Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6918365 | System having an internal combustion engine and a fuel cell and method of making and using same | Franz-Josef Wetzel | 2005-07-19 |
| 6874314 | Vehicle with internal combustion engine, fuel cell and catalyst | Franz-Josef Wetzel | 2005-04-05 |