Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6941742 | Method and device for reducing the number of particles in an exhaust gas | Ronald Neufert, Frank Witzel, Stefan Fischer | 2005-09-13 |
| 6589495 | Process for reducing the levels of halogenated hydrocarbons | Stefan Fischer, Frank Witzel | 2003-07-08 |
| 6576585 | Process for producing a catalyst body | Stefan Fischer, Ronald Neufert, Frank Witzel | 2003-06-10 |
| 6569394 | Catalyst body and process for breaking down nitrogen oxides | Stefan Fischer, Frank Witzel | 2003-05-27 |
| 6475952 | PROCESS FOR PRODUCING A CATALYTICALLY ACTIVE MATERIAL, CATALYTIC CONVERTER HAVING A CATALYTICALLY ACTIVE MATERIAL PRODUCED IN THIS MANNER, AND USE OF THE CATALYTIC CONVERTER TO BREAK DOWN DIOXINS AND/OR FURANS | Stefan Fischer, Frank Witzel | 2002-11-05 |
| 6442932 | Method and device for the catalytic reduction of nitrogen oxides contained in the off-gas from a combustion system | Lothar Hofmann, Manfred Weigl, Gerhard Wissler | 2002-09-03 |
| 6408619 | Method and device for reducing the nitrogen oxides in the exhaust gas of a combustion system | Gerhard Wissler, Manfred Weigl, Lothar Hofmann | 2002-06-25 |
| 6258436 | Catalyst body | Andreas Girschik, Robert Kleuderlein, Frank Witzel | 2001-07-10 |
| 6223526 | Dual compartment fuel storage tank | Gerhard Wissler, Manfred Weigl, Lothar Hofmann | 2001-05-01 |
| 6209313 | Method of reducing the Nox content in the exhaust gas of a diesel internal combustion engine | Gerhard Wissler, Lothar Hofmann, Manfred Weigl | 2001-04-03 |
| 6082102 | NO.sub.x reduction system with a device for metering reducing agents | Gerhard Wissler, Lothar Hofmann, Manfred Weigl, Wieland Mathes, Ronald Neufert +2 more | 2000-07-04 |