| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 9 | |
| #2 | United States | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Toys | |
| #2 | Nails | |
| #3 | Vehicle wheels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kim Kwan Young | 5 |
| #2 | Heo In-Deok | 3 |
| #3 | Heo In Deok | 3 |
| #4 | Kim Kwan-Young | 2 |
| #5 | Heo In-Duk | 1 |
| #6 | He In Deok | 1 |
| #7 | Heo In-Dock | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR101950925B1 | Dowel assembly blocks that are easy to assemble and prevent wear | |
| KR101642345B1 | A chain block toys | |
| KR101797171B1 | A chain block toys | |
| KR101457197B1 | A wheel for chain block toy | |
| KR20140025078A | A chain block toy | |
| KR20080019360A | One-block assembly blocks | |
| KR20080019361A | A chain block | |
| KR20070066182A | A block toy | |
| KR20070062021A | A chain block toy |