Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649518 | Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same | Sung Ho JANG | 2023-05-16 |
| 11634784 | Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same | Sung Ho JANG | 2023-04-25 |
| 11608549 | Cryogenic steel plate and method for manufacturing same | — | 2023-03-21 |
| 11591679 | Low-temperature steel material having excellent toughness in welding portion thereof and manufacturing method therefor | — | 2023-02-28 |