Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11054235 | Trunkline delay detonator and blast-triggering device using same | Eung So Lee, Ki-Chul Park, Se-Hun Kim | 2021-07-06 |
| 11025980 | User terminal apparatus, electronic apparatus, system, and control method thereof | Sang-on Choi, Byung-seok Soh, Mi-ra Yu, Ho-june YOO, Eun-seok Choi | 2021-06-01 |