Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7559663 | Lighting device | Kwok Ying Joseph Chow, Kui Hang Wong | 2009-07-14 |
| 7170019 | Inertia switch and flashing light system | Lai Mak | 2007-01-30 |
| 7071828 | Wearable band with motion detection and flashing lights | — | 2006-07-04 |
| 7067986 | Frequency controlled lighting system | Lai Mak | 2006-06-27 |
| 7059739 | Skates with flashing lights | — | 2006-06-13 |
| 7057354 | Frequency controlled lighting system | Lai Mak | 2006-06-06 |
| 7029140 | Flashing light system with multiple voltages | Lai Mak | 2006-04-18 |
| 7004598 | Flashing light system with power selection | — | 2006-02-28 |
| 6906472 | Articles with flashing lights | — | 2005-06-14 |
| 6851817 | Wheel incorporating a flashing light feature | — | 2005-02-08 |
| 6682202 | Novelty devices with flashing light feature | — | 2004-01-27 |
| 5969479 | Light flashing system | — | 1999-10-19 |
| 5894201 | Light flashing system | — | 1999-04-13 |