Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7247280 | Multi-bed catalyzer | Georg Wirth, Ulrich Sigel, Markus Alles | 2007-07-24 |
| 7127884 | Muffler with an integrated catalytic converter | Rudolf Buhmann, Marcus Werni | 2006-10-31 |
| 7004283 | Multiple-chambered exhaust muffler | Herbert Schumacher, Norbert Klein, Helmut Neu, Stephan Giebel | 2006-02-28 |
| 6967006 | Method for mounting and insulating ceramic monoliths in an automobile exhaust system and a mounting produced according to this method | Georg Wirth, Peter Zacke | 2005-11-22 |
| 6938729 | Exhaust gas system | Ulrich Sigel | 2005-09-06 |
| 6926074 | Exhaust gas cooler | — | 2005-08-09 |
| 6158214 | Exhaust silencer arrangement | Karl-Heinz Kempka, Thomas Nording, Peter Stratz | 2000-12-12 |
| 5912441 | Absorption/reflection exhaust muffler | — | 1999-06-15 |
| 5755025 | Process for manufacturing catalytic converters, especially bodies of motor vehicle catalytic converters of modular design | Georg Wirth, Klaus F. Hoffmann | 1998-05-26 |
| 5683660 | Method for uniting an exhaust treatment body with its housing and an exhaust treatment apparatus | Georg Wirth, Peter Zacke | 1997-11-04 |
| 5180408 | Device for treating the exhaust gases of internal combustin engines with two exhaust gas treatment bodies arranged at spaced locations | Georg Wirth, Peter Zacke | 1993-01-19 |
| 5094073 | Device for the catalytic cleaning or other treatment of internal combustion engine exhaust gases with two exhaust gas treating bodies and a protective ring between them | Georg Wirth, Peter Zacke | 1992-03-10 |
| 4927608 | Device for catalytic cleaning of motor vehicle exhaust gases | Peter Zacke, Georg Wirth | 1990-05-22 |
| 4669261 | Exhaust gas treatment device for internal combustion engines | Walter ttle | 1987-06-02 |
| 4576799 | Filtering and post-combustion device for waste gases | Walter ttle, Herbert Klein | 1986-03-18 |
| 4247520 | Exhaust muffler with catalyst | — | 1981-01-27 |