Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7937995 | Method for monitoring an exhaust gas purifying component | Clemens Brinkmeier, Guido Vent | 2011-05-10 |
| 6662552 | Exhaust-gas cleaning system and method with internal ammonia generation, for the reduction of nitrogen oxides | Josef Gunther, Bernd Krutzsch, Dirk Voigtlaender, 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, Dirk Voigtlaender +1 more | 2003-10-28 |
| 6318073 | Process and system for purifying exhaust gases of an internal-combustion engine | Walter Boegner, Guenter Karl, Bernd Krutzsch, Dirk Voigtlaender, Guenter Wenninger | 2001-11-20 |
| 6161377 | Internal-combustion engine system having a nitrogen oxide storage catalyst and an operating process therefor | Walter Boegner, Guenter Karl, Bernd Krutzsch, Dirk Voigtlaender, Guenter Wenninger | 2000-12-19 |
| 6119450 | Process and system for purifying exhaust gases of an internal-combustion engine | Walter Boegner, Guenter Karl, Bernd Krutzsch, Dirk Voigtlaender, Guenter Wenninger | 2000-09-19 |
| 5479775 | Air-compressing fuel-injection internal-combustion engine with an exhaust treatment device for reduction of nitrogen oxides | Michael Kraemer, Friedrich Wirbeleit, Christian Enderle, Walter Friess, Bernd Krutzsch +4 more | 1996-01-02 |