| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 3 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Brazil | 1 | |
| #5 | Hong Kong | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | Mexico | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology | |
| #3 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chung Shu-Hung Henry | 6 |
| #2 | Ho Ngai Man | 5 |
| #3 | Hui Shu Yuen Ron | 4 |
| #4 | Hui Shu-Yuen Ron | 4 |
| #5 | Ho Ngai-Man | 1 |
| #6 | Chung Shu-Hung H | 1 |
| #7 | Hung Chung Henry Shu | 1 |
| #8 | Hui Shu-Yuen R | 1 |
| #9 | Henry Hui Shu-Yuen Ron Chung S | 1 |
| #10 | Chung Shu Hung Henry | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN101044800A | Dimmable lighting system | |
| EP1671522A2 | Dimming control techniques using self-excited gate circuits | |
| EP1658759A2 | Apparatus and method for providing dimming control of lamps and electrical lighting systems |