Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10060007 | Method of preparing a gold-containing solution and process arrangement for recovering gold and silver | Ville Miettinen, Riina Ahtiainen, Erkki Paatero, Kari Hietala, Mika Haapalainen | 2018-08-28 |
| 10023936 | Method of recovering copper and precious metals | Pia Sinisalo, Janne Karonen, Kari Hietala | 2018-07-17 |