Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662552 | Exhaust-gas cleaning system and method with internal ammonia generation, for the reduction of nitrogen oxides | Josef Gunther, Bernd Krutzsch, Christof Schoen, Miechel Weibel, Marko Weirich | 2003-12-16 |
| 6637189 | Method for the periodically desulfating a nitrogen oxide or sulfur oxide accumulator of an exhaust gas cleaning system | Walter Boegner, Guenter Karl, Bernd Krutzsch, Stefan Renfftlen, Christof Schoen +1 more | 2003-10-28 |
| 6619108 | Method for identifying the state of an NOx storage catalyst | Thomas Birkhofer, Aleksandar Knezevic, Holger Leye, Ralf Moos, Carsten Plog +1 more | 2003-09-16 |