Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9033372 | Fitting nut with adapted engaging surfaces | Dale C. Arstein, Peter C. Williams, Edward A. Pezak | 2015-05-19 |
| 8007013 | Fitting with adapted engaging surfaces | Dale C. Arstein, Peter C. Williams, Edward A. Pezak | 2011-08-30 |
| 5599165 | Friction damper for gas turbine engine blades | Yehia Elaini | 1997-02-04 |
| 5522705 | Friction damper for gas turbine engine blades | Yehia Elaini | 1996-06-04 |
| 5498137 | Turbine engine rotor blade vibration damping device | Yehia M. El-Aini, Joseph C. Burge | 1996-03-12 |