Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131534 | Connector for blast-triggering device | Eung So Lee, Ki-Chul Park, Kyu Jin Ha | 2021-09-28 |
| 11054235 | Trunkline delay detonator and blast-triggering device using same | Eung So Lee, Ki-Chul Park, In-ji Kim | 2021-07-06 |
| 11056664 | Organic light-emitting device | Hwan-Hee Cho, Jin-Soo Hwang | 2021-07-06 |
| 10975494 | Ingot growth control device and control method thereof | Hyun Woo Park | 2021-04-13 |