Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6423185 | Process of surface treatment for faces that become contaminated in a paper or board machine | Pentti Lehtonen, Petri Sorsa | 2002-07-23 |
| 6203895 | Wear resisting parts for process valves | Lutz-Michael Berger, Kai Laitinen, Petri Vuoristo | 2001-03-20 |