Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803143 | Gas diffusion structures and gas diffusion electrodes for polymer electrolyte fuel cells | Armin Bayer, Knut Fehl, Volker Bänisch, Thomas Lehmann | 2004-10-12 |
| 6720104 | PEM fuel cell stack | Armin Bayer, Heike Kuhnhold, Udo Stenke | 2004-04-13 |