Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461751 | Method and apparatus for operating a fuel cell | Gustav Boehm, David P. Wilkinson, Shanna Knights, Nicholas Fletcher | 2002-10-08 |
| 5688610 | Device for generating energy | Richard Spaeh, Klaus-Peter Zurell, Edmund Wegmann, Joerg Heitzer | 1997-11-18 |