Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11913787 | Ground marking aerial target for aerial survey transformable to hand-fan shape | Seong Sam Kim, Dong Yoon Shin, Hyun Ju Nho, Hyun Ju Kim | 2024-02-27 |
| 11359492 | Method and apparatus for preventing accident in tunnel | Seong Sam Kim, Hyun Ju Nho, Hyun Ju Kim | 2022-06-14 |