Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742761 | Miniature latching valve | A. David Johnson | 2004-06-01 |
| 4745749 | Solar powered free-piston stirling engine | — | 1988-05-24 |
| 4642988 | Solar powered free-piston Stirling engine | — | 1987-02-17 |
| 4512150 | Constant temperature element | — | 1985-04-23 |
| 4488853 | Fluid pressure ratio transformer system | — | 1984-12-18 |
| 4454426 | Linear electromagnetic machine | — | 1984-06-12 |
| 4446698 | Isothermalizer system | — | 1984-05-08 |
| 4249378 | Thermally actuated heat pump | — | 1981-02-10 |