Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7669793 | Food cutting device | Kwok Kuen So, Yiu Chung Wan | 2010-03-02 |
| 7648092 | Food grater | Williard Wing Yin Wong, Yiu Chung Wan | 2010-01-19 |
| 7637445 | Food cutting device | Kwok Kuen So, Yiu Chung Wan, Willard Wing Yin Wong | 2009-12-29 |
| D537304 | Food grater | Willard Wing Yin Wong, Yiu Chung Wan | 2007-02-27 |