Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10988986 | Directional drilling apparatus using water hammer unit | — | 2021-04-27 |
| 10041311 | Rod clamping device | — | 2018-08-07 |
| 9546522 | Lead supporting device of drilling machine | — | 2017-01-17 |
| 9103167 | Rod-mounting apparatus for drilling apparatus | — | 2015-08-11 |
| 8839852 | Excavator | — | 2014-09-23 |
| 8210274 | Vibration hammer | — | 2012-07-03 |
| 7712552 | Water hammer | — | 2010-05-11 |