Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343464 | Solar thermal rocket | Richard Vail DeMars, Barry Gene Miller | 2002-02-05 |
| 6290185 | Solar thermal rocket | Richard Vail DeMars, Barry John Miles, Barry Gene Miller | 2001-09-18 |
| 5247548 | Thermionic reactor | John D. Malloy, III, Richard Forsythe Rochow | 1993-09-21 |