Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925983 | Fuel injection valve spark plug combination | Werner Herden, Dieter Volz, Gernot Wuerfel, Anja Melsheimer, Rainer Norgauer +1 more | 2005-08-09 |
| 6871630 | Combined fuel injection valve/ignition plug | Werner Herden, Dieter Volz, Gernot Wuerfel, Anja Melsheimer, Rainer Norgauer +1 more | 2005-03-29 |
| 6832588 | Fuel injector-spark plug combination | Werner Herden, Dieter Volz, Gernot Wuerfel, Anja Melsheimer, Rainer Norgauer +1 more | 2004-12-21 |
| 6819030 | Spark plug | Hans-Joerg Lipp | 2004-11-16 |
| 6762539 | Spark plug for an internal combustion engine and method for production of a middle electrode for an internal combustion engine spark plug | Dittmar Klett, Heinz Ulm, Dietrich Trachte, Jochen Fischer | 2004-07-13 |
| 6759796 | Compact spark plug and method for its production | Dittmar Klett, Dietrich Trachte, Walter Benedikt | 2004-07-06 |