Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7262547 | Spark plug element having defined dimensional parameters for its insulator component | Thomas Kaiser, Dirk Scholz | 2007-08-28 |
| 6762539 | Spark plug for an internal combustion engine and method for production of a middle electrode for an internal combustion engine spark plug | Heinz Ulm, Simon Schmittinger, Dietrich Trachte, Jochen Fischer | 2004-07-13 |
| 6759796 | Compact spark plug and method for its production | Simon Schmittinger, Dietrich Trachte, Walter Benedikt | 2004-07-06 |
| 5952770 | Spark plug for internal combustion engine | Roland Mueller, Richard Adamczuk, Werner Herden, Manfred Vogel, Walter Benedikt +5 more | 1999-09-14 |
| 5818152 | Spark plug for an internal combustion engine | Gunter Bolduan, Jurgen Wurth, Oswald Glaser, Hermann Kersting, Roland Muller | 1998-10-06 |
| 5731654 | Spark plug having a creepage spark gap | Walter Benedikt, Manfred Vogel, Werner Herden | 1998-03-24 |
| 5612586 | Spark plug for internal combustion engines | Walter Benedikt, Dietrich Trachte, Hermann Kersting, Roland Mueller, Jochen Fischer | 1997-03-18 |
| 4597849 | Gas sensor suitable for engine exhaust gases | Joachim Burkhardt, Manfred Dreyer, Helmut Weyl | 1986-07-01 |
| 4220123 | Subpressure limiter for a fuel injection system | Eberhard Utz, Siegfried Fehrenbach, Richard Bertsch, Heinrich Knapp | 1980-09-02 |