Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9157358 | Exhaust gas system of an internal combustion engine, and method for preparing a reducing agent which is introduced into the internal combustion engine exhaust gas | Thomas Beckmann, Tillmann Braun, Frank Duvinage, Helmut Herwig, Bernhard Kobiela +3 more | 2015-10-13 |
| 7765797 | Exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and associated operating method | Frank Duvinage, Christian Goerigk, Berthold Keppeler, Arno Nolte, Markus Paule | 2010-08-03 |
| 7662197 | Method of operating an exhaust gas cleaning unit with particle filter and nitrogen oxygen store | Frank Duvinags, Stefan Kurze, Thomas Liebscher, Arno Nolte, Markus Paule +1 more | 2010-02-16 |
| 5404857 | Method for controlling a two-stroke internal-combustion engine | — | 1995-04-11 |
| 5073307 | Membrane carburetor for an internal combustion engine of a handheld portable tool | Michael Langer | 1991-12-17 |