Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Simon Schmittinger, Dietrich Trachte | 2004-07-13 |
| 6694901 | Buttonhole sewing machine | Karsten Filges, Theodor Janocha | 2004-02-24 |
| 6684797 | CNC controlled buttonhole sewing machine | Thomas Noltge | 2004-02-03 |
| 6684798 | Buttonhole sewing machine | Karsten Filges, Theodor Janocha | 2004-02-03 |