Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4737286 | Microfiltration membrane filter | Joachim Fischer | 1988-04-12 |
| 4627992 | Process for the production of filter elements based on aromatic polyamide | Anna-Luise Bourguignon, Joachim Fischer | 1986-12-09 |
| 4567009 | Production of microfiltration membrane filter | Joachim Fischer | 1986-01-28 |