Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829200 | Multirotor aircraft with collective for autorotation | Frank B. Stamps | 2020-11-10 |
| 10696391 | Extended range quad tiltrotor aircraft | Alan Carl Ewing, Mark Loring Isaac, Frank B. Stamps | 2020-06-30 |