Issued Patents All Time
Showing 51–62 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6454625 | Interactive talking dolls | Chi Fai Mak | 2002-09-24 |
| D462046 | Space ship | — | 2002-08-27 |
| D461856 | Robot | — | 2002-08-20 |
| 6437703 | Level/position sensor and related electronic circuitry for interactive toy | — | 2002-08-20 |
| D459412 | Robot | — | 2002-06-25 |
| 6377187 | Level/position sensor and related electronic circuitry for interactive toy | — | 2002-04-23 |
| 6375535 | Interactive talking dolls | Chi Fai Mak | 2002-04-23 |
| 6358111 | Interactive talking dolls | Chi Fai Mak | 2002-03-19 |
| 6309275 | Interactive talking dolls | Chi Fai Mak | 2001-10-30 |
| 5259086 | Musical toothbrush | — | 1993-11-09 |
| D291888 | Transmitter or similar article | Tsang H. T. Henry | 1987-09-15 |
| D290086 | Illuminable wall switch cover | Tsang H. T. Henry | 1987-06-02 |