Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10351930 | Silver recovery by ion exchange | Kari Valkama, Mika Haapalainen, Mikko Tyster | 2019-07-16 |
| 8974673 | Method of regeneration an organic extraction solution that has been used in a liquid-liquid extraction process | Erkki Paatero, Kai Jyrkkä | 2015-03-10 |