Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6993803 | Electric toothbrushes and packages containing same | — | 2006-02-07 |
| 6988292 | Flexible brush comprising a mixture of polymers | Ping Wang, Xiaodan Xu | 2006-01-24 |
| 6948209 | Electric toothbrushes having flexible necks | — | 2005-09-27 |
| 6877638 | Uniform dispensing, multi-chambered tube comprising a flow regulating element | Li Li | 2005-04-12 |
| 6845884 | Multi-chambered, uniform dispensing tube | Li Li | 2005-01-25 |
| 6836917 | Replaceable head electric toothbrush and connection structure therefor | Lawrence A. Blaustein, John Osher, Douglas A. Gall, K. Chan, Ping Wang | 2005-01-04 |
| D499884 | Electric toothbrush | Wang Ping | 2004-12-21 |
| D476486 | Toothbrush | John Roy Whitney, Lawrence A. Blaustein, Ping Wang | 2003-07-01 |
| D461959 | Toothbrush head | Ping Wang, Ying Ouyang, Jing Li | 2002-08-27 |
| 5996845 | Self-closing liquid dispensing package | — | 1999-12-07 |
| 5529224 | Self-closing liquid dispensing package | Tatsuya Taniguchi | 1996-06-25 |