Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10533379 | Down-the-hole drilling device | — | 2020-01-14 |
| 10428603 | Method for putting together a down-the-hole drilling apparatus for plastic pipe drilling and a down-the-hole drilling apparatus | — | 2019-10-01 |
| 10024108 | Drilling device | — | 2018-07-17 |
| 9970238 | Method in putting together of a down-the-hole drilling apparatus and a down-the-hole drilling apparatus | — | 2018-05-15 |
| 9611701 | Method and apparatus for plastic pipe drilling | — | 2017-04-04 |
| 9175519 | Method and apparatus for coupling an earth pipe into the ground, using a solidifying mass | — | 2015-11-03 |