Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9556530 | Equipment and method for electrolytic recovery of metal | Ville Nieminen, Henri Virtanen | 2017-01-31 |
| 8551306 | Permanent cathode | Henri Virtanen, Tuomo Kivistö, Ismo Virtanen | 2013-10-08 |
| 8303795 | Method for arranging electrodes in an electrolytic process and an electrolytic system | Henri Virtanen, Olli Jarvinen, Ilkka Laitinen | 2012-11-06 |
| 8062498 | Method of manufacturing a cathode plate, and a cathode plate | — | 2011-11-22 |
| 6736970 | Arrangement for treating solids settled on the bottom of an electrolytic tank | Tuomo Kivistö, Raimo Syväluoma, Jari Stenroos | 2004-05-18 |