Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640112 | Repeating method for a wireless communication system and apparatus thereof | Byung-Kook Choi, Jong-Ok Kim, Jung-Hwan Byun, Chang Kim | 2003-10-28 |
| 6528031 | Method for preparing noble metal-supported zeolite catalyst for catalytic reduction of nitrogen oxide | Sang-Eon Park, Yong Ki Park, Chul Wee Lee, Jong-San Chang, Jung Kuk Cho | 2003-03-04 |