Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8551306 | Permanent cathode | Lauri Palmu, Henri Virtanen, Tuomo Kivistö | 2013-10-08 |
| 6342136 | Busbar construction for electrolytic cell | Henri Virtanen, Tuomo Kivistö, Tom Marttila | 2002-01-29 |
| 6187156 | Anode for electrolytic refining | Henri Virtanen, Tuomo Kivistö, Tom Marttila | 2001-02-13 |
| 5420012 | Method for the detection of reactive conditions | Paul Partanen, Sari Ylatupa, Raili Paasivuo | 1995-05-30 |
| 4224850 | Apparatus for cutting a blank sheet into strips and for stacking the strips in adjoining compartments separated by partitions | Ismo Holmi | 1980-09-30 |