Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5178522 | Method and apparatus for supplying oil to a vacuum pump | Thomas Abelen, Lutz Arndt, Winfried Kaiser, Peter Muller | 1993-01-12 |
| 5156532 | Rotary vane vacuum pump with shaft seal | Lutz Arndt, Peter Muller | 1992-10-20 |
| 5066202 | Method and apparatus for delivering oil to a multi-stage pump | Hanns-Peter Berges, Berthold Fischer, Peter Mueller | 1991-11-19 |
| 4612957 | Vacuum pump and trap combination | Lutz Arndt, Paul Bachmann, Hanns-Peter Berges, Wolfgang Leier | 1986-09-23 |