Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11152638 | Secondary battery | Sang Uck Kim | 2021-10-19 |
| 11031646 | Cylindrical battery cell manufacturing device comprising secondary crimping mold | Tae-Hyun Kwon, Hyeon Soo Sim, Ha Young Heo, Joo Hwan Sung, Hyoung Kwon Kim +1 more | 2021-06-08 |