Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9028990 | Fuel cell emergency system | Ralf-Henning Stolte, Volker Piezunka | 2015-05-12 |
| 8137854 | Fuel cell system as a primary electrical energy supply for aircraft | — | 2012-03-20 |