Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5491976 | Vehicle emission air injection | Jeffrey A. Rock, Kenneth J. Dauer, William H. Pettit, Donald D. Stoltman | 1996-02-20 |
| 5348233 | High volume gaseous fuel injector | Roman J. Press | 1994-09-20 |
| 5327859 | Engine timing drive with fixed and variable phasing | Ronald J. Pierik | 1994-07-12 |