| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | Republic of Korea | 3 | |
| #3 | Australia | 2 | |
| #4 | Canada | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Japan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Indexing scheme relating to hinges | |
| #2 | Wing fittings | |
| #3 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jang Jong Bok | 12 |
| #2 | Jang Jong-Bok | 4 |
| Publication | Filing date | Title |
|---|---|---|
| KR20000057016A | Automatic restitution device for the shock absorbing hinge using oil pressure | |
| KR20000056727A | Elasticity control device for spring hinge | |
| FR2783274A1 | Automatic shock absorbing hydraulic hinge device | |
| KR0156093B1 | Automatic buffing hinge using oil pressure |