| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 7 | |
| #2 | China | 3 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | United States | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Clutches and brakes | |
| #3 | Windows or door furnishings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ji Sang Hun | 10 |
| #2 | Ji Sang-Hun | 3 |
| Publication | Filing date | Title |
|---|---|---|
| KR20190119310A | Blinds cord with safety connectors | |
| KR20190048268A | Blind having separator for pulling two lines | |
| KR20190041135A | Blinds cord with safety connectors | |
| KR20180105341A | Pull-wire shrinkage device | |
| KR20180055330A | Two-way operation type clutch driving device | |
| KR101827751B1 | Two way blind | |
| KR101672650B1 | The one-way clutch |