Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040785 | Mixed lock type toll collecting system and method for toll collection of vehicles on toll road | Won-Seo Park, Duk-Kyun Ryu, Jong Yeob Kim | 2000-03-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040785 | Mixed lock type toll collecting system and method for toll collection of vehicles on toll road | Won-Seo Park, Duk-Kyun Ryu, Jong Yeob Kim | 2000-03-21 |