Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5161477 | Ice going ship | — | 1992-11-10 |
| 4781135 | Ship hull | — | 1988-11-01 |
| 4715305 | Ship's hull | Goran Wilkman, Timo Kotilainen, Juha Pulliainen | 1987-12-29 |
| 4578000 | Method of protection | Kimmo Juurmaa | 1986-03-25 |