Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6173565 | Three axis pulsed plasma thruster with angled cathode and anode strip lines | Roger M. Myers, Robert D. Osborne | 2001-01-16 |
| 4995231 | Performance arcjet thruster | Richard D. Smith, Steve Knowles, William Smith, Mark A. Simon | 1991-02-26 |
| 4926632 | Performance arcjet thruster | Richard D. Smith, Steve Knowles, William Smith, Mark A. Simon | 1990-05-22 |