Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7003941 | Thruster device responsive to solar radiation and associated methods | Patrick E. Frye, Joseph P. Carroll | 2006-02-28 |
| 6745466 | Method of making a thruster device for solar radiation | Patrick E. Frye, Joseph P. Carroll | 2004-06-08 |
| 6421998 | Thruster device responsive to solar radiation | Patrick E. Frye, Joseph P. Carroll | 2002-07-23 |
| 4781018 | Solar thermal propulsion unit | — | 1988-11-01 |