Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7134162 | Toothbrush having soft and hard bristles together | Sung-Wook Kwon | 2006-11-14 |
| 6090488 | Tapered toothbrush bristle and toothbrush with said bristles, and methods for producing the same | — | 2000-07-18 |