Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619108 | Method for identifying the state of an NOx storage catalyst | Thomas Birkhofer, Holger Leye, Ralf Moos, Carsten Plog, Thomas Ried +1 more | 2003-09-16 |
| 6571601 | Method for determining the reducing agent concentration (NH3) in the exhaust-gas flow of an internal combustion engine | Eckard Irion, Holger Leye, Mirko Smuk | 2003-06-03 |