Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5770170 | Recovery of zinc from sulphidic concentrates | Michael J. Collins | 1998-06-23 |
| 5730776 | Hydrometallurgical process for the extraction of copper from sulphidic concentrates | Michael J. Collins | 1998-03-24 |
| 5651947 | Recovery of zinc from sulphidic concentrates | Michael J. Collins | 1997-07-29 |