Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504547 | Method of preparing perfluoroalkadiene | Hae-Seok Ji, Ook Jae Cho, Young Hoon Ahn, Bong Suk Kim, Dong Hyun Kim | 2009-03-17 |
| 7319174 | Dry-etching gas for semiconductor process and preparation method thereof | Hae-Seok Ji, Ook Jae Cho, Jong Yeol Yang, Young Hoon Ahn, Bong Suk Kim +1 more | 2008-01-15 |
| 6162955 | Manufacturing method for perfluoroethane | Doo-Chan Na, Ook Jae Cho | 2000-12-19 |