| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 6 | |
| #2 | WIPO (World Intellectual Property Organization) | 5 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Huang Jiehren | 7 |
| #2 | Huang Jieren | 7 |
| Publication | Filing date | Title |
|---|---|---|
| CN108194013A | It is a kind of for the draw off gear of curtain rope folding and unfolding and extendible curtain | |
| CN106050108A | Retractable device used for deploying and retraction of curtain pull rope and retractable curtain | |
| CN106050109A | Adjustment device for curtain pull rope and retractable curtain | |
| CN106089002A | Wire-winding unit and extendible curtain | |
| CN106050110A | Retractable curtain | |
| CN103264425A | Method for preparing product with natural crackles |