Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6607702 | Photocatalyst filter, method for fabricating the same and air cleaner thereof | Kwang Ok Kang, Young-ki Hong, Kyong Wook Heo, Soo Yeon Shin, Jung Hun Kang +2 more | 2003-08-19 |
| 6576589 | Method for making anatase type titanium dioxide photocatalyst | Hai-sub Na, Woo Suk Choi, Chul Han Kwon, Young-ki Hong, Kyeong-Wook Heo +2 more | 2003-06-10 |