| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 2 | |
| #2 | Hong Kong | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Medical technology | |
| #4 | Thermal processes | |
| #5 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tsui Herman Yik Wai | 6 |
| #2 | Wai Tsui Herman Yik | 1 |
| #3 | Tsui Herman Yik | 1 |
| #4 | Tsui Yik Wai Herman | 1 |
| #5 | Tsui Herman Y W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2014218382A1 | Apparatus for air purification and disinfection | |
| CN101534869A | Diffusive plasma treatment and material procession | |
| WO2007009336A1 | Apparatus for air purification and disinfection | |
| HK1056487A2 | A plasma system for indoor air purification and disinfection |