Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9027193 | Oral care implement | Wen Jin Xi, Jian Rong Zhou | 2015-05-12 |
| 8959696 | Oral care implement | Wen Jin Xi, Jian Rong Zhou | 2015-02-24 |
| D679504 | Oral care implement | David K. Lee, Ding Xiang Ji, Ji Yan Mei, Zhang Ran, Xi Wen Jin | 2013-04-09 |
| D676245 | Oral care implement | Xi Wen Jin, Ding Xiang Ji, Ji Yan Mei | 2013-02-19 |
| 7705678 | Amplifier using impedance circuit for canceling cutoff | Masato Yoshioka | 2010-04-27 |