Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188088 | Electronic ignition system for an internal combustion engine | Siegbert Graf vom Hagen | 1993-02-23 |
| 4978582 | Resistance-weldable composite | Ulrich Tenhaven | 1990-12-18 |
| 4942080 | Composite material for vibration damping and structural sound damping | Wolfgang Heuel, Jobst H. Meyer Zu Bexten, Rainer Muller | 1990-07-17 |
| 4351281 | Method and system for operation of a spark-ignited internal combustion engine | Istvan Geiger, Heinz Theuerkauf | 1982-09-28 |
| 4338899 | Method and apparatus for controlling the idling operation of a spark-ignited internal combustion engine | Istvan Geiger, Reinhard Bruning, Manfred Meyer | 1982-07-13 |
| 4261315 | Method and apparatus for controlling the operation of an internal combustion engine with spark ignition | Istvan Geiger | 1981-04-14 |