| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 6 | |
| #2 | United States | 3 | |
| #3 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Mechanical elements | |
| #4 | Thermal processes | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Domestic plumbing installations | |
| #2 | Pipes | |
| #3 | Nails | |
| #4 | Sewers | |
| #5 | Sanitary equipment | |
| #6 | Metal-working | |
| #7 | Punching metal | |
| #8 | Fluid heaters |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wang Guofei | 10 |
| #2 | Qu Jinglei | 3 |
| #3 | Zhou Pingan | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN111473027A | Fixing device of wall body pendant | |
| CN111112961A | Floor drain and manufacturing process thereof | |
| CN111827419A | Overflow and drainage integrated water remover | |
| CN111827420A | Overflow and integrative hydrophone that anhydrates | |
| CN108105996A | Liquid container tank and water heater | |
| CN107653942A | Spinner | |
| EP3444407A1 | Drain with plug | |
| US2017260723A1 | Wash basin drain |