Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10155903 | Metal etchant compositions and methods of fabricating a semiconductor device using the same | Hyosan Lee, Yongsun Ko, Kyoungseob Kim, Jihoon Jeong, Chen Lin +1 more | 2018-12-18 |
| 9941110 | Manufacturing method and fluid supply system for treating substrate | Jung-Min Oh, Hyosan Lee, Yongsun Ko, Kyoungseob Kim, Seokhoon Kim +2 more | 2018-04-10 |
| 9934959 | Method and apparatus for purifying cleaning agent | Yong-Jhin Cho, Jung-Min Oh, Yongmyung Jun, Yongsun Ko, Hyosan Lee | 2018-04-03 |