Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10251236 | Lamps having current leakage protection, systems and methods of use | — | 2019-04-02 |
| 10145531 | Light emitting diode strobe lighting system | — | 2018-12-04 |
| 9462648 | Method and arrangement for remotely driving light emitting diodes from a three-phase power source via a single phase cable system | Chung Ping Kevin Lo, Kam Wah Siu | 2016-10-04 |
| 9445472 | Method and circuit for driving light-emitting diodes from three-phase power source | Chung Ping Kevin Lo, Kam Wah Siu | 2016-09-13 |
| 9357604 | Light engine with LED switching array | Kam Wah Siu | 2016-05-31 |
| 9322517 | Non-glare reflective LED lighting apparatus with heat sink mounting | Tin Po Chu | 2016-04-26 |
| 9320099 | LED Switch Circuitry for Varying Input Voltage Source | Johnny Siu | 2016-04-19 |
| 9234646 | Non-glare reflective LED lighting apparatus with heat sink mounting | Tin Po Chu | 2016-01-12 |
| 9206975 | Non-glare reflective LED lighting apparatus with heat sink mounting | Tin Po Chu, Yuk Tsan Sy | 2015-12-08 |
| 9175832 | Faceted LED street lamp lens | Yuk Tsan Sy | 2015-11-03 |
| 9161400 | Method and apparatus for cancelling output current ripples in LED driving circuits | Kam Wah Siu, Siu Hong Wong, BO TIAN | 2015-10-13 |
| 9161404 | AC LED array configuration switching circuit triggered by source voltage level | Siu Hong Wong, Kam Wah Siu | 2015-10-13 |
| 9113525 | LED switch circuitry for varying input voltage source | Johnny Siu | 2015-08-18 |
| 8947014 | LED switch circuitry for varying input voltage source | Johnny Siu | 2015-02-03 |
| 8928241 | Method and apparatus for controlling brightness of light emitting diodes | Chung Ping Kevin Lo, Kwok Hung Poon, Kam Wah Siu | 2015-01-06 |
| 8864344 | Polyhedral secondary optical lens | Jin Bo Jiang, Tin Po Chu | 2014-10-21 |
| 8766555 | Tunable white color methods and uses thereof | Qifei Tu | 2014-07-01 |
| 8723439 | Triac dimmable power supply unit for LED | Kam Wah Siu | 2014-05-13 |
| 8613526 | LED aquarium lighting device | Vincent Tsz Yeung Li | 2013-12-24 |
| 8508140 | LED switch circuitry for varying input voltage source | Johnny Siu | 2013-08-13 |
| 7009580 | Solid state lighting array driving circuit | — | 2006-03-07 |