Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6821661 | Hydrophilic anode gas diffusion layer | Chockkalingam Karuppaiah, James F. McElroy, Jeffrey R. Boyer, Eric George Budesheim | 2004-11-23 | $2,800,000 |
| 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 | $5,699,000 |
| 6696190 | Fuel cell system and method | — | 2004-02-24 | $4,185,000 |