Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10495028 | Thermoelectric rocket propellant tank pressurization system | Mark Sipperley | 2019-12-03 |
| 5161954 | De-sludging systems | John Matheson, Peter Hassall | 1992-11-10 |
| 5104300 | Liquid additive metering | John Matheson, Peter Hassall | 1992-04-14 |