Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830843 | Method for controlling the quality of the coolant for fuel cell systems | Anton Sonntag, Hubert Urban | 2004-12-14 |
| 6777909 | Device for generating electric energy in a motor vehicle by means of a fuel cell and method for operating such a device | Markus Aberle | 2004-08-17 |