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with a radially-retracting cutter rotating outside the pipe
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Industry
CPC
E21B29/007
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21B
EARTH DRILLING
E21B29/00
Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells
Current Industry
E21B29/007
with a radially-retracting cutter rotating outside the pipe
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Patents Grants
last 30 patents
Information
Patent Grant
Waterjet cutting tool
Patent number
10,875,209
Issue date
Dec 29, 2020
NUWAVE INDUSTRIES INC.
Kade Demuth
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Tubular stabbing guide
Patent number
10,619,431
Issue date
Apr 14, 2020
WEATHERFORD UK LIMITED
Svein Egil Vestersjo
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mobile offshore drilling unit, a method of using such a unit and a...
Patent number
10,450,802
Issue date
Oct 22, 2019
MAERSK DRILLING A/S.
Michael Kannegaard
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mobile offshore drilling unit, a method of using such a unit and a...
Patent number
10,227,824
Issue date
Mar 12, 2019
MAERSK DRILLING A/S
Michael Kannegaard
E21 - EARTH DRILLING MINING
Information
Patent Grant
Oil well improvement system—intrusion detection and respose subsystem
Patent number
9,797,994
Issue date
Oct 24, 2017
Joe Spacek
F42 - AMMUNITION BLASTING
Information
Patent Grant
Oil well improvement system—well monitor and control subsystem
Patent number
9,772,608
Issue date
Sep 26, 2017
Joe Spacek
G05 - CONTROLLING REGULATING
Information
Patent Grant
Water pump pipe cut-off tool
Patent number
9,500,059
Issue date
Nov 22, 2016
Geryl W. Taylor
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of cutting target members using a cutting saw device
Patent number
9,145,749
Issue date
Sep 29, 2015
Tetra Technologies, Inc.
Galen R. Clark
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Oil well improvement system
Patent number
9,085,950
Issue date
Jul 21, 2015
Joe Spacek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting tool
Patent number
8,881,817
Issue date
Nov 11, 2014
Smith International, Inc.
Malcolm Perschke
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore machining device
Patent number
8,800,654
Issue date
Aug 12, 2014
Statoil Petroleum AS
Steinar Wasa Tverlid
E21 - EARTH DRILLING MINING
Information
Patent Grant
Subsea drilling
Patent number
8,590,634
Issue date
Nov 26, 2013
Geoprober Drilling Limited
Anthony S. Bamford
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method of cutting target members using a cutting saw device
Patent number
8,465,227
Issue date
Jun 18, 2013
Tetra Technologies, Inc.
Galen R. Clark
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of cutting target members using a cutting saw device
Patent number
8,109,693
Issue date
Feb 7, 2012
Tetra Technologies, Inc.
Galen R. Clark, II
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of cutting target members using a cutting saw device
Patent number
7,922,424
Issue date
Apr 12, 2011
Tetra Technologies, Inc.
Galen R. Clark, II
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Subsea drilling
Patent number
7,819,204
Issue date
Oct 26, 2010
Geoprober Drilling Limited
Anthony S. Bamford
E21 - EARTH DRILLING MINING
Information
Patent Grant
Overshot cutter with flexible release cage
Patent number
4,099,561
Issue date
Jul 11, 1978
Wilson Industries, Inc.
Paul M. Nelson
E21 - EARTH DRILLING MINING
Information
Patent Grant
3080241
Patent number
3,080,241
Issue date
Mar 5, 1963
E21 - EARTH DRILLING MINING
Information
Patent Grant
2481831
Patent number
2,481,831
Issue date
Sep 13, 1949
E21 - EARTH DRILLING MINING
Information
Patent Grant
2462230
Patent number
2,462,230
Issue date
Feb 22, 1949
E21 - EARTH DRILLING MINING
Information
Patent Grant
2418278
Patent number
2,418,278
Issue date
Apr 1, 1947
E21 - EARTH DRILLING MINING
Information
Patent Grant
2325104
Patent number
2,325,104
Issue date
Jul 27, 1943
E21 - EARTH DRILLING MINING
Information
Patent Grant
2303647
Patent number
2,303,647
Issue date
Dec 1, 1942
E21 - EARTH DRILLING MINING
Information
Patent Grant
2299063
Patent number
2,299,063
Issue date
Oct 13, 1942
E21 - EARTH DRILLING MINING
Information
Patent Grant
2290000
Patent number
2,290,000
Issue date
Jul 14, 1942
E21 - EARTH DRILLING MINING
Information
Patent Grant
2277580
Patent number
2,277,580
Issue date
Mar 24, 1942
E21 - EARTH DRILLING MINING
Information
Patent Grant
2223984
Patent number
2,223,984
Issue date
Dec 3, 1940
E21 - EARTH DRILLING MINING
Information
Patent Grant
2213049
Patent number
2,213,049
Issue date
Aug 27, 1940
E21 - EARTH DRILLING MINING
Information
Patent Grant
2202985
Patent number
2,202,985
Issue date
Jun 4, 1940
E21 - EARTH DRILLING MINING
Information
Patent Grant
2175622
Patent number
2,175,622
Issue date
Oct 10, 1939
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
EXTERNAL INTERVENTION DOWNHOLE DRILLING AND WORKOVER TOOL
Publication number
20240200418
Publication date
Jun 20, 2024
Saudi Arabian Oil Company
Mohammed Ali MADAN
E21 - EARTH DRILLING MINING
Information
Patent Application
MOBILE OFFSHORE DRILLING UNIT, A METHOD OF USING SUCH A UNIT AND A...
Publication number
20190169936
Publication date
Jun 6, 2019
MAERSK DRILLING A/S
Michael KANNEGAARD
E21 - EARTH DRILLING MINING
Information
Patent Application
WATERJET CUTTING TOOL
Publication number
20180361610
Publication date
Dec 20, 2018
NUWAVE INDUSTRIES INC.
Kade DEMUTH
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Application
OIL WELL IMPROVEMENT SYSTEM
Publication number
20120241160
Publication date
Sep 27, 2012
Joe Spacek
E21 - EARTH DRILLING MINING
Information
Patent Application
WELLBORE MACHINING DEVICE
Publication number
20120029702
Publication date
Feb 2, 2012
STATOIL ASA
Steinar Wasa Tverlid
E21 - EARTH DRILLING MINING
Information
Patent Application
CUTTING TOOL
Publication number
20110290487
Publication date
Dec 1, 2011
Smith International, Inc.
Malcolm Perschke
E21 - EARTH DRILLING MINING
Information
Patent Application
EMBEDDED MULTI-STRING WELL HEAD SHEAR
Publication number
20110088911
Publication date
Apr 21, 2011
INTERMOOR, INC.
Charles Brent Boyce
E21 - EARTH DRILLING MINING
Information
Patent Application
SUBSEA DRILLING
Publication number
20110056696
Publication date
Mar 10, 2011
Geoprober Drilling Limited
Anthony S. BAMFORD
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD OF CUTTING TARGET MEMBERS USING A CUTTING SAW DEVICE
Publication number
20090314149
Publication date
Dec 24, 2009
TETRA TECHNOLOGIES, INC.
Galen R. Clark, II
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Subsea Drilling
Publication number
20080121429
Publication date
May 29, 2008
Anthony S. Bamford
E21 - EARTH DRILLING MINING