| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | Canada | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Germany | 2 | |
| #5 | Republic of Korea | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Buttons, pins and buckles | |
| #3 | Locks | |
| #4 | Travel equipment | |
| #5 | Hand carried bags | |
| #6 | Personal adornments |
| # | Name | Total Patents |
|---|---|---|
| #1 | Song Chang June | 15 |
| #2 | Song Chang-June | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE19817471A1 | Key clip and key combination | |
| CA2233169A1 | Key clip | |
| KR100202832B1 | Key clip | |
| WO9521551A2 | Key fob and attachment | |
| WO9423608A1 | Device for securing objects on a ring | |
| GB9706301D0 | Device for securing objects on a ring | |
| GB9512351D0 | Key security device | |
| GB9106797D0 | Pendant connector |