Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076220 | Internal combustion engine | Stephen R. Speer | 1991-12-31 |
| 4483147 | Turbocharged engine having an engine speed and throttle position responsive compressor bleed valve | Stephen R. Speer, James A. Christy | 1984-11-20 |
| 4469078 | Aircraft engine-turbocharger package with bleed valve control | Stephen R. Speer, James S. Christy | 1984-09-04 |
| 4428550 | Vibration-insulating stability improving torque force device | Stephen R. Speer, James S. Christy | 1984-01-31 |
| 4424781 | Modified control linkage for supercharged inlet air to internal combustion engine | Stephen R. Speer | 1984-01-10 |
| 4399665 | Aircraft air conditioning system | Stephen R. Speer, James S. Christy, Stanley S. Lafrenz | 1983-08-23 |