Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D645253 | Oral care implement | Guang Sheng Guo, Kai Zhang | 2011-09-20 |
| D645254 | Oral care implement | Yan Mei Ji, Kai Zhang | 2011-09-20 |
| D643219 | Oral care implement | Guang Sheng Guo, Kai Zhang | 2011-08-16 |