| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 2 | |
| #2 | Republic of Korea | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | Brazil | 1 | |
| #7 | Canada | 1 | |
| #8 | China | 1 | |
| #9 | Hong Kong | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chow Lap Lee | 12 |
| #2 | Chow Shing Cheung | 8 |
| #3 | Chow Lap Hang | 4 |
| #4 | Lap-Hang Chow Lap-Lee Chow | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2005057143A1 | Cold cathode fluorescent lamps | |
| US2004051453A1 | Mercury gas discharge device |