Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9445877 | Electric toothbrush module | Siu Wai Tang, Kwok Yau Cheung, Sui-Kay Wong | 2016-09-20 |
| 9092021 | Interactive apparatus | Wai Choi Lewie Leung, Kwok Yau Cheung | 2015-07-28 |
| 9079113 | Interactive personal robotic apparatus | Wai Choi Lewie Leung, Kwok Yau Cheung | 2015-07-14 |
| 8803682 | Sleep-posture sensing and monitoring system | Sui-Kay Wong, Lewie Wai-choi Leung | 2014-08-12 |
| 7172721 | Thermoplastic molding process | — | 2007-02-06 |
| 7107642 | Adjustable mattress and pillow system | Sui-Kay Wong, Wa Choi Cheung, Him Fung Hau | 2006-09-19 |
| 5794296 | Electric toothbrush | — | 1998-08-18 |
| 4221454 | Battery box, particularly for use in toys | — | 1980-09-09 |