994-09-06 |
| 4878945 | Hydrometallurgical process for treating refractory ores containing precious metals | Morris J. V. Beattie | 1989-11-07 |
| 4647307 | Process for recovering gold and silver from refractory ores | Ernest Peters, Morris J. V. Beattie | 1987-03-03 |
| 4632738 | Hydrometallurgical copper process | Morris J. V. Beattie, William G. Bacon | 1986-12-30 |