Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061153 | Aircraft propeller assembly with blade pitch reset for ground idle | Loy D. Pace, Donald C. Stackhouse, Dennis S. Zimpfer | 1991-10-29 |
| 4904157 | Aircraft propeller assembly with blade pitch reset for ground idle | Loy D. Pace, Donald C. Stackhouse, Dennis S. Zimpfer | 1990-02-27 |
| 4650402 | Aircraft propeller with blade pitch adjustment for feather and reverse positions | Darold L. Neff | 1987-03-17 |