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Drill string component |
Petri Ahola |
2017-03-14 |
| 8118116 |
Elongated percussive rock drilling element, a method for production thereof and a use thereof |
— |
2012-02-21 |
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Rock drill bit and a thread joint therefor |
Bo Carlstrom |
2008-02-05 |
| 7182159 |
Drill member for rock drilling and a method for manufacturing the drill member |
— |
2007-02-27 |
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Percussive rock drill bit and buttons therefor and method for manufacturing drill bit |
Lars-Gunnar Lundell |
2003-12-09 |
| 6547891 |
Elongated percussive rock drilling element |
Lars-Gunnar Lundell |
2003-04-15 |
| 6508318 |
Percussive rock drill bit and buttons therefor and method for manufacturing drill bit |
Lars-Gunnar Lundell |
2003-01-21 |
| 6394190 |
Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance |
— |
2002-05-28 |
| 6334493 |
Corrosion-resistant thread joint for percussion drill element and method of achieving such resistance |
— |
2002-01-01 |
| 6303237 |
Ferritic alloy for constructions |
Urban Forsberg |
2001-10-16 |
| 6296953 |
Steel alloy for compound tubes |
Urban Forsberg |
2001-10-02 |
| 6146582 |
Austenitic stainless steel with good oxidation resistance |
— |
2000-11-14 |
| 5827476 |
Austenitic stainless steel with good oxidation resistance |
Jonas Rosen |
1998-10-27 |