Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5922104 | Separation membranes prepared from polyamide polymers having 2,2'-bis (trifluoromethyl) biphenyl units and a process of separating gaseous mixtures using them | Hyun C. Park, Yong Soo Kang, Chul J. Lee | 1999-07-13 |