Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771909 | Program controlled dishwasher | Ulrich Hettenhausen, Frank Kethers, Peter Obermeier | 1998-06-30 |
| 4415449 | Vacuum filtration bench | — | 1983-11-15 |
| 4406786 | Pressure filtering device | — | 1983-09-27 |
| 4302333 | Backpressure grid plate for pressure filtration system | Klaus Cosack, Manfred Neumann | 1981-11-24 |
| D260175 | Fluid filter unit | Peter Grundmann | 1981-08-11 |
| 4229306 | Housing for single-use filter units | Klaus Cosack | 1980-10-21 |