Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12037667 | High-strength steel having excellent resistance to sulfide stress cracking, and method for manufacturing same | Seong-Ung Koh, Yoen-Jung Park, Hong-Ju Lee, Hyo-Shin Kim | 2024-07-16 |
| 11649519 | Sour-resistant heavy-wall steel plate having excellent low-temperature toughness and post-heat treatment characteristics and method for manufacturing same | Seong-Ung Koh, Jae Hyun Park | 2023-05-16 |
| 10801092 | Thick steel plate having excellent low-temperature toughness and hydrogen-induced cracking resistance, and method for manufacturing same | Seong-Ung Koh, Jae Hyun Park, Yoen-Jung Park | 2020-10-13 |