Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612769 | Power control system for a hot gas engine | — | 1986-09-23 |
| 4422291 | Hot gas engine heater head | — | 1983-12-27 |
| 4395879 | Hot gas engine heater head | — | 1983-08-02 |
| 4396057 | Plate heat exchanger | Rolf W. Jennfors, Yngve R. Kihlberg | 1983-08-02 |