| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Hong Kong | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | United Kingdom | 2 | |
| #5 | United States | 2 | |
| #6 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Circuits for supplying electric power | |
| #2 | Batteries | |
| #3 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shum King Mo | 14 |
| #2 | King Mo Shum | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP1949487A2 | A battery charger for charging different types of battery pack | |
| WO2007036151A1 | Battery charger | |
| US2006103347A1 | Battery charger for various sizes of batteries with selection of appropriate charging power | |
| US6710577B1 | Battery charger |