Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504547 | Method of preparing perfluoroalkadiene | Ook Jae Cho, Jae-Gug Ryu, Young Hoon Ahn, Bong Suk Kim, Dong Hyun Kim | 2009-03-17 |
| 7319174 | Dry-etching gas for semiconductor process and preparation method thereof | Ook Jae Cho, Jae-Gug Ryu, Jong Yeol Yang, Young Hoon Ahn, Bong Suk Kim +1 more | 2008-01-15 |
| 6841705 | Method of producing difluoromethane | Iikubo Yuichi, Ook Jae Cho | 2005-01-11 |