Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593588 | Composite reverse osmosis membrane having active layer of aromatic polyester or copolymer of aromatic polyester and aromatic polyamide | Chang-keun Kim, Seung-Yeop Kwak | 1997-01-14 |