Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5143033 | Internal combustion engine having an integral cylinder head | Norbert Vogl, Michael E. Kendziora | 1992-09-01 |
| 4372433 | Combination clutch/brake mechanism | Robert K. Mitchell | 1983-02-08 |
| 4233043 | Air cleaner for internal combustion engine | — | 1980-11-11 |