Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7556873 | Fuel cell system | — | 2009-07-07 |
| 6955861 | Fuel cell system, and method of protecting a fuel cell from freezing | Koudai Yoshizawa, Akihiro Iiyama, Patrick L. Hagans | 2005-10-18 |