Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818452 | Method of manufacturing an integral asymmetrical membrane | Klaus-Viktor Peinemann, Rudolf Waldemann | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818452 | Method of manufacturing an integral asymmetrical membrane | Klaus-Viktor Peinemann, Rudolf Waldemann | 1989-04-04 |