Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8474246 | Method of operating a particle filter in the exhaust system of a motor vehicle's internal combustion engine | Andreas Hertzberg | 2013-07-02 |
| 6872365 | Exhaust gas cleaning system having internal ammonia production for reducing nitrogen oxides | Martin Hartweg, Brigitte Konrad, Bernd Krutzsch, Michel Weibel, Guenter Wenninger | 2005-03-29 |
| 6696389 | Process and apparatus for cleaning a gas flow | Rolf-Dirc Roitzheim, Martin Hartweg, Andrea Seibold, Thomas Fetzer, Bernd Morsbach | 2004-02-24 |
| 6637189 | Method for the periodically desulfating a nitrogen oxide or sulfur oxide accumulator of an exhaust gas cleaning system | Guenter Karl, Bernd Krutzsch, Stefan Renfftlen, Christof Schoen, Dirk Voigtlaender +1 more | 2003-10-28 |
| 6574955 | Method and apparatus for desulfurizing a nitrogen oxide adsorber | Doris Schröder, Dirk Voigtlander, Michel Weibel, Gunter Wenninger, Kirsten Hardenberg +6 more | 2003-06-10 |
| 6408620 | Exhaust-gas cleaning system with nitrogen oxide accumulator catalyst and sulphur oxide trap and operating method therefor | Josef Gunther, Hans-Peter Holzt, Bernd Krutzsch, Stefan Renfftlen, Christof Schon +3 more | 2002-06-25 |
| 6318073 | Process and system for purifying exhaust gases of an internal-combustion engine | Guenter Karl, Bernd Krutzsch, Christof Schoen, Dirk Voigtlaender, Guenter Wenninger | 2001-11-20 |
| 6170259 | Emission control system for an internal-combustion engine | Karl-Ernest Haak, Bernd Krutzsch, Dirk Voigtlaender, Guenter Wenninger, Friedrich Wirbeleit | 2001-01-09 |
| 6168764 | Method and catalyst for reducing pollutants in gases | Christine De Saint-Aubin | 2001-01-02 |
| 6161377 | Internal-combustion engine system having a nitrogen oxide storage catalyst and an operating process therefor | Guenter Karl, Bernd Krutzsch, Christof Schoen, Dirk Voigtlaender, Guenter Wenninger | 2000-12-19 |
| 6119450 | Process and system for purifying exhaust gases of an internal-combustion engine | Guenter Karl, Bernd Krutzsch, Christof Schoen, Dirk Voigtlaender, Guenter Wenninger | 2000-09-19 |
| 6082100 | Method for operating a multicylinder internal combustion engine | Frank Duvinage, Walter Friess, Karl-Ernst Haak, Bernd Krutzsch, Rudolf Maly +7 more | 2000-07-04 |
| 5965098 | Methods and devices for scrubbing gases | Rolf-Dirc Roitzheim, Martin Hartweg, Andrea Seibold, Thomas Fetzer, Bernd Morsbach | 1999-10-12 |
| 5921076 | Process and apparatus for reducing nitrogen oxides in engine emissions | Bernd Krutzsch, Christian Goerigk, Stefan Kurze, Gunter Wenninger, Friedrich Wirbeleit | 1999-07-13 |
| 5910097 | Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides | Karl-Ernst Haak, Bernd Krutzsch, Wim Verrelst, Dirk Voigtlaender, Guenter Wenninger +1 more | 1999-06-08 |
| 5851501 | Process for absorbing and desorbing nitrogen oxides in exhaust gases | Bernd Krutzsch, Andrea Seibold, Leonhard Walz, Martina Heinau, Martin Hartweg +1 more | 1998-12-22 |
| 5771686 | Method and apparatus for operating a diesel engine | Stefan Pischinger, Christof Schon, Michel Weibel, Bernd Krutzsch, Rudiger Pfaff | 1998-06-30 |
| 5586433 | Process and apparatus for selective catalyzed no-reduction in oxygen-containing exhaust gases | Michael Kraemer, Bernd Krutzsch, Guenter Wenninger, Friedrich Wirbeleit, Werner Weisweiler | 1996-12-24 |
| 5457958 | Method and apparatus for reducing nitrogen oxides in the exhaust gas of an internal combustion engine | Karl-Ernst Haak, Bernd Krutzsch, Gunter Wonninger | 1995-10-17 |