Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5152894 | Semipermeable membrane made from a homogeneously miscible polymer blend | Michael Haubs, Willi Kreuder, Claus-Peter Krieg | 1992-10-06 |
| 5082565 | Semipermeable membrane made from polyether ketones | Michael Haubs, Hansotto Drotloff | 1992-01-21 |
| 5009824 | Process for preparing an asymmetrical macroporous membrane polymer | Axel Walch, Dieter Beissel | 1991-04-23 |
| 4720343 | Macroporous asymmetrical hydrophilic membrane made of a synthetic polymer | Axel Walch, Dieter Beissel | 1988-01-19 |
| 4524155 | Open-cell/microporous molded article | Axel Walch, Walter Seifried, Wolfgang Michel, Jurgen Kuhls | 1985-06-18 |