Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9416708 | Method for determining HC-conversion efficiency of a catalyst, a diagnostic device configured to carry out the method as well as a motor vehicle having such a catalyst | Christfried Schroeder | 2016-08-16 |
| 7481104 | Method and device for diagnosing the dynamic characteristics of a lambda probe used for the lambda regulation of individual cylinders | Eberhard Schnaibel, Andreas Koring, Ruediger Deibert | 2009-01-27 |
| 6901742 | Method for detecting the state of a catalytic converter system | Axel Lang, Axel Wachtendorf, Uwe Kammann, Harald Loeck, Rudolf Krebs +2 more | 2005-06-07 |
| 6880328 | Exhaust system of a multi-cylinder internal combustion engine and a method of cleaning an exhaust gas | Achim Donnerstag, Frank Wittig | 2005-04-19 |
| 6043660 | Circuit arrangement for measuring an ion current in a combustion chamber of an internal combustion engine | Ulrich Bahr | 2000-03-28 |
| 5914604 | Circuit arrangement for measuring an ion current in a combustion chamber of an internal combustion engine | Ulrich Bahr | 1999-06-22 |
| 5817933 | Sensor arrangement for measuring the mass of a flowing fluid | — | 1998-10-06 |
| 5758629 | Electronic ignition system for internal combustion engines and method for controlling the system | Ulrich Bahr | 1998-06-02 |
| 5656938 | Temperature compensation in mass flow sensors employing the hot-wire anemometer principle | Thomas Bennohr | 1997-08-12 |
| 5625289 | Magnetic device for detecting angle of rotation | Roger Pohlmann | 1997-04-29 |
| 5506478 | AC ignition system with optimized electronic circuit | — | 1996-04-09 |