Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5810284 | Aircraft | Bart Dean Hibbs, Walter R. Morgan, Robert L. Radkey | 1998-09-22 |
| 5082079 | Passively stable hovering system | Herman M. Drees, Charles Sink, William D. Watson | 1992-01-21 |
| 5070955 | Passively stable hovering system | Herman M. Drees, Charles Sink, William D. Watson | 1991-12-10 |
| 5035382 | Rapid assembly aircraft for ground surveillance | W. Ray Morgan, Martyn Cowley, Charles Sink, William D. Watson | 1991-07-30 |
| 4206892 | Lightweight aircraft | Paul B. MacCready, Jr., James Burke | 1980-06-10 |