Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8163219 | Helicopter blade mandrel | Richard A. Callis, Joe White | 2012-04-24 |
| 7749421 | Helicopter blade mandrel | Richard A. Callis, Joe White | 2010-07-06 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8163219 | Helicopter blade mandrel | Richard A. Callis, Joe White | 2012-04-24 |
| 7749421 | Helicopter blade mandrel | Richard A. Callis, Joe White | 2010-07-06 |