Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D892907 | Camera lens holder | Ronald Chi-yin Chan, Yau Sing Hubert Sin | 2020-08-11 |
| 10667588 | Multiple transaction card holder and dispenser | Ronald Chi-yin Chan, Yau Sing Hubert Sin | 2020-06-02 |
| 10178901 | Multiple transaction card holder and dispenser | Ronald Chi-yin Chan, Yau Sing Hubert Sin | 2019-01-15 |
| 10154716 | Camera case removable camera lens holder | Ronald Chi-yin Chan, Yau Sing Hubert Sin | 2018-12-18 |
| D835410 | Card dispensing wallet | Ronald Chi-yin Chan, Yau Sing Hubert Sin | 2018-12-11 |