Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6682839 | Method and apparatus for controlling the temperature within an electrochemical fuel cell | David P. Wilkinson, Joy Roberts, Jean St-Pierre, Jürgen Stumper, Joerg Zimmermann | 2004-01-27 |