Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6408620 | Exhaust-gas cleaning system with nitrogen oxide accumulator catalyst and sulphur oxide trap and operating method therefor | Walter Boegner, Josef Gunther, Bernd Krutzsch, Stefan Renfftlen, Christof Schon +3 more | 2002-06-25 |