| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 1 | |
| #3 | Chile | 1 | |
| #4 | Colombia | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Hungary | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | Philippines | 1 | |
| #9 | Serbia | 1 | |
| #10 | Russian Federation | 1 | |
| #11 | Ukraine | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Hinges for doors or windows | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Wing fittings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Liang Yelin | 12 |
| #2 | Zhu Haihui | 10 |
| #3 | Lao Qingjun | 10 |
| #4 | Liang Yeling | 1 |
| Publication | Filing date | Title |
|---|---|---|
| RS59267B1 | Door hinge having damping function |