Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824145 | Level adjusting unit with a compressed air reservoir and a tire inflation connector | — | 2004-11-30 |
| 6685174 | Closed level control system for a vehicle | Helge Westerkamp | 2004-02-03 |