Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4469078 | Aircraft engine-turbocharger package with bleed valve control | Stephen R. Speer, Hugh G. Evans | 1984-09-04 |
| 4428550 | Vibration-insulating stability improving torque force device | Hugh G. Evans, Stephen R. Speer | 1984-01-31 |
| 4399665 | Aircraft air conditioning system | Hugh G. Evans, Stephen R. Speer, Stanley S. Lafrenz | 1983-08-23 |