Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012643 | Gas control and operation method of a fuel cell system for water and gas distribution | Peter Willimowski | 2011-09-06 |
| 7981557 | Gas control and operation method of a fuel cell system for water and gas distribution | Peter Willimowski | 2011-07-19 |
| 7890269 | Method and device for acoustic measurement of the specific density of a gaseous or liquid medium | Peter Hauptmann, Alf Püttmer | 2011-02-15 |
| 7651806 | Non-flammable exhaust enabler for hydrogen powered fuel cells | Daryl Chapman, Prem Menon, David A. Masten, Norm Dill, Daniel B. O'Connell +1 more | 2010-01-26 |
| 7479336 | Gas control and operation method of a fuel cell system for water and gas distribution | Peter Willimowski | 2009-01-20 |
| 7169491 | Flexible system for hydrogen recirculation | — | 2007-01-30 |
| 7087333 | Hydrogen recirculation without a pump | — | 2006-08-08 |
| 6149973 | Process for the coating of the flow channels of a honeycomb form catalytic converter carrier with a dispersion coating | Martin Foerster, Ewald Dittrich, Gerhard Birtigh, Walter Leibold, Bernd Mergner +2 more | 2000-11-21 |
| 4653423 | Automatic dishwasher condition indicator | — | 1987-03-31 |