Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7568489 | Method of and apparatus for eluting impurities | Sung Jae Lee | 2009-08-04 |
| 5900124 | Method and apparatus of concentrating chemicals for semiconductor device manufacturing | Yong-woo Her, Heoung-bin Kim, Byoung-Woo Son | 1999-05-04 |