Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11913532 | Domino-type torque generator | — | 2024-02-27 |
| 11602197 | Quick string-tying device and method | Yok Key Mak | 2023-03-14 |
| 10349708 | Track zipper and connecting structure with a track zipper | Ka Yin Yik | 2019-07-16 |
| 9885203 | Double action hinges | — | 2018-02-06 |