Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7114922 | Turbine shell jacking pockets | Andrew John Tomko, Dennis Roberts | 2006-10-03 |
| 5791592 | Helicopter with coaxial counter-rotating dual rotors and no tail rotor | Herbert M. Nolan | 1998-08-11 |