Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823838 | Switching assembly for closing intake lines of an air intake device and intake device incorporating same | Herbert Pietrowski, Guenter Steiner | 2004-11-30 |
| 6807935 | Intake pipe for an internal combustion engine comprising at least two welded shells | Herbert Pietrowski, Arthur Klotz, Matthias Teschner | 2004-10-26 |
| 6752115 | Air intake device for an internal combustion engine | Robert Fiesel | 2004-06-22 |
| 6732695 | Intake manifold for an internal combustion engine | Herbert Pietrowski, Thomas Jessberger, Helmut Neuschwander, Eckehard Mandel | 2004-05-11 |
| 6674266 | Method for determining the operating state of an energy-storage battery | — | 2004-01-06 |