Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471849 | Process for the recovery of zinc from a zinc sulphide ore or concentrate | — | 2002-10-29 |
| 6455019 | Process for the extraction of copper from a sulphide copper ore or concentrate | — | 2002-09-24 |
| 6383460 | Process for the recovery of nickel and/or cobalt from a concentrate | — | 2002-05-07 |