Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082424 | Connection system for aircraft propeller blades | Sifarat S. Husain, Robert Czachor | 1992-01-21 |
| 4907944 | Turbomachinery blade mounting arrangement | Robert Andrew Peck, Ralph A. Kirkpatrick | 1990-03-13 |
| 4728255 | Removable stiffening disk | Ralph A. Kirkpatrick | 1988-03-01 |