Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10207339 | Cutting insert for indexable drill | Chan Kyu Park, Hong Seung Son, Sung Hyun Kim, Sun-Yong Ahn, Young Heum Kim | 2019-02-19 |
| 10099298 | Cutting insert and indexable drill | Hong Seung Son, Chan Kyu Park, Sung Hyun Kim, Sun-Yong Ahn, Young Heum Kim | 2018-10-16 |