Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6777116 | Direct dimethyl ether fuel cells | Peter Urban, Regina Wezel, Kevin Colbow, Jiujun Zhang | 2004-08-17 |
| 6759153 | Liquid fuel cell system | Arnold Lamm, Norbert Wiesheu | 2004-07-06 |