Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780401 | Patches for teeth whitening | Ji-Young Kim, Jong Ho Kim, Sug-Youn Chang | 2004-08-24 |
| 6689344 | Patches for teeth whitening | Sug-Youn Chang, Ji-Young Kim, Jong Ho Kim | 2004-02-10 |
| 6682721 | Patches for teeth whitening | Ji-Young Kim, Jong Ho Kim, Sug-Youn Chang | 2004-01-27 |