Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10221493 | Method for recovery of copper and zinc | Erkki Paatero, Mika Haapalainen | 2019-03-05 |
| 10060007 | Method of preparing a gold-containing solution and process arrangement for recovering gold and silver | Ville Miettinen, Riina Ahtiainen, Kari Valkama, Erkki Paatero, Mika Haapalainen | 2018-08-28 |
| 10023936 | Method of recovering copper and precious metals | Kari Valkama, Pia Sinisalo, Janne Karonen | 2018-07-17 |
| 9777345 | Method and apparatus for acid granulation of matte | Tiina RANKI | 2017-10-03 |