| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | Republic of Korea | 4 | |
| #3 | United States | 4 | |
| #4 | Australia | 3 | |
| #5 | Canada | 3 | |
| #6 | United Kingdom | 3 | |
| #7 | Taiwan | 3 | |
| #8 | Spain | 2 | |
| #9 | China | 1 | |
| #10 | Germany | 1 | |
| #11 | Italy | 1 | |
| #12 | Japan | 1 | |
| #13 | Malaysia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology | |
| #3 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chang I-Chang | 20 |
| #2 | Chang I Chang | 9 |
| #3 | I-Chang Chang | 1 |
| #4 | Yizhang Zhang | 1 |
| Publication | Filing date | Title |
|---|---|---|
| TW201009199A | Improved structure of electrical energy exchange device | |
| GB0701616D0 | Improvements in battery chargers | |
| FR2907267A3 | BATTERY CHARGER | |
| US2008074085A1 | Charger structure with normal and boosting charge modes | |
| GB0618200D0 | Device for automatic detection of battery polarity | |
| GB0617805D0 | Battery charger | |
| ES2324129A1 | DEVICE FOR BATTERY CONNECTION. |