|
US4333540A
(en)
|
1978-10-02 |
1982-06-08 |
General Electric Company |
Cutter element and cutter for rock drilling
|
|
DE3114749C2
(en)
|
1981-04-11 |
1983-10-27 |
Christensen, Inc., 84115 Salt Lake City, Utah |
Wedge-shaped cutting link for rotary drill bits for deep drilling
|
|
US4570726A
(en)
|
1982-10-06 |
1986-02-18 |
Megadiamond Industries, Inc. |
Curved contact portion on engaging elements for rotary type drag bits
|
|
US4593777A
(en)
|
1983-02-22 |
1986-06-10 |
Nl Industries, Inc. |
Drag bit and cutters
|
|
US4872520A
(en)
|
1987-01-16 |
1989-10-10 |
Triton Engineering Services Company |
Flat bottom drilling bit with polycrystalline cutters
|
|
US4858707A
(en)
|
1988-07-19 |
1989-08-22 |
Smith International, Inc. |
Convex shaped diamond cutting elements
|
|
IE892863L
(en)
|
1988-09-09 |
1990-03-09 |
Galderma Rech Dermatologique |
Abrasive compacts
|
|
FR2647153B1
(en)
|
1989-05-17 |
1995-12-01 |
Combustible Nucleaire |
COMPOSITE TOOL COMPRISING A POLYCRYSTALLINE DIAMOND ACTIVE PART AND METHOD FOR MANUFACTURING THE SAME
|
|
US5115873A
(en)
|
1991-01-24 |
1992-05-26 |
Baker Hughes Incorporated |
Method and appartus for directing drilling fluid to the cutting edge of a cutter
|
|
DE69221983D1
(en)
|
1991-10-09 |
1997-10-09 |
Smith International |
Diamond cutting insert with a convex cutting surface
|
|
US5172778A
(en)
|
1991-11-14 |
1992-12-22 |
Baker-Hughes, Inc. |
Drill bit cutter and method for reducing pressure loading of cutters
|
|
US5253939A
(en)
|
1991-11-22 |
1993-10-19 |
Anadrill, Inc. |
High performance bearing pad for thrust bearing
|
|
US5467836A
(en)
|
1992-01-31 |
1995-11-21 |
Baker Hughes Incorporated |
Fixed cutter bit with shear cutting gage
|
|
USD351174S
(en)
*
|
1993-07-19 |
1994-10-04 |
Brady William J |
Roof drill bit for mining machine
|
|
US5379854A
(en)
|
1993-08-17 |
1995-01-10 |
Dennis Tool Company |
Cutting element for drill bits
|
|
EP0707130B1
(en)
|
1994-10-15 |
2003-07-16 |
Camco Drilling Group Limited |
Rotary drill bits
|
|
GB2300437B
(en)
|
1995-05-02 |
1998-07-22 |
Camco Drilling Group Ltd |
Improvements in or relating to cutting elements for rotary drill bits
|
|
US5706906A
(en)
|
1996-02-15 |
1998-01-13 |
Baker Hughes Incorporated |
Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped
|
|
US5813485A
(en)
|
1996-06-21 |
1998-09-29 |
Smith International, Inc. |
Cutter element adapted to withstand tensile stress
|
|
US5752573A
(en)
|
1996-08-12 |
1998-05-19 |
Baker Hughes Incorporated |
Earth-boring bit having shear-cutting elements
|
|
GB9621217D0
(en)
|
1996-10-11 |
1996-11-27 |
Camco Drilling Group Ltd |
Improvements in or relating to preform cutting elements for rotary drill bits
|
|
US5829541A
(en)
|
1996-12-27 |
1998-11-03 |
General Electric Company |
Polycrystalline diamond cutting element with diamond ridge pattern
|
|
US5871060A
(en)
|
1997-02-20 |
1999-02-16 |
Jensen; Kenneth M. |
Attachment geometry for non-planar drill inserts
|
|
US6053263A
(en)
|
1997-06-20 |
2000-04-25 |
Baker Hughes Incorporated |
Cutting element tip configuration for an earth-boring bit
|
|
US6672406B2
(en)
|
1997-09-08 |
2004-01-06 |
Baker Hughes Incorporated |
Multi-aggressiveness cuttting face on PDC cutters and method of drilling subterranean formations
|
|
US6045440A
(en)
|
1997-11-20 |
2000-04-04 |
General Electric Company |
Polycrystalline diamond compact PDC cutter with improved cutting capability
|
|
US6196340B1
(en)
|
1997-11-28 |
2001-03-06 |
U.S. Synthetic Corporation |
Surface geometry for non-planar drill inserts
|
|
US5944129A
(en)
|
1997-11-28 |
1999-08-31 |
U.S. Synthetic Corporation |
Surface finish for non-planar inserts
|
|
US6199645B1
(en)
|
1998-02-13 |
2001-03-13 |
Smith International, Inc. |
Engineered enhanced inserts for rock drilling bits
|
|
USD405811S
(en)
*
|
1998-03-05 |
1999-02-16 |
Dresser Industries, Inc. |
Seven blade drill bit
|
|
US6003623A
(en)
|
1998-04-24 |
1999-12-21 |
Dresser Industries, Inc. |
Cutters and bits for terrestrial boring
|
|
US6241035B1
(en)
|
1998-12-07 |
2001-06-05 |
Smith International, Inc. |
Superhard material enhanced inserts for earth-boring bits
|
|
US6227318B1
(en)
|
1998-12-07 |
2001-05-08 |
Smith International, Inc. |
Superhard material enhanced inserts for earth-boring bits
|
|
US6447560B2
(en)
|
1999-02-19 |
2002-09-10 |
Us Synthetic Corporation |
Method for forming a superabrasive polycrystalline cutting tool with an integral chipbreaker feature
|
|
GB9911139D0
(en)
|
1999-05-14 |
1999-07-14 |
Camco Int Uk Ltd |
Preform cutting elemenys for rotary drill bits
|
|
US6550556B2
(en)
|
2000-12-07 |
2003-04-22 |
Smith International, Inc |
Ultra hard material cutter with shaped cutting surface
|
|
US7086488B2
(en)
|
2002-11-04 |
2006-08-08 |
Smith International, Inc. |
Cutting element having enhanced cutting geometry
|
|
US6904983B2
(en)
|
2003-01-30 |
2005-06-14 |
Varel International, Ltd. |
Low-contact area cutting element
|
|
US6883624B2
(en)
|
2003-01-31 |
2005-04-26 |
Smith International, Inc. |
Multi-lobed cutter element for drill bit
|
|
US6929079B2
(en)
|
2003-02-21 |
2005-08-16 |
Smith International, Inc. |
Drill bit cutter element having multiple cusps
|
|
US6904984B1
(en)
|
2003-06-20 |
2005-06-14 |
Rock Bit L.P. |
Stepped polycrystalline diamond compact insert
|
|
US20050247486A1
(en)
|
2004-04-30 |
2005-11-10 |
Smith International, Inc. |
Modified cutters
|
|
US7726420B2
(en)
|
2004-04-30 |
2010-06-01 |
Smith International, Inc. |
Cutter having shaped working surface with varying edge chamfer
|
|
US7152703B2
(en)
|
2004-05-27 |
2006-12-26 |
Baker Hughes Incorporated |
Compact for earth boring bit with asymmetrical flanks and shoulders
|
|
US7681669B2
(en)
|
2005-01-17 |
2010-03-23 |
Us Synthetic Corporation |
Polycrystalline diamond insert, drill bit including same, and method of operation
|
|
US7475744B2
(en)
|
2005-01-17 |
2009-01-13 |
Us Synthetic Corporation |
Superabrasive inserts including an arcuate peripheral surface
|
|
SE529108C2
(en)
*
|
2005-09-28 |
2007-05-02 |
Seco Tools Ab |
Milling and turning inserts for chip separating machining with cutting edges located lower a support surface
|
|
SE529107C2
(en)
*
|
2005-09-28 |
2007-05-02 |
Seco Tools Ab |
Cutter, cutter body and inserts where the insert has the shape of a truncated pyramid
|
|
SE529182C2
(en)
*
|
2005-10-05 |
2007-05-22 |
Sandvik Intellectual Property |
Milling heads and milling tools with cavities for receiving male elements
|
|
US20070235230A1
(en)
|
2005-12-20 |
2007-10-11 |
Bruno Cuillier |
PDC cutter for high compressive strength and highly abrasive formations
|
|
US20080264696A1
(en)
|
2005-12-20 |
2008-10-30 |
Varel International, Ind., L.P. |
Auto adaptable cutting structure
|
|
SE530082C2
(en)
*
|
2006-05-31 |
2008-02-26 |
Seco Tools Ab |
Cutting tool with device for determining the position of insert and method for fixing insert in select position
|
|
US9145742B2
(en)
|
2006-08-11 |
2015-09-29 |
Schlumberger Technology Corporation |
Pointed working ends on a drill bit
|
|
US7743855B2
(en)
|
2006-09-05 |
2010-06-29 |
Smith International, Inc. |
Drill bit with cutter element having multifaceted, slanted top cutting surface
|
|
US8960337B2
(en)
|
2006-10-26 |
2015-02-24 |
Schlumberger Technology Corporation |
High impact resistant tool with an apex width between a first and second transitions
|
|
CA2675572C
(en)
|
2007-01-31 |
2015-06-23 |
Halliburton Energy Services, Inc. |
Rotary drill bits with protected cutting elements and methods
|
|
USD568915S1
(en)
*
|
2007-07-16 |
2008-05-13 |
Kennametal Inc. |
End mill face
|
|
US8783387B2
(en)
|
2008-09-05 |
2014-07-22 |
Smith International, Inc. |
Cutter geometry for high ROP applications
|
|
US8833492B2
(en)
|
2008-10-08 |
2014-09-16 |
Smith International, Inc. |
Cutters for fixed cutter bits
|
|
SE0900286A1
(en)
*
|
2009-03-06 |
2010-07-27 |
Seco Tools Ab |
Cut with recessed cutting support surface and cutting tools
|
|
US8087478B2
(en)
|
2009-06-05 |
2012-01-03 |
Baker Hughes Incorporated |
Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angles, drill bits so equipped and methods of drilling
|
|
US8327955B2
(en)
|
2009-06-29 |
2012-12-11 |
Baker Hughes Incorporated |
Non-parallel face polycrystalline diamond cutter and drilling tools so equipped
|
|
US8739904B2
(en)
|
2009-08-07 |
2014-06-03 |
Baker Hughes Incorporated |
Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
|
|
US8561727B1
(en)
|
2009-10-28 |
2013-10-22 |
Us Synthetic Corporation |
Superabrasive cutting elements and systems and methods for manufacturing the same
|
|
EP2383062B1
(en)
*
|
2010-04-30 |
2013-07-10 |
Seco Tools AB |
Milling tool with clamping screw having male grip at end thereof
|
|
EP2492035B1
(en)
*
|
2011-02-24 |
2016-01-13 |
Seco Tools AB |
Octagonal cutting insert having edge portion with variable wedge angle, and cutting tool
|
|
US9650837B2
(en)
|
2011-04-22 |
2017-05-16 |
Baker Hughes Incorporated |
Multi-chamfer cutting elements having a shaped cutting face and earth-boring tools including such cutting elements
|
|
US9428966B2
(en)
|
2012-05-01 |
2016-08-30 |
Baker Hughes Incorporated |
Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
|
|
US9482057B2
(en)
|
2011-09-16 |
2016-11-01 |
Baker Hughes Incorporated |
Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
|
|
US9103174B2
(en)
|
2011-04-22 |
2015-08-11 |
Baker Hughes Incorporated |
Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
|
|
US9062505B2
(en)
|
2011-06-22 |
2015-06-23 |
Us Synthetic Corporation |
Method for laser cutting polycrystalline diamond structures
|
|
EP2812523B1
(en)
|
2012-02-08 |
2019-08-07 |
Baker Hughes, a GE company, LLC |
Shaped cutting elements for earth-boring tools and earth-boring tools including such cutting elements
|
|
US9404310B1
(en)
|
2012-03-01 |
2016-08-02 |
Us Synthetic Corporation |
Polycrystalline diamond compacts including a domed polycrystalline diamond table, and applications therefor
|
|
WO2013130819A1
(en)
|
2012-03-02 |
2013-09-06 |
Drilformance Technologies, Llc |
A drill bit and cutters for a drill bit
|
|
GB201205673D0
(en)
|
2012-03-30 |
2012-05-16 |
Element Six Abrasives Sa |
Polycrystalline superhard material and method of making same
|
|
GB201210876D0
(en)
|
2012-06-20 |
2012-08-01 |
Element Six Abrasives Sa |
Inserts and method for making same
|
|
USD712941S1
(en)
|
2012-06-27 |
2014-09-09 |
Mingzhong Mo |
Diamond cutter
|
|
US9388639B2
(en)
*
|
2012-10-26 |
2016-07-12 |
Baker Hughes Incorporated |
Rotatable cutting elements and related earth-boring tools and methods
|
|
GB201223528D0
(en)
|
2012-12-31 |
2013-02-13 |
Element Six Abrasives Sa |
A cutter element for rock removal applications
|
|
GB201223530D0
(en)
|
2012-12-31 |
2013-02-13 |
Element Six Abrasives Sa |
A cutter element for rock removal applications
|
|
USD717847S1
(en)
*
|
2013-10-16 |
2014-11-18 |
Nikken Kosakusho Works, Ltd. |
End mill
|
|
US10022840B1
(en)
|
2013-10-16 |
2018-07-17 |
Us Synthetic Corporation |
Polycrystalline diamond compact including crack-resistant polycrystalline diamond table
|
|
US10287825B2
(en)
|
2014-03-11 |
2019-05-14 |
Smith International, Inc. |
Cutting elements having non-planar surfaces and downhole cutting tools using such cutting elements
|
|
US20150285005A1
(en)
|
2014-04-02 |
2015-10-08 |
Ots International, Inc. |
Rupture Cutters with High Penetration Utility
|
|
US9605488B2
(en)
|
2014-04-08 |
2017-03-28 |
Baker Hughes Incorporated |
Cutting elements including undulating boundaries between catalyst-containing and catalyst-free regions of polycrystalline superabrasive materials and related earth-boring tools and methods
|
|
EP3132108B1
(en)
|
2014-04-16 |
2019-07-03 |
National Oilwell DHT, L.P. |
Downhole drill bit cutting element with chamfered ridge
|
|
US10036209B2
(en)
|
2014-11-11 |
2018-07-31 |
Schlumberger Technology Corporation |
Cutting elements and bits for sidetracking
|
|
WO2016109116A1
(en)
|
2014-12-31 |
2016-07-07 |
Smith International, Inc. |
Cutting elements and drill bits incorporating the same
|
|
US10307891B2
(en)
|
2015-08-12 |
2019-06-04 |
Us Synthetic Corporation |
Attack inserts with differing surface finishes, assemblies, systems including same, and related methods
|
|
CN105156036B
(en)
|
2015-08-27 |
2018-01-05 |
中国石油天然气集团公司 |
Convex ridge type on-plane surface cutting tooth and diamond bit
|
|
US10563464B2
(en)
|
2015-08-27 |
2020-02-18 |
Cnpc Usa Corporation |
Convex ridge type non-planar cutting tooth and diamond drill bit
|
|
US10907416B2
(en)
|
2015-08-27 |
2021-02-02 |
Cnpc Usa Corporation |
Polycrystalline diamond cutter with improved geometry for cooling and cutting evacuation and efficiency and durability
|
|
WO2017087920A1
(en)
|
2015-11-19 |
2017-05-26 |
Smith International, Inc. |
Fixed cutter bits and other downhole tools having non-planar cutting elements thereon
|
|
WO2017095715A1
(en)
|
2015-11-30 |
2017-06-08 |
Smith International, Inc. |
Diamond table on non-planar cutting elements
|
|
WO2017105804A1
(en)
|
2015-12-14 |
2017-06-22 |
Smith International, Inc. |
Cutting elements formed from combinations of materials and bits incorporating the same
|
|
US10480253B2
(en)
|
2015-12-18 |
2019-11-19 |
Baker Hughes, A Ge Company, Llc |
Cutting elements, earth-boring tools including cutting elements, and methods of forming cutting elements
|
|
GB201523149D0
(en)
|
2015-12-31 |
2016-02-17 |
Element Six Uk Ltd |
Super hard constructions & methods of making same
|
|
WO2017127745A1
(en)
|
2016-01-21 |
2017-07-27 |
Truust Neuroimaging, Inc. |
Systems and methods for super-resolving electromagnetic localization and causality
|
|
US10907415B2
(en)
|
2016-03-31 |
2021-02-02 |
Smith International, Inc. |
Multiple ridge cutting element
|
|
GB201608669D0
(en)
|
2016-05-17 |
2016-06-29 |
Element Six Uk Ltd |
Diamond tool piece
|
|
US10508503B2
(en)
|
2016-09-23 |
2019-12-17 |
Baker Hughes, A Ge Company, Llc |
Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools
|
|
KR102437366B1
(en)
|
2017-02-09 |
2022-08-29 |
유에스 신써틱 코포레이션 |
Energy machined polycrystalline diamond compacts and related methods
|
|
US11873684B2
(en)
|
2017-03-14 |
2024-01-16 |
Sf Diamond Co., Ltd. |
Polycrystalline diamond compact
|
|
CN106761428B
(en)
|
2017-03-14 |
2019-04-23 |
河南四方达超硬材料股份有限公司 |
A kind of efficient chip removal preform composite polycrystal-diamond of probing
|
|
CA2997982A1
(en)
|
2017-04-08 |
2018-10-08 |
Epiroc Drilling Tools, Llc |
Hybrid plug drill-out bit
|
|
US10400517B2
(en)
|
2017-05-02 |
2019-09-03 |
Baker Hughes, A Ge Company, Llc |
Cutting elements configured to reduce impact damage and related tools and methods
|
|
US20200087758A1
(en)
|
2017-05-04 |
2020-03-19 |
Sf Diamond Co., Ltd. |
Method for making polycrystalline diamond compacts having curved surface
|
|
CN207453880U
(en)
|
2017-10-16 |
2018-06-05 |
河南四方达超硬材料股份有限公司 |
A kind of multi-functional on-plane surface composite polycrystal-diamond for oil gas drilling
|
|
CN207673290U
(en)
|
2017-11-15 |
2018-07-31 |
河南四方达超硬材料股份有限公司 |
Complicated hard rock stratum probing high impact-resistant type on-plane surface composite polycrystal-diamond
|
|
USD878436S1
(en)
*
|
2017-11-16 |
2020-03-17 |
Us Synthetic Corporation |
Cutting tool
|
|
CN207728311U
(en)
|
2017-12-26 |
2018-08-14 |
中石化江钻石油机械有限公司 |
A kind of diamond compact
|
|
US10641046B2
(en)
|
2018-01-03 |
2020-05-05 |
Baker Hughes, A Ge Company, Llc |
Cutting elements with geometries to better maintain aggressiveness and related earth-boring tools and methods
|
|
US10830000B2
(en)
|
2018-04-25 |
2020-11-10 |
National Oilwell Varco, L.P. |
Extrudate-producing ridged cutting element
|
|
EP3560644B1
(en)
*
|
2018-04-27 |
2022-10-05 |
Seco Tools Ab |
A tool body and a milling tool
|
|
US20190338599A1
(en)
|
2018-05-04 |
2019-11-07 |
Varel International Ind., L.L.C. |
Superhard cutter with spikes
|
|
US20190376346A1
(en)
|
2018-06-11 |
2019-12-12 |
Varel International Ind., L.L.C. |
Spirally and/or radially serrated superhard cutter
|
|
CA3041503A1
(en)
|
2018-06-21 |
2019-12-21 |
Varel International Ind., L.L.C. |
Superhard gouging cutter or shock stud for fixed cutter drill bit
|
|
USD951313S1
(en)
*
|
2018-07-12 |
2022-05-10 |
Halliburton Energy Services, Inc. |
PDC cutter
|
|
CN108661565B
(en)
|
2018-07-13 |
2021-11-16 |
中石化江钻石油机械有限公司 |
Multi-ridge diamond compact
|
|
US10577870B2
(en)
|
2018-07-27 |
2020-03-03 |
Baker Hughes, A Ge Company, Llc |
Cutting elements configured to reduce impact damage related tools and methods—alternate configurations
|
|
US11085243B2
(en)
|
2018-08-02 |
2021-08-10 |
Saudi Arabian Oil Company |
Drill bit cutter
|
|
TWD205296S
(en)
*
|
2018-08-29 |
2020-06-21 |
瑞典商賽可工具公司 |
Milling cutter tool
|
|
USD926846S1
(en)
*
|
2018-08-29 |
2021-08-03 |
Seco Tools Ab |
Milling cutter tool
|
|
USD926847S1
(en)
*
|
2018-08-29 |
2021-08-03 |
Seco Tools Ab |
Milling cutter tool
|
|
BR112021006683A2
(en)
|
2018-10-09 |
2021-07-27 |
Cnpc Usa Corporation |
non-flat cutting tooth of convex ridge type and diamond drill
|
|
USD920401S1
(en)
*
|
2018-11-15 |
2021-05-25 |
Caterpillar Inc. |
Cutting tool
|
|
USD924949S1
(en)
*
|
2019-01-11 |
2021-07-13 |
Us Synthetic Corporation |
Cutting tool
|
|
GB201907970D0
(en)
|
2019-06-04 |
2019-07-17 |
Element Six Uk Ltd |
A cutting element and method of making same
|
|
GB201907976D0
(en)
|
2019-06-04 |
2019-07-17 |
Element Six Uk Ltd |
A cutting element and methods of making same
|
|
US11060358B2
(en)
|
2019-06-19 |
2021-07-13 |
Halliburton Energy Services, Inc. |
Earth-boring drill bit with a depth-of-cut control (DOCC) element including a rolling element
|
|
US11401749B2
(en)
|
2019-07-01 |
2022-08-02 |
Cnpc Usa Corporation |
Cutting element with reduced friction
|
|
CN110500039A
(en)
|
2019-07-10 |
2019-11-26 |
河南四方达超硬材料股份有限公司 |
Polycrystalline diamond compact with extension
|
|
USD969183S1
(en)
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