Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800722 | Method and equipment for converting thermal energy to mechanical energy | Ilkka Arvola | 1989-01-31 |
| 4756158 | Method and equipment for converting thermal energy to mechanical energy | Ilkka Arvola | 1988-07-12 |