Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9322079 | Method for recovering copper from a copper sulphide ore | Stig-Erik Hultholm, Mika Haapalainen | 2016-04-26 |
| 6387240 | Method for the removal of sulfur in the nickel leaching process | — | 2002-05-14 |