Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859331 | System for exchanging a substance between fluids | Jurgen Sachtler | 1989-08-22 |
| 4840227 | Process for producing a hollow fiber mass transfer module and module produced by this process | — | 1989-06-20 |
| 4801385 | System for exchanging a substance between fluids | Jurgen Sachtler | 1989-01-31 |