Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7442745 | Aminomethyl polystyrene resin and preparation process for the same | Yoon-Sik Lee, Tae Kyung LEE | 2008-10-28 |
| 6875822 | Process for preparing tritylated polystyrene resin | Tae Kyung LEE, Ju Han Kim | 2005-04-05 |
| 6369169 | Modified polystyrene spherical, resin and process for decontaminating waste water by using the same | Yoon-Sik Lee | 2002-04-09 |