Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591609 | Regenerator for a Stirling Engine | Dean Kamen, Christopher C. Langenfeld, Kingston Owens | 2003-07-15 |
| 6543215 | Thermal improvements for an external combustion engine | Christopher C. Langenfeld, Michael G. Norris, Ryan K. LaRocque, Stanley B. Smith, III | 2003-04-08 |