Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10640706 | Etching compositions and method of etching by using the same | JunEun Lee, PyongHwa Jang, Yongil Kim, Jin Su Park | 2020-05-05 |
| 10167425 | Etching solution capable of suppressing particle appearance | Seunghyun Han, Wook Chang, Yongil Kim | 2019-01-01 |