Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12241552 | Turboexpander labyrinth seal | John Park, Asit Singhal, Geoff Legg | 2025-03-04 |
| 11686390 | Turboexpander labyrinth seal | John Park, Asit Singhal, Geoff Legg | 2023-06-27 |
| 9945517 | Portable gas filling system | Craig J. Fennessy | 2018-04-17 |
| 6742337 | Waste heat recovery system | Lance G. Hays | 2004-06-01 |