Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10994316 | Straightening system and straightening method | Gwan-Sik Min, Pil-Jong Lee, Seong-Hyun Ko, Hui-Seop Kwon, Seung Woo Park +1 more | 2021-05-04 |
| 10967410 | Cooling device and cooling method | Pil-Jong Lee, Hui-Seop Kwon, Gwan-Sik Min | 2021-04-06 |