Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10857658 | Hydraulic percussion device and construction apparatus having the same | Yong-shik Park, Hoon Lim, Bok Joong Yoon | 2020-12-08 |
| 10801184 | Hydraulic breaker capable of calculating operating time | — | 2020-10-13 |