Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236586 | Apparatus for the treatment of fluids | Roland Antoni, Manfred Raff, Kurt Spranger, Josef Volm | 1993-08-17 |
| 4722795 | Polyamide hollow fiber filtration membrane having barrier layer | Hermann Gohl, Gunther F. Geiling, Claes-Ake Gullberg | 1988-02-02 |
| 4565631 | Backflow-type self-cleaning filter | Klaus-Michael Bitzer, Klaus Eimer, Klaus Grobe, Dieter Patzig | 1986-01-21 |