Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7648344 | Liquid ring pump | Bernd Wenckebach, Silke Heetsch | 2010-01-19 |
| 7563075 | Liquid ring pump | Bernd Wenckebach, Silke Heetsch | 2009-07-21 |
| 5800146 | Liquid-ring gas pump with a silencing element in the discharge space | Gunther Struck | 1998-09-01 |