Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D493974 | Travel bassinet | — | 2004-08-10 |
| 5875683 | Controllable gear shifter with lock-in system | Bill Yeung, Chan Ho Yeung, Mak Tsz Fong | 1999-03-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D493974 | Travel bassinet | — | 2004-08-10 |
| 5875683 | Controllable gear shifter with lock-in system | Bill Yeung, Chan Ho Yeung, Mak Tsz Fong | 1999-03-02 |