Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8507149 | Plant with high-temperature fuel cells and clamping device for a cell stack | Dirk Haberstock, Roland Denzler, Michael Tamas, Jeannette Clifford | 2013-08-13 |
| 7641995 | Heat exchanger for a heating system with integrated fuel cells for the production of electricity | Ralf Ettwein | 2010-01-05 |
| 7041406 | Fuel cell battery with an integrated heat exchanger | John Schild, Markus Jenne, Philip Holoch | 2006-05-09 |
| 6872379 | Method for the reformation of fuels, in particular heating oil | Thomas Zähringer | 2005-03-29 |
| 6645443 | Device for reforming educts containing hydrocarbons | Bernhard Vogel, Konstantin Ledjeff-Hey | 2003-11-11 |
| 6303243 | Plant with high temperature fuel cells II | — | 2001-10-16 |
| 6274260 | Plant with high temperature fuel cells I | — | 2001-08-14 |
| 5709174 | Hot water heater | Konstantin Ledjeff, Juergen Gieshoff | 1998-01-20 |
| 5464006 | Water heater | Konstantin Ledjeff, Jurgen Gieshoff | 1995-11-07 |