Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5593738 | Process for the preparation of composite semi-permeable membrane | Dae W. Ihm, Jeong L. Kim, Byeng Hyun Kim | 1997-01-14 |
| 5547492 | Method for adsorbing and separating argon and hydrogen gases in high concentration from waste ammonia purge gas, and apparatus therefor | Soon Haeng Cho, Kuck-Tack Chue, Jong Nam Kim, Youn Jong You, Seng-Go Lee | 1996-08-20 |