Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810558 | Cyclone dust collecting apparatus for use in vacuum cleaner | — | 2004-11-02 |
| 6756123 | Anti-corrosion paint for steel with polyaniline | Jae-Mok Ha, Sung Nam Hwang, Jin-Woo Park, Woo-jin CHOI, Han Seob Song +4 more | 2004-06-29 |