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1977-11-25 |
1981-10-27 |
Sandvik Aktiebolag |
Rock drill
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1980-01-11 |
1981-12-08 |
Sandvik Aktiebolag |
Percussion drill bit having centrally projecting insert
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*
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1983-03-23 |
1992-11-10 |
Santrade Limited |
Excavating tool cutting insert
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1983-04-05 |
1989-02-15 |
Sandvik Ab |
Bergborr foer slagborrning av mindre haal innefattande snedstaellda periferistift
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SE8307010L
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1983-12-19 |
1985-06-20 |
Santrade Ltd |
Stift for slagborrande borrkrona och borrkrona derfor
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1986-08-22 |
1987-11-10 |
Minnesota Mining And Manufacturing Company |
Cutting element with wear resistant crown
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*
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1986-10-28 |
1988-01-05 |
Kennametal Inc. |
Rotary percussion drill bit
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*
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1989-08-22 |
1991-01-01 |
Kennametal Inc. |
Rotatable tool having a carbide insert with bumps
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1990-05-07 |
1991-06-25 |
Ingersoll-Rand Company |
Rock bit for a down-the-hole drill
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1991-03-01 |
1992-11-03 |
Hughes Tool Company |
Fixed cutter bit with improved diamond filled compacts
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1991-09-26 |
1992-12-22 |
Smith International, Inc. |
Inclined chisel inserts for rock bits
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ZA93584B
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*
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1992-05-27 |
1993-09-01 |
De Beers Ind Diamond |
Abrasive tools.
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ZA95663B
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*
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1993-10-28 |
1996-07-29 |
Galison Drilling Pty Ltd |
Mounting drill buttons
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1994-10-12 |
1999-01-11 |
Sandvik Ab |
Stift av hårdmetall och bergborrkrona för slående borrning
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1994-10-12 |
1998-03-30 |
Sandvik Ab |
Stift av hårdmetall och bergborrkrona för slående borrning
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1995-06-20 |
1997-09-23 |
Sandvik Ab |
Ponteira para perfuração de rocha
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1996-03-14 |
1998-10-12 |
Sandvik Ab |
Bergborrkrona för slående borrning
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1996-09-09 |
2001-03-13 |
The Sollami Company |
Tool having a tungsten carbide insert
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1996-09-09 |
1998-12-08 |
The Sollami Company |
Tool having a tungsten carbide insert
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1997-08-18 |
2000-06-13 |
Sandvik Ab |
Partially enhanced drill bit
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1998-02-13 |
2001-03-13 |
Smith International, Inc. |
Engineered enhanced inserts for rock drilling bits
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1999-05-28 |
2002-02-28 |
Betek Bergbau & Hartmetall |
Verfahren zur Bestückung eines Meißelkopfes eines Schaftmeißels und Meißel
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1999-11-25 |
2001-07-09 |
Sandvik Ab |
Bergborrkrona och stift för slående borrning samt metod att tillverka en bergborrkrona för slående borrning
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2000-03-29 |
2002-03-05 |
Sandvik Ab |
Drill bit
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2001-08-01 |
2005-02-17 |
Techmo Entw & Vertriebs Gmbh |
Bohrkrone
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2002-04-04 |
2004-06-01 |
Sandvik Ab |
Slående borrkrona och ett stift därför
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2002-08-27 |
2004-10-05 |
Applied Process, Inc. |
Method of producing downhole drill bits with integral carbide studs
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2003-05-02 |
2005-10-19 |
Smith International |
Compositions having enhanced wear resistance
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2003-12-09 |
2005-08-30 |
Sandvik Intellectual Property |
Bergborrkrona
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2004-09-21 |
2008-03-11 |
Sandvik Intellectual Property |
Bergborrkrona anpassad för slående borrning
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2004-11-17 |
2008-07-15 |
Sandvik Intellectual Property |
Bergborrkrona för slående borrning
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2005-01-17 |
2010-03-23 |
Us Synthetic Corporation |
Polycrystalline diamond insert, drill bit including same, and method of operation
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2007-03-09 |
2008-08-05 |
The William J. Brady Loving Trust |
Hard rock percussion drill bit with paraboloid PCD inserts
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2008-02-26 |
2009-03-20 |
Sandvik Intellectual Property |
Rock drill bit
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2008-02-26 |
2009-03-20 |
Sandvik Intellectual Property |
Drill bit
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2009-04-29 |
2014-04-22 |
Schlumberger Technology Corporation |
Drill bit cutter pocket restitution
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2011-05-31 |
Atlas Copco Secoroc Ab |
Hårdmetallstift för en borrkrona för slående bergborrning, borrkrona och metod att slipa ett hårdmetallstift
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2010-03-09 |
2011-09-28 |
Sandvik Intellectual Property AB |
A rock drill bit, a drilling assembly and a method for percussive rock drilling
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2011-10-27 |
2016-01-13 |
Sandvik Intellectual Property AB |
Drill bit having a sunken button and rock drilling tool for use with such a drill bit
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2011-12-22 |
2012-02-01 |
Element Six Abrasives Sa |
Super-hard tip for a pick tool and pick tool comprising same
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2012-06-21 |
2013-12-27 |
한국생산기술연구원 |
헤드부 중심으로부터 상이한 반경을 가지는 버튼 배열을 포함하는 드릴 비트
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2012-09-07 |
2014-05-27 |
Sandvik Intellectual Property Ab |
Drill bit for percussive drilling
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2012-12-28 |
2014-07-03 |
Smith International, Inc. |
Percussion drill bit with conical cutting elements
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2013-05-03 |
2014-11-05 |
Sandvik Intellectual Property AB |
Percussive rock drill bit
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2013-05-17 |
2018-01-31 |
Atlas Copco Secoroc AB |
Device and system for percussion rock drilling
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2013-09-04 |
2018-10-16 |
Smith International, Inc. |
Cutting elements with wear resistant diamond surface
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2013-10-28 |
2016-07-29 |
Sandvik Intellectual Property |
Udarowy świder wiertniczy ze zoptymalizowanymi słupkami zewnętrznymi
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EP2902583B1
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2014-01-31 |
2017-04-12 |
Sandvik Intellectual Property AB |
Percussive rock drill bit with flushing grooves
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