Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6840279 | Pneumatic switching valve for systems for lifting and lowering the body of vehicles including air suspension | Georg Sulzyc | 2005-01-11 |
| 6623016 | Control system for lifting and lowering the body of an air-suspended vehicle including level control | Georg Sulzyc | 2003-09-23 |
| 6041808 | Compressed air control device for a source of compressed air on motor vehicles | — | 2000-03-28 |
| 5871217 | Levelling valve for automatically keeping constant the vehicle height of a commercial vehicle with air suspension | — | 1999-02-16 |
| 5678900 | Unloader for a source of air under pressure on vehicles | — | 1997-10-21 |
| 5203375 | Leveling valve | — | 1993-04-20 |
| 5044399 | Switch valve | — | 1991-09-03 |
| 4673172 | Leveling valve with height limit | — | 1987-06-16 |