Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7192324 | Method for producing a spark plug electrode | Thomas Juestel, Konrad Funk, Martin Klassen, Jochen Fischer, Andreas Benz | 2007-03-20 |
| 6869328 | Electrodes, method for production thereof and spark plugs with such an electrode | Jochen Fischer | 2005-03-22 |
| 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, Simon Schmittinger, Dietrich Trachte, Jochen Fischer | 2004-07-13 |
| 6630771 | Spark plug electrode including a profiled noble-metal part | Rainer Kocik, Stephan Weigel, Jochen Fischer, Peter Metzler, Detlef Hartmann | 2003-10-07 |
| 4268000 | Apparatus for fixing sheets on a base | — | 1981-05-19 |