Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149326 | High-strength and high-manganese steel having excellent low-temperature toughness and manufacturing method therefor | Jae-Yong Chae, Sang-Deok Kang, Jae-Young Cho, Hong-Yeol Oh, Tae-Il So | 2021-10-19 |