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E21B12/04
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FIXED CONSTRUCTIONS
E21
Mining
E21B
EARTH DRILLING
E21B12/00
Accessories for drilling tools
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E21B12/04
Drill bit protectors
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Patents Grants
last 30 patents
Information
Patent Grant
Blade cover
Patent number
12,031,386
Issue date
Jul 9, 2024
Schlumberger Technology Corporation
Huimin Song
E21 - EARTH DRILLING MINING
Information
Patent Grant
Piston-based backup assembly for drill bit
Patent number
11,788,362
Issue date
Oct 17, 2023
Halliburton Energy Services, Inc.
Kevin Clark
E21 - EARTH DRILLING MINING
Information
Patent Grant
Ruggedized bidirectional cutting system
Patent number
11,346,159
Issue date
May 31, 2022
FRANK'S INTERNATIONAL LLC.
Lee Morgan Smith
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fixed cutter completions bit
Patent number
10,900,290
Issue date
Jan 26, 2021
VAREL INTERNATIONAL IND., LLC.
Johnathan Walter Howard
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole drilling tools including low friction gage pads with rotat...
Patent number
9,790,749
Issue date
Oct 17, 2017
Halliburton Energy Services, Inc.
Shilin Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for a true geometry, durable rotating drill bit
Patent number
8,601,908
Issue date
Dec 10, 2013
Edward Vezirian
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method and apparatus for a true geometry, durable rotating drill bit
Patent number
8,439,134
Issue date
May 14, 2013
Edward Vezirian
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Earth-boring tools and components thereof including erosion-resista...
Patent number
8,267,203
Issue date
Sep 18, 2012
Baker Hughes Incorporated
James Andy Oxford
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for a true geometry, durable rotating drill bit
Patent number
8,201,646
Issue date
Jun 19, 2012
Edward Vezirian
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Drilling apparatus with reduced exposure of cutters and methods of...
Patent number
8,172,008
Issue date
May 8, 2012
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling apparatus with reduced exposure of cutters and methods of...
Patent number
8,066,084
Issue date
Nov 29, 2011
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling apparatus with reduced exposure of cutters and methods of...
Patent number
7,814,990
Issue date
Oct 19, 2010
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Ice auger covering apparatus
Patent number
7,228,921
Issue date
Jun 12, 2007
Daniel K. Houg
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Drill bits with reduced exposure of cutters
Patent number
7,096,978
Issue date
Aug 29, 2006
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bits with reduced exposure of cutters
Patent number
6,935,441
Issue date
Aug 30, 2005
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bits with controlled exposure of cutters
Patent number
6,779,613
Issue date
Aug 24, 2004
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus and method for remote adjustment of drill string centerin...
Patent number
6,615,921
Issue date
Sep 9, 2003
ABB Vetco Gray Inc.
Richard P. Whitelaw
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drag-type casing mill/drill bit
Patent number
6,568,492
Issue date
May 27, 2003
Varel International, Inc.
Gary M. Thigpen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit packages and methods
Patent number
6,536,192
Issue date
Mar 25, 2003
Halliburton Energy Services, Inc.
William W. King
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Drill bits with reduced exposure of cutters
Patent number
6,460,631
Issue date
Oct 8, 2002
Baker Hughes Incorporated
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for remote adjustment of drill string centering to preven...
Patent number
6,394,186
Issue date
May 28, 2002
ABB Vetco Gray Inc.
Richard P. Whitelaw
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore primary barrier and related systems
Patent number
6,209,636
Issue date
Apr 3, 2001
Weatherford/Lamb, Inc.
John D. Roberts
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore milling methods
Patent number
6,202,752
Issue date
Mar 20, 2001
Weatherford/Lamb, Inc.
Marc David Kuck
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore milling method
Patent number
6,112,812
Issue date
Sep 5, 2000
Weatherford/Lamb, Inc.
Thurman B. Carter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore milling
Patent number
6,070,665
Issue date
Jun 6, 2000
Weatherford/Lamb, Inc.
Teme Singleton
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore anchor system
Patent number
6,035,939
Issue date
Mar 14, 2000
Weatherford/Lamb, Inc.
Thurman B. Carter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore milling and drilling
Patent number
5,887,655
Issue date
Mar 30, 1999
Weatherford/Lamb, Inc.
David M. Haugen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore milling-- drilling
Patent number
5,887,668
Issue date
Mar 30, 1999
Weatherford/Lamb, Inc.
David M. Haugen
E21 - EARTH DRILLING MINING
Information
Patent Grant
System for securing an item in a tubular channel in a wellbore
Patent number
5,836,387
Issue date
Nov 17, 1998
Weatherford/Lamb, Inc.
Thurman B. Carter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore single trip milling
Patent number
5,826,651
Issue date
Oct 27, 1998
Weatherford/Lamb, Inc.
Mark H. Lee
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
PDC Drill Bit with Swing Self-adaptive Cushion Structure
Publication number
20240229563
Publication date
Jul 11, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Yingxin YANG
E21 - EARTH DRILLING MINING
Information
Patent Application
BLADE COVER
Publication number
20240011358
Publication date
Jan 11, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Huimin Song
E21 - EARTH DRILLING MINING
Information
Patent Application
Piston-Based Backup Assembly For Drill Bit
Publication number
20230184042
Publication date
Jun 15, 2023
Halliburton Energy Services, Inc.
Kevin Clark
E21 - EARTH DRILLING MINING
Information
Patent Application
FIXED CUTTER COMPLETIONS BIT
Publication number
20200003014
Publication date
Jan 2, 2020
VAREL INTERNATIONAL IND., L.L.C.
JOHNATHAN WALTER HOWARD
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILL BIT HAVING REGENERATIVE NANOFILMS
Publication number
20150267472
Publication date
Sep 24, 2015
Halliburton Energy Services, Inc.
Garrett T. Olsen
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and Apparatus for a True Geometry, Durable Rotating Drill Bit
Publication number
20120298424
Publication date
Nov 29, 2012
Edward Vezirian
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and Apparatus for a True Geometry, Durable Rotating Drill Bit
Publication number
20120204682
Publication date
Aug 16, 2012
Edward Vezirian
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILLING APPARATUS WITH REDUCED EXPOSURE OF CUTTERS AND METHODS OF...
Publication number
20120024609
Publication date
Feb 2, 2012
BAKER HUGHES INCORPORATED
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Application
DOWNHOLE TOOL PROTECTOR APPARATUS AND METHOD
Publication number
20110206492
Publication date
Aug 25, 2011
Keith Scott Gaskin
E21 - EARTH DRILLING MINING
Information
Patent Application
Method and Apparatus for a True Geometry, Durable Rotating Drill Bit
Publication number
20110120780
Publication date
May 26, 2011
Edward Vezirian
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILLING APPARATUS WITH REDUCED EXPOSURE OF CUTTERS AND METHODS OF...
Publication number
20110114392
Publication date
May 19, 2011
BAKER HUGHES INCORPORATED
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Application
EARTH-BORING TOOLS AND COMPONENTS THEREOF INCLUDING EROSION RESISTA...
Publication number
20110031026
Publication date
Feb 10, 2011
James Andy Oxford
E21 - EARTH DRILLING MINING
Information
Patent Application
ACTIVE GAUGE PROTECTION FOR DRILL BITS
Publication number
20100089662
Publication date
Apr 15, 2010
Ulterra Drilling Technologies, L.L.C.
Matthew D. Mumma
E21 - EARTH DRILLING MINING
Information
Patent Application
Drilling apparatus with reduced exposure of cutters
Publication number
20060278436
Publication date
Dec 14, 2006
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill bits with reduced exposure of cutters
Publication number
20050284660
Publication date
Dec 29, 2005
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill bits with reduced exposure of cutters
Publication number
20040216926
Publication date
Nov 4, 2004
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill bits with reduced exposure of cutters
Publication number
20030029642
Publication date
Feb 13, 2003
Mark W. Dykstra
E21 - EARTH DRILLING MINING
Information
Patent Application
Apparatus and method for remote adjustment of drill string centerin...
Publication number
20020148616
Publication date
Oct 17, 2002
ABB Vetco Gray Inc.
Richard P. Whitelaw
E21 - EARTH DRILLING MINING
Information
Patent Application
Mill/drill bit
Publication number
20020121393
Publication date
Sep 5, 2002
Varel International, Inc.
Gary M. Thigpen
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill bit packages and methods
Publication number
20020014425
Publication date
Feb 7, 2002
William W. King
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
Drill bits with reduced exposure of cutters
Publication number
20010030063
Publication date
Oct 18, 2001
Mark W. Dykstra
E21 - EARTH DRILLING MINING