Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774637 | Method of qualifying at least a portion of a fuel cell system and an apparatus employing same | Ryan Hallum, Chris Comi, Prathap Haridoss, Chockkalingam Karuppaiah | 2004-08-10 |
| 6756150 | Fuel cell having a non-electrolytic layer | Chockkalingham Karuppaiah | 2004-06-29 |