| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 13 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Civil engineering | |
| #5 | Packaging and shipping | |
| #6 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Shaping of plastics | |
| #3 | Making metal sheets | |
| #4 | Sawing | |
| #5 | Sewers | |
| #6 | Fluid heaters | |
| #7 | Handling thin material | |
| #8 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zheng Nenghuan | 13 |
| #2 | Yang Chunjiang | 4 |
| #3 | Xiao Rijun | 3 |
| #4 | Dong Mianli | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2012034393A1 | Winding overlap structure for belt material of double-flat wall tube and double-flat wall tube using the same | |
| WO2011054267A1 | Strip feeder |