Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4383923 | Semipermeable membranes | — | 1983-05-17 |
| 4269967 | Semipermeable membranes of aromatic disulfimide containing polyamides | Gerhard D. Wolf, Hans J. Rosenkranz | 1981-05-26 |
| 4252652 | Process of using a semi-permeable membrane of acrylonitrile copolymers | Hans J. Rosenkranz, Gerhard D. Wolf, Francis Bentz | 1981-02-24 |
| 4221903 | Semipermeable membranes of heterocyclic copolyamides | Gerhard D. Wolf, Francis Bentz, Hans Egon Kunzel | 1980-09-09 |
| 4217227 | Semipermeable membranes of copolyamides | Gerhard D. Wolf, Francis Bentz, Hans Egon Kunzel | 1980-08-12 |