Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071085 | Gas ballast system for a multi-stage positive displacement pump | — | 2000-06-06 |
| 5166566 | Magnetic bearings for a high speed rotary vacuum pump | Helmut Bernhardt | 1992-11-24 |
| 4424633 | Apparatus for heating and drying articles | Helmut Strzala | 1984-01-10 |
| 4423766 | Vacuum condensation apparatus | Helmut Strzala | 1984-01-03 |
| 4320653 | Method of and apparatus for measuring the rate of leak | — | 1982-03-23 |
| 4242942 | Hydraulic positioner with feedback device | Reiner Bartholomaus, Wolfgang Eberhard, Hans-Dieter Kokus, Herbert Lembke, Heinz Schulte | 1981-01-06 |