Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646413 | Fuel cell system and method for operating the fuel cell system | Gerhard Konrad, Karsten Ledwig, Michael Niehues, Markus Walter | 2003-11-11 |
| 6521364 | Flame colorant additive for methanol for the operation of a fuel cell system | — | 2003-02-18 |