Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5480599 | Method of manufacturing foam beads | Thomas Leven, Michael Trager | 1996-01-02 |
| 5139712 | Method of producing microfiltration membranes from aromatic polyamides | Nils Hese, Artur MICHALSKI | 1992-08-18 |
| 4529419 | Filter for gas filtration | Massoud Karbachsch, Gunter Pradel, Fritz Reulecke | 1985-07-16 |
| 4522713 | Apparatus for static membrane filtration | Dietmar Nussbaumer, Khuong To Vinh | 1985-06-11 |
| 4490256 | Apparatus for static membrane filtration | Dietmar Nussbaumer, Khuong To Vinh | 1984-12-25 |
| 4430218 | Separating device for fluids, consisting of support plates and cut sections of a semi-permeable diaphragm | Dietmar Nussbaumer, Hans-Weddo Schmidt, Gunter Pradel, Ulrich Grummert | 1984-02-07 |
| 4392963 | Resorcinol or phloroglucinol condensation product for aqueous mixture purification | Dietmar Nussbaumer, Horst Kluver, Hans Beer | 1983-07-12 |
| 4253963 | Asymmetrical ultrafiltration membrane on the basis of cellulose triacetate | Walter Franken, Dieter Nussbaumer, Ludwig Weickhardt | 1981-03-03 |
| 4234528 | Asymmetrical ultrafiltration membrane based on cellulose hydrate | Dietmar Nussbaumer | 1980-11-18 |