Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10156204 | Attachment of cylinders in the housing of free-piston stirling machines | John Stanley | 2018-12-18 |
| 7600464 | Multi-piece piston for a free piston machine | Aaron M. Courtney, Jerry A Royse | 2009-10-13 |
| 6817221 | Wound regenerator method | — | 2004-11-16 |