| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 10 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Computer technology | |
| #3 | IT methods for management | |
| #4 | Audio-visual technology | |
| #5 | Semiconductors |
| # | Technology | |
|---|---|---|
| #1 | Data processing systems | |
| #2 | Electric digital data processing | |
| #3 | Teaching materials | |
| #4 | Registering devices | |
| #5 | Coin-freed | |
| #6 | Semiconductor devices | |
| #7 | Ticket-issuing devices | |
| #8 | Data recognition and presentation | |
| #9 | Traffic control systems | |
| #10 | Television |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Jae-Hak | 18 |
| #2 | Ha Tae-Ho | 2 |
| #3 | Song Joon-Yub | 2 |
| #4 | Lee Chang-Woo | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP1337926A1 | The multi-functional pda |