| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 3 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | United States | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Electrical machinery and energy | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | AC and DC conversion devices | |
| #2 | Pulse technique | |
| #3 | Amplifiers | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fang Hua | 11 |
| #2 | Fang Hutang | 11 |
| #3 | Peng Peng | 1 |
| #4 | Hutang Fang | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN1402430A | Pulse area modulation digital power processing method and device | |
| CN1402416A | Zero-voltage converting digital power converter | |
| CN1072104A | Oxygen-rich air conditioning device |