Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739521 | Headlight cleaning system operating exclusively by spraying with washing liquid | Joachim Bandemer, Torsten Hahn | 2004-05-25 |
| 6692144 | Method for determining the freezing temperature of a liquid, and a device intended therefore | Sven Petzold | 2004-02-17 |