Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227048 | Backwashable filter device having means to add additional fluids to filtrate backwash fluid | Heinrich Seibel, Rudi Hermann | 1993-07-13 |
| 4753118 | Driving arrangement, especially for a liquid metering pump | — | 1988-06-28 |
| 4321938 | Dosing device | — | 1982-03-30 |