Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821661 | Hydrophilic anode gas diffusion layer | Chockkalingam Karuppaiah, James F. McElroy, Jeffrey R. Boyer, Eric George Budesheim | 2004-11-23 |
| 6774637 | Method of qualifying at least a portion of a fuel cell system and an apparatus employing same | Ryan Hallum, Yaobang Wu, Chris Comi, Chockkalingam Karuppaiah | 2004-08-10 |
| 6696190 | Fuel cell system and method | — | 2004-02-24 |