Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634467 | Hydrometallurgical process for copper recovery | — | 1987-01-06 |
| 4545972 | Process for recovery of metal chloride and cuprous chloride complex salts | — | 1985-10-08 |
| 4544460 | Removal of potassium chloride as a complex salt in the hydrometallurgical production of copper | — | 1985-10-01 |
| 4536214 | Metal sulphide extraction | Archibald W. Fletcher, Harald Weber, David Naden | 1985-08-20 |