Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4522173 | Internal combustion engine usable with a high vaporization heat fuel | — | 1985-06-11 |
| 4216744 | Engine whose fuel is a product other than a petroleum product | Roger Oswald | 1980-08-12 |