Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D476156 | Electric toothbrush | Alex Wong Chi To | 2003-06-24 |
| D474894 | Electric toothbrush | Alex Wong Chi To | 2003-05-27 |
| D471638 | Floor for bath apparatus | — | 2003-03-11 |
| 6505358 | Bath apparatus | Alex Wong Chi To | 2003-01-14 |