Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6971937 | Method of manufacturing a spark plug for an internal combustion engine | Lars Menken, Bernd Reinsch, Dietrich Trachte, Klaus Czerwinski | 2005-12-06 |
| 6888293 | Protective coating for ignition device | Manfred Roessler, Thomas Jaeger, Christoph Brehm | 2005-05-03 |