Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11033865 | Dissolution mixer | Hwi-Soo YANG, Woo Ha Kim, Sang Hoon Choy | 2021-06-15 |
| 11038157 | Method for manufacturing electrode for lithium secondary battery | Cheol Woo Kim, Hyun Sik Chae, Sang Hoon Choy | 2021-06-15 |
| 10888870 | Grinder using induced electric field | Hyung-Suk Cho, Sang Hoon Choy, Byoung Hoon Ahn, Hyun Sik Chae | 2021-01-12 |