Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D479402 | Power toothbrush bristle pattern | John Gatzemeyer, Fung Kut Hui | 2003-09-09 |
| D477715 | Powered toothbrush bristle pattern | John Gatzemeyer, Fung Kut Hui | 2003-07-29 |
| D476157 | Powered toothbrush bristle pattern | John Gatzemeyer, Fung Kut Hui | 2003-06-24 |
| D475855 | Electric toothbrush bristle pattern | Gerardus W. H. Janssen, John Gatzemeyer | 2003-06-17 |