Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4201748 | Process for thermal-activation of chalcopyrite-pyrite concentrates | Godefridus M. Swinkels | 1980-05-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4201748 | Process for thermal-activation of chalcopyrite-pyrite concentrates | Godefridus M. Swinkels | 1980-05-06 |