Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557955 | Shaped articles which are composed of a copolymer containing fluorine groups and which are selectively permeable to liquids and gases and are simultaneously oleophobic and oleophilic | Axel Walch, Walter Seifried, Wolfgang Michel, Jurgen Kuhls | 1985-12-10 |
| 4499211 | Open-cell/microporous molded article | Axel Walch, Walter Seifried, Wolfgang Michel, Jurgen Kuhls | 1985-02-12 |
| 4354938 | Hemodialysis membrane and process and apparatus for using same in hemodialysis | Axel Walch, Max Bytzek, Klaus-Dieter Hammer | 1982-10-19 |
| 4229291 | Permselective membrane and use | Axel Walch, Dieter Beissel | 1980-10-21 |