Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6058896 | Variable valve control for an internal combustion engine | — | 2000-05-09 |
| 4495115 | Downdraft carburetor for internal combustion engines | Roland Adam, Hans-Otto Derndinger | 1985-01-22 |