| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 25 | |
| #2 | South Africa | 17 | |
| #3 | Poland | 16 | |
| #4 | Australia | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Chile | 1 | |
| #7 | China | 1 | |
| #8 | Republic of Korea | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machine tools | |
| #3 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zhang Jianwen | 14 |
| #2 | Fu Yuwen | 7 |
| #3 | Li Jiangtao | 7 |
| #4 | Ni Jianjun | 6 |
| #5 | Zhang Weiqun | 6 |
| #6 | Xiong Jie | 6 |
| #7 | Li Yuehua | 6 |
| #8 | Chen Nan | 5 |
| #9 | Yao Danhua | 5 |
| #10 | Chen Fei | 4 |
| Publication | Filing date | Title |
|---|---|---|
| WO2012155558A1 | Arrangement structure of boiler heating surface | |
| WO2009103195A1 | A driving pin rack joint device for a rotary heat exchanger | |
| CN1857853A | Machining process of roller rack for heat ransfer element of rotary air preheater |