Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4381873 | In situ roasting and leaching of sulfide minerals | Wilhelmus G. J. Huijnen | 1983-05-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4381873 | In situ roasting and leaching of sulfide minerals | Wilhelmus G. J. Huijnen | 1983-05-03 |