Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139712 | Method of producing microfiltration membranes from aromatic polyamides | Horst Perl, Artur MICHALSKI | 1992-08-18 |
| 4426204 | Process for the marking of carrierless polymeric membranes and asymmetric carrierless polymeric membrane | Alfred Seeling, Manfred Weisweiler | 1984-01-17 |