Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10351930 | Silver recovery by ion exchange | Mika Haapalainen, Mikko Tyster, Sami Virolainen | 2019-07-16 |
| 10174400 | Method for recovering metals | Tuukka Kotiranta | 2019-01-08 |
| 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 |