ClassID:

135323

E21B17/1071 - 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 specially adapted for pump rods, e.g. sucker rods

Recent Application in this class:
#1
20260071504
2026-03-12

COATINGS FOR WEAR SURFACES AND RELATED APPARATUSES, DEVICES, SYSTEMS, AND METHODS

#2
20250341136
2025-11-06

IMPROVED WELL COMPONENT

#3
20250154945
2025-05-15

ROBUST DOWNHOLE PUMP BARREL

#4
20250137331
2025-05-01

ROD GUIDE CONFIGURATIONS FOR SUCKER ROD PUMPS

#5
20250129694
2025-04-24

ANTI-ROTATION DEVICE FOR A ROD ROTATOR OF A RECIPROCATING ROD PUMPING SYSTEM

#6
20250109639
2025-04-03

ROBUST VALVE ROD GUIDE ASSEMBLY

#7
20250109638
2025-04-03

Fallback Preventer System and Associated Methods

#8
20240167345
2024-05-23

VALVE ROD GUIDES FOR BOTTOM HOLE PUMP ASSEMBLIES, AND RELATED METHODS AND PARTS

#9
20230304363
2023-09-28

COATINGS FOR WEAR SURFACES AND RELATED APPARATUSES, DEVICES, SYSTEMS, AND METHODS

#10
20230220735
2023-07-13

Sucker rod guide

#11
20230126572
2023-04-27

Sucker rod cleaning using inductive heating

#12
20220412339
2022-12-29

Rod rotator assembly for well pumping rod strings

#13
20220268109
2022-08-25

STABILIZER FOR INHIBITING SUCKER ROD BUCKLING DURING COMPRESSION MOMENTS IN ARTIFICIAL LIFT WELLS

#14
20220178214
2022-06-09

Sucker rod couplings and tool joints with polycrystalline diamond elements

#15
20220154539
2022-05-19

Gear rod rotator systems and related systems, sensors, and methods

#16
20220042400
2022-02-10

DRIVE FOR DEEP-WELL SUCKER-ROD PUMPING UNIT

#17
20220018195
2022-01-20

Sucker rod guides

#18
20210355760
2021-11-18

Sliding standoff assembly

#19
20210348453
2021-11-11

Stabilizer for inhibiting sucker rod buckling during compression moments in artificial lift wells

#20
20210324688
2021-10-21

Plug and valve integrated cone valve pump with combined type movable and fixed three cylinders and two spiral centralizers

#21
20210008607
2021-01-14

Sucker rod cleaning using inductive heating

#22
20200347681
2020-11-05

Rod centralizer and solids control assembly

#23
20200340310
2020-10-29

Sucker rod guides

#24
20200340309
2020-10-29

Gear rod rotator systems

#25
20200263508
2020-08-20

CORROSION AND ABRASION RESISTANT SUCKER ROD

#26
20200199945
2020-06-25

Single piece guides

#27
20200190916
2020-06-18

Full tubing inner-diameter spin-through rod centralizers

#28
20200165881
2020-05-28

Centralising assembly for a downhole device, coupling device including a centralising device and method of manufacture

#29
20200131869
2020-04-30

Multi-piece rod guide for wells

#30
20200063503
2020-02-27

Polycrystalline diamond tubular protection

#31
20200018127
2020-01-16

Gear rod rotator systems

#32
20200011327
2020-01-09

Wiper ring assembly with energizing member

#33
20190323495
2019-10-24

Rod clamp assembly and method

#34
20190316430
2019-10-17

MULTI-PIECE ROD GUIDE FOR WELLS

#35
20190136638
2019-05-09

METHODS FOR REPLACING PIN ENDS AND REPAIRING COATINGS ON COATED CONTINUOUS SUCKER RODS

#36
20190040696
2019-02-07

METHOD AND APPARATUS FOR ROD ALIGNMENT

#37
20190003263
2019-01-03

Thread protector for use with sucker rods and oil tools

#38
20180305930
2018-10-25

Composite sucker rod with support sleeve

#39
20180073305
2018-03-15

System for relieving lateral strain on a rod string within a wellbore

#40
20170356252
2017-12-14

Sucker rod shear couplers

#41
20170328169
2017-11-16

Downhole occluder, pressurized sucker rod and operation technique to repair oil pipes

#42
20160362944
2016-12-15

SMOOTH BORE COLLAR

#43
20160354942
2016-12-08

Rod coating stripper

#44
20160208565
2016-07-21

Polished rod alignment system

#45
20160208564
2016-07-21

On-off tool for sucker rod string

#46
20160177635
2016-06-23

Coupling mounted spin-through rod centralizer

#47
20160160579
2016-06-09

SUCKER ROD GUIDE

#48
20160060969
2016-03-03

Sucker rod apparatus and method

#49
20150361731
2015-12-17

Roller device

#50
20150267480
2015-09-24

RATCHET ASSEMBLY

#51
20150252636
2015-09-10

Sucker rod guide

#52
20150144327
2015-05-28

Torque anchor for blocking the rotation of a production string of a well

#53
20150136384
2015-05-21

Wiper and seal assembly for a pump

#54
20150099838
2015-04-09

High heat resistant polyamide for down hole oil components

#55
20140102715
2014-04-17

Sucker rod apparatus and method

#56
20140079470
2014-03-20

Retrievable connector for composite material sucker rod

#57
20140027107
2014-01-30

Continuous rod centralizer

#58
20130316173
2013-11-28

Coated steel sucker rods and process for manufacture of same

#59
20130259647
2013-10-03

Wiper assembly for a pump

#60
20130140247
2013-06-06

Sand check filter

#61
20130140032
2013-06-06

Rod guide and solids control assembly

#62
20130105156
2013-05-02

Artificial lift system for well production

#63
20130098601
2013-04-25

Sucker rod guide

#64
20130039692
2013-02-14

Sucker rod apparatus and method

#65
20130039691
2013-02-14

Sucker rod apparatus and method

#66
20120305234
2012-12-06

Sucker Rod Cleaner

#67
20120292021
2012-11-22

Rod Guide With Wrapping Vanes

#68
20120193089
2012-08-02

Sucker rod centralizer

#69
20120186818
2012-07-26

Sucker Rod Coupling and Method of Wear Prevention in Driven Rotation of a Sucker Rod String in Production Tubing

#70
20120186807
2012-07-26

Multi-tasking rod guide

#71
20120168149
2012-07-05

Progressive Cavity Pump Rod Guide

#72
20120088588
2012-04-12

SUCKER ROD

#73
20090260802
2009-10-22

Centralizer for tubular elements

#74
20090183885
2009-07-23

Rod guide with improved stator

#75
20090183869
2009-07-23

PC rod guide with rotor ridges

#76
20090166036
2009-07-02

Progressive cavity pump rod guide

#77
20080271897
2008-11-06

Apparatus and method for installing a sucker rod guide

#78
20080196235
2008-08-21

CORROSION PROTECTION OF CONTINUOUS SUCKER ROD WELD ZONES

#79
20080053653
2008-03-06

Method of forming and securing a rod guide on a sucker rod

#80
20080035325
2008-02-14

Polished rod rotator

#81
20070151739
2007-07-05

Connector for use in a wellbore

#82
20070102151
2007-05-10

Helical rod guide and method

#83
20060196657
2006-09-07

Apparatus for connecting sucker rods

#84
20060137885
2006-06-29

Sucker rod guide installer

#85
20060124294
2006-06-15

Internal shock absorber bypass plunger

#86
20060124292
2006-06-15

Internal shock absorber plunger

#87
18367413
2025-02-11

Milling rod guides and methods

#88
16372901
2020-03-10

Rotator apparatus and method therefor

#89
14636126
2017-08-15

Multi-tasking rod guide having backflow reducer

#90
14596158
2017-10-10

Polish rod alignment device/stuffing box packing preserver

#91
14517546
2017-03-28

Apparatus for automatically lubricating an oil well sucker rod stuffing box

#92
13964942
2015-12-01

Sucker rod guide