Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5111656 | Arcjet nozzle having improved electrical-to-thrust conversion efficiency and high voltage operation | George W. Butler | 1992-05-12 |
| 4995231 | Performance arcjet thruster | Richard D. Smith, Steve Knowles, R. J. Cassady, William Smith | 1991-02-26 |
| 4926632 | Performance arcjet thruster | Richard D. Smith, Steve Knowles, R. J. Cassady, William Smith | 1990-05-22 |
| 4907407 | Lifetime arcjet thruster | Steve Knowles, William Smith | 1990-03-13 |