Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 8163219 | Helicopter blade mandrel | Richard A. Callis, Joe White | 2012-04-24 | $18,122,000 |
| 7749421 | Helicopter blade mandrel | Richard A. Callis, Joe White | 2010-07-06 | $6,158,000 |