Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5291417 | Method and arrangement for determining the internal resistance of a lambda probe and for the closed-loop heating control with the aid of the internal resistance | Eberhard Schnaibel, Lothar Raff, Manfred Homeyer | 1994-03-01 |
| 5224345 | Method and arrangement for lambda control | Eberhard Schnaibel, Lothar Raff, Gunther Plapp, Cornelius Peter | 1993-07-06 |
| 5203165 | Method for the lambda control of an internal combustion engine having a catalyzer | Ernst Wild, Gunther Plapp, Lothar Raff, Eberhard Schnaibel | 1993-04-20 |
| 5140535 | Process, use of the same and apparatus for lambda value detection | Lothar Raff, Eberhard Schnaibel | 1992-08-18 |
| 5036819 | Control system for the air/fuel ratio of an internal combustion engine | Cornelius Peter, Gunther Plapp, Lothar Raff, Eberhard Schnaibel | 1991-08-06 |