Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11075369 | Negative electrode active material for lithium secondary battery and method of preparing the same | Yong Ju Lee, Eun Kyung Kim | 2021-07-27 |
| D922747 | Shoe stud | Dong Chil Kwon, Sung Won Park | 2021-06-22 |
| D922748 | Shoe studs support | Dong Chil Kwon, Sung Won Park | 2021-06-22 |
| 10989847 | Optical module and optical device using same | Kyeong Seok Lee, Gyu Weon Hwang, Won Mok Kim, In Ho Kim | 2021-04-27 |