Patents-Review.com
ClassID:

135322 ⎘

E21B17/1064 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Wear protectors; Centralising devices, e.g. stabilisers; Centralising devices with rollers or with a relatively rotating sleeve Pipes or rods with a relatively rotating sleeve

Recent Application in this class:
#1
20250137355
2025-05-01

WELLBORE CLEANING TOOLS

 #2
20240229572
2024-07-11

TORQUE REDUCTION ASSEMBLY

 #3
20240133248
2024-04-25

TORQUE REDUCTION ASSEMBLY

 #4
20220298872
2022-09-22

Drill pipe torque reducer and method

 #5
20210310333
2021-10-07

Extended surface system with helical reamers

 #6
20210222499
2021-07-22

Service connector

 #7
20210017834
2021-01-21

DOWNHOLE PLUG ASSEMBLIES WITH COLLET ADAPTERS AND METHODS THEREOF

 #8
20200325737
2020-10-15

Rotating control device with flexible sleeve

 #9
20200308915
2020-10-01

Apparatus for mounting on a tubular structure

 #10
20200300047
2020-09-24

Drill pipe torque reducer and method

 #11
20200190916
2020-06-18

Full tubing inner-diameter spin-through rod centralizers

 #12
20200063503
2020-02-27

Polycrystalline diamond tubular protection

 #13
20200003011
2020-01-02

Directional drilling systems and methods

 #14
20190301251
2019-10-03

Device to resist rotational forces while drilling a borehole

 #15
20190292855
2019-09-26

Downhole force generating tool

 #16
20190145187
2019-05-16

Float equipment for a wellbore

 #17
20190040693
2019-02-07

Drill pipe torque reducer and method

 #18
20180291695
2018-10-11

Sub assembly

 #19
20180119499
2018-05-03

Apparatus for mounting on a tubular structure

 #20
20180119498
2018-05-03

Connection mechanism

 #21
20180100354
2018-04-12

Method of using a downhole force generating tool

 #22
20180038166
2018-02-08

Downhole force generating tool

 #23
20170370164
2017-12-28

Apparatus for reciprocation and rotation of a conveyance string in a wellbore

 #24
20170254158
2017-09-07

Friction reducing wear band and method of coupling a wear band to a tubular

 #25
20170226809
2017-08-10

Frictional support of seal bore protector

 #26
20170122043
2017-05-04

Device to resist rotational forces while drilling a borehole

 #27
20170074055
2017-03-16

Centralizer

 #28
20160356101
2016-12-08

Anti-friction device of drilling elements

 #29
20160290050
2016-10-06

Downhole drilling motor with an adjustment assembly

 #30
20160201405
2016-07-14

Active stabilization

 #31
20160032962
2016-02-04

Bearing assembly

 #32
20150354303
2015-12-10

Method of using a downhole force generating tool

 #33
20150354282
2015-12-10

Downhole force generating tool

 #34
20150354281
2015-12-10

Downhole force generating tool

 #35
20150337602
2015-11-26

Method of using a downhole force generating tool

 #36
20150315859
2015-11-05

AUTOMATED DECK BUSHING SYSTEM

 #37
20150144359
2015-05-28

Method of using a downhole force generating tool

 #38
20150144329
2015-05-28

Downhole force generating tool

 #39
20150129309
2015-05-14

Downhole stabilizer

 #40
20150041218
2015-02-12

Axis offset cam tool for reverse circulation exploration drilling systems and method of use thereof

 #41
20150013997
2015-01-15

Downhole tool and method

 #42
20150008042
2015-01-08

Friction reducing wear band and method of coupling a wear band to a tubular

 #43
20140224546
2014-08-14

Drill stem element and corresponding drill pipe

 #44
20140182839
2014-07-03

Low-clearance centralizer

 #45
20130140087
2013-06-06

Dual pipe rod assembly section, horizontal drilling device and probe housing

 #46
20130032411
2013-02-07

Methods of forming coatings upon wellbore tools

 #47
20120329684
2012-12-27

Polymeric gel system and methods for making and using same in hydrocarbon recovery

 #48
20120292043
2012-11-22

DOWNHOLE TOOLS

 #49
20120285748
2012-11-15

Bearing assembly

 #50
20120168149
2012-07-05

Progressive Cavity Pump Rod Guide

 #51
20120125689
2012-05-24

Drill pipe tubing and casing protector

 #52
20120061098
2012-03-15

Downhole device

 #53
20110061945
2011-03-17

Durability of downhole tools

 #54
20110017516
2011-01-27

Non-rotating buoyancy modules for sub-sea conduits

 #55
20100252274
2010-10-07

Friction reducing wear band and method of coupling a wear band to a tubular

 #56
20100175923
2010-07-15

ORIENTATION SENSOR FOR DOWNHOLE TOOL

 #57
20100122849
2010-05-20

System and method for preventing slippage and rotation of component alone a tubular shaft

 #58
20090194337
2009-08-06

Spiral ribbed aluminum drillpipe

 #59
20090183885
2009-07-23

Rod guide with improved stator

 #60
20090183869
2009-07-23

PC rod guide with rotor ridges

 #61
20090050375
2009-02-26

STEERABLE DRILL BIT ARRANGEMENT

 #62
20080251252
2008-10-16

Polymeric gel system and methods for making and using same in hydrocarbon recovery

 #63
20080210419
2008-09-04

Centralizer

 #64
20080202749
2008-08-28

Polymeric gel system and use in hydrocarbon recovery

 #65
20070144782
2007-06-28

Apparatus and method of controlling motion and vibration of an NMR sensor in a drilling BHA

 #66
20060231250
2006-10-19

Pipe centralizer and method of forming

 #67
20060124363
2006-06-15

Steerable drill bit arrangement

 #68
20050092527
2005-05-05

Vibration damper systems for drilling with casing

 #69
20050074417
2005-04-07

Polymeric gel system and compositions for treating keratin substrates containing same