Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4374487 | Pilot with cantilevered spring | Neil H. Akkerman | 1983-02-22 |
| 4349043 | Method and apparatus for prevention of over-pressurization of a pressure responsive device | — | 1982-09-14 |
| 4325402 | Bimodal, non-venting pneumatic relay | Neil H. Akkerman | 1982-04-20 |