Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127661 | Fluid seal | Mark A. Kavanaugh, Wallace K. Snead | 1992-07-07 |
| 4640309 | Pilot operated poppet valve with speed control | Robert K. Hoffman, Mark A. Kavanaugh | 1987-02-03 |