Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10370954 | Method for surveying drill holes, drilling arrangement, and borehole survey assembly | Mikko Heinonen, Jussi Rautiainen, Mikko Mattila, Jori Montonen | 2019-08-06 |
| 5823274 | Drill rod | Risto Wisakanto | 1998-10-20 |
| 5524717 | Method of using a pressurized medium in drilling | Risto Wisakanto | 1996-06-11 |