Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5297759 | Rotary aircraft passively stable in hover | Neil Tilbor, William D. Watson, Charles Sink, Jeffrey James Corsiglia, Warren E. Bosch | 1994-03-29 |
| 5082079 | Passively stable hovering system | Peter B. S. Lissaman, Charles Sink, William D. Watson | 1992-01-21 |
| 5070955 | Passively stable hovering system | Peter B. S. Lissaman, Charles Sink, William D. Watson | 1991-12-10 |
| 4368392 | Water turbine | — | 1983-01-11 |