Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7357144 | Contamination control apparatus, management system and related methods | Chang-Su Lim, Sun-Wook Park | 2008-04-15 |
| 7258728 | Apparatus and method for cleaning air | Chang-Su Lim, Yo-Han Ahn, Sun-Wook Park | 2007-08-21 |
| 6849100 | Fresh air ducts including downstream filters for clean rooms | Chang-Su Lim, Jung-Sung Hwang | 2005-02-01 |