Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11598159 | Coupling for connecting downhole tubulars | — | 2023-03-07 |
| 10626680 | Percussive rock drill bit with flushing grooves | John Hammargren | 2020-04-21 |
| 10501997 | Drill bit with recessed cutting face | — | 2019-12-10 |
| 9797202 | Drill bit for rock drilling tool, and rock drilling tool | John Hammargren | 2017-10-24 |
| 9637982 | Shock wave modification in percussion drilling apparatus and method | Tomas Jansson | 2017-05-02 |
| D705827 | Drill bit for percussive drilling | John Hammargren | 2014-05-27 |
| 7290536 | Crankcase ventilation in a combustion engine for a vehicle | Jerker Lindmark, Andreas Dahl, Anders Eklund | 2007-11-06 |