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with inserts in form of chisels, blades or the like
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CPC
E21B10/485
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Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21B
EARTH DRILLING
E21B10/00
Drill bits
Current Industry
E21B10/485
with inserts in form of chisels, blades or the like
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Patents Grants
last 30 patents
Information
Patent Grant
Polycrystalline diamond compact table with polycrystalline diamond...
Patent number
12,168,608
Issue date
Dec 17, 2024
SF DIAMOND CO., LTD.
Haijang Fang
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Polycrystalline diamond compact table with polycrystalline diamond...
Patent number
12,103,853
Issue date
Oct 1, 2024
SF DIAMOND CO., LTD.
Haijang Fang
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Polycrystalline diamond compact table with polycrystalline diamond...
Patent number
11,772,977
Issue date
Oct 3, 2023
SF DIAMOND CO., LTD.
Haijang Fang
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Component comprising hard metal composition including fused tungste...
Patent number
11,525,173
Issue date
Dec 13, 2022
H. C. STARCK TUNGSTEN GMBH
Christian Gerk
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Mechanical locking of cutting element with carbide matrix
Patent number
11,492,852
Issue date
Nov 8, 2022
Schlumberger Technology Corporation
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Mining bit and method of manufacturing the bit
Patent number
11,136,831
Issue date
Oct 5, 2021
EHWA DIAMOND INDUSTRIAL CO., LTD.
Ki Ho Kim
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Direct casting of ultrahard insert in bit body
Patent number
11,021,913
Issue date
Jun 1, 2021
Schlumberger Technology Corporation
Yahua Bao
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Core bit designed to control and reduce the cutting forces acting o...
Patent number
10,954,756
Issue date
Mar 23, 2021
Halliburton Energy Services, Inc.
Nuno da Silva
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary drilling tool and method for producing a bore in the ground
Patent number
10,927,624
Issue date
Feb 23, 2021
Bauer Maschinen GmbH
Sebastian Bauer
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mechanical locking of ovoid cutting element with carbide matrix
Patent number
10,871,037
Issue date
Dec 22, 2020
Smith International, Inc.
Ryan Worth Eldredge
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Rotary claw drill bit
Patent number
10,781,641
Issue date
Sep 22, 2020
Sandvik Intellectual Property AB
Hamidreza Gholiof
E21 - EARTH DRILLING MINING
Information
Patent Grant
Earth boring tools having fixed blades and rotatable cutting struct...
Patent number
10,508,500
Issue date
Dec 17, 2019
Baker Hughes, a GE company, LLC
William Schoen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of making diamond mining core drill bit and reamer
Patent number
9,701,042
Issue date
Jul 11, 2017
Diamond Products, Limited
Karl H. Moller
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Tooth for roller crusher
Patent number
9,441,421
Issue date
Sep 13, 2016
Bradken Canada Ltd.
Jonathan Daniel Curlett
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Fixed cutter drill bit with core fragmentation feature
Patent number
9,347,275
Issue date
May 24, 2016
Smith International, Inc.
Michael G. Azar
E21 - EARTH DRILLING MINING
Information
Patent Grant
Bit for drilling wells and associated drilling method
Patent number
8,960,335
Issue date
Feb 24, 2015
Total SA
Abdelhakim Hahati
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting structures for casing component drillout and earth-boring d...
Patent number
8,245,797
Issue date
Aug 21, 2012
Baker Hughes Incorporated
Chad T. Jurica
E21 - EARTH DRILLING MINING
Information
Patent Grant
Earth-boring tools including abrasive cutting structures and relate...
Patent number
8,177,001
Issue date
May 15, 2012
Baker Hughes Incorporated
Eric E. McClain
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting structures for casing component drillout and earth-boring d...
Patent number
7,954,571
Issue date
Jun 7, 2011
Baker Hughes Incorporated
Eric E. McClain
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit for the rotary-percussive drilling of preferably rock, co...
Patent number
5,791,424
Issue date
Aug 11, 1998
Hawera Probst GmbH
Bernhard Moser
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Self-centering polycrystalline diamond cutting rock bit
Patent number
5,655,614
Issue date
Aug 12, 1997
Smith International, Inc.
Michael G. Azar
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bits
Patent number
5,505,272
Issue date
Apr 9, 1996
Ian E. Clark
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
Hollow crown drill with end face cutting members
Patent number
5,417,526
Issue date
May 23, 1995
Hilti Aktiengesellschaft
Maximilian Stock
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Combination drill bit
Patent number
5,176,212
Issue date
Jan 5, 1993
Geir Tandberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit cutting array having discontinuities therein
Patent number
5,147,001
Issue date
Sep 15, 1992
Norton Company
Jacob Chow
E21 - EARTH DRILLING MINING
Information
Patent Grant
Kerf-cutting apparatus for increased drilling rates
Patent number
5,145,017
Issue date
Sep 8, 1992
Exxon Production Research Company
Jesse L. Holster
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling method and rotary drill bit crown
Patent number
5,025,871
Issue date
Jun 25, 1991
Aulette Stewart
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Combination drill bit
Patent number
5,016,718
Issue date
May 21, 1991
Tandberg; Geir
Geir Tandberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for forming diamond cutting elements for a diamond drill bit
Patent number
4,989,578
Issue date
Feb 5, 1991
Maurice P. Lebourg
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Vertical asphalt and concrete miller
Patent number
4,968,101
Issue date
Nov 6, 1990
Emory R. Bossow
B28 - WORKING CEMENT, CLAY, OR STONE
Patents Applications
last 30 patents
Information
Patent Application
POLYCRYSTALLINE DIAMOND COMPACT TABLE WITH POLYCRYSTALLINE DIAMOND...
Publication number
20230416098
Publication date
Dec 28, 2023
SF DIAMOND CO., LTD.
Haijang Fang
C01 - INORGANIC CHEMISTRY
Information
Patent Application
POLYCRYSTALLINE DIAMOND COMPACT TABLE WITH POLYCRYSTALLINE DIAMOND...
Publication number
20230406711
Publication date
Dec 21, 2023
SF DIAMOND CO., LTD.
Haijang Fang
E21 - EARTH DRILLING MINING
Information
Patent Application
POLYCRYSTALLINE DIAMOND COMPACT TABLE WITH POLYCRYSTALLINE DIAMOND...
Publication number
20210009426
Publication date
Jan 14, 2021
SF DIAMOND CO., LTD.
Haijang Fang
C01 - INORGANIC CHEMISTRY
Information
Patent Application
MINING BIT AND METHOD OF MANUFACTURING THE BIT
Publication number
20190284878
Publication date
Sep 19, 2019
EHWA DIAMOND INDUSTRIAL CO., LTD.
Ki Ho KIM
B22 - CASTING POWDER METALLURGY
Information
Patent Application
EARTH BORING TOOLS HAVING FIXED BLADES AND ROTATABLE CUTTING STRUCT...
Publication number
20190063159
Publication date
Feb 28, 2019
BAKER HUGHES, A GE COMPANY, LLC
William Schoen
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING ELEMENT ASSEMBLIES COMPRISING ROTATABLE CUTTING ELEMENTS IN...
Publication number
20190063163
Publication date
Feb 28, 2019
BAKER HUGHES, A GE COMPANY, LLC
John Abhishek Raj Bomidi
E21 - EARTH DRILLING MINING
Information
Patent Application
DIRECT CASTING OF ULTRAHARD INSERT IN BIT BODY
Publication number
20180371844
Publication date
Dec 27, 2018
Smith International, Inc.
Yahua Bao
E21 - EARTH DRILLING MINING
Information
Patent Application
TOOTH FOR ROLLER CRUSHER
Publication number
20140196957
Publication date
Jul 17, 2014
Bradken Canada Ltd.
Jonathan Daniel Curlett
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
Fixed Cutter Drill Bit With Core Fragmentation Feature
Publication number
20130020134
Publication date
Jan 24, 2013
Smith International, Inc.
Michael G. Azar
E21 - EARTH DRILLING MINING
Information
Patent Application
EARTH-BORING TOOLS INCLUDING ABRASIVE CUTTING STRUCTURES AND RELATE...
Publication number
20110198128
Publication date
Aug 18, 2011
BAKER HUGHES INCORPORATED
Eric E. McClain
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH-BORING D...
Publication number
20100187011
Publication date
Jul 29, 2010
Chad T. Jurica
E21 - EARTH DRILLING MINING
Information
Patent Application
BIT FOR DRILLING WELLS AND ASSOCIATED DRILLING METHOD
Publication number
20100133013
Publication date
Jun 3, 2010
TOTAL SA
Abdelhakim Hahati
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH BORING D...
Publication number
20090084608
Publication date
Apr 2, 2009
Eric E. McClain
E21 - EARTH DRILLING MINING
Information
Patent Application
Fixing arrangement
Publication number
20050139396
Publication date
Jun 30, 2005
Karl Kammerer
E21 - EARTH DRILLING MINING
Information
Patent Application
Drilling tool
Publication number
20050084349
Publication date
Apr 21, 2005
Karl Kammerer
E21 - EARTH DRILLING MINING