Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5096575 | Disposable filter unit | — | 1992-03-17 |
| 4874513 | Disposable filter unit with filter support means at both sides of the filter element | Asok Chakraborty, Herbert Urlaub, Franz Grof | 1989-10-17 |
| 4302333 | Backpressure grid plate for pressure filtration system | Wolfgang Hein, Manfred Neumann | 1981-11-24 |
| 4229306 | Housing for single-use filter units | Wolfgang Hein | 1980-10-21 |