Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9287840 | Parametric amplification and switched voltage signals for propellantless propulsion | — | 2016-03-15 |
| 7294224 | Magnet assembly for plasma containment | Anthony Vesci, Vince Kirchhoff, Kevin Hughes, Mark van der Pyl, Tetsuya Ishikawa +1 more | 2007-11-13 |
| 6347766 | Method and apparatus for generating propulsive forces without the ejection of propellant | Thomas Mahood | 2002-02-19 |
| 6098924 | Method and apparatus for generating propulsive forces without the ejection of propellant | Thomas Mahood | 2000-08-08 |
| 5280864 | Method for transiently altering the mass of objects to facilitate their transport or change their stationary apparent weights | — | 1994-01-25 |