Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684864 | Method for removing oil from crankcase ventilation gases and devices for implementing said method | Sieghard Pietschner | 2004-02-03 |
| 6626163 | Oil separator for de-oiling crankcase ventilation gases of an internal combustion engine | Sieghard Pietschner | 2003-09-30 |
| 6279556 | Oil separator for removing oil from the crankcase ventilation gases of an internal combustion engine | Sieghard Pietschner | 2001-08-28 |