Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9689344 | Double-acting modular free-piston stirling machines without buffer spaces | — | 2017-06-27 |
| 7437878 | Multi-stage pulse tube cryocooler with acoustic impedance constructed to reduce transient cool down time and thermal loss | Kyle Wilson | 2008-10-21 |
| 7434409 | Pulse tube cooler having ¼ wavelength resonator tube instead of reservoir | — | 2008-10-14 |
| 7017344 | Machine spring displacer for Stirling cycle machines | Roberto O. Pellizzari, Laurence B. Penswick | 2006-03-28 |
| 4183214 | Spring and resonant system for free-piston Stirling engines | William T. Beale, James Gary Wood | 1980-01-15 |