Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7682581 | Method for the removal of copper from a zinc sulphate solution | Leena Lehtinen, Marko Lahtinen, Matti Vuokko | 2010-03-23 |
| 7559971 | Method for removal of silver from a copper chloride solution | Olli Hyvärinen | 2009-07-14 |