Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4640309 | Pilot operated poppet valve with speed control | Mark A. Kavanaugh, David C. Franson | 1987-02-03 |
| 4353290 | Pneumatic control valve and circuit | Mark A. Kavanaugh | 1982-10-12 |
| 4243072 | Three position selector valve | Mark A. Kavanaugh | 1981-01-06 |