ClassID:

135349

E21B19/087 - CPC Classification

Classification description:

Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables; Apparatus for feeding the rods or cables ; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods by means of a swinging arm

Recent Application in this class:
#1
20250263988
2025-08-21

COUNTERBALANCE SYSTEMS AND RELATED METHODS FOR CATWALK SYSTEMS

#2
20250154837
2025-05-15

AUTOMATED DRILLING ARRANGEMENT

#3
20240337164
2024-10-10

Counterbalance systems and related methods for catwalk systems

#4
20240218751
2024-07-04

Pivot joint with a rotatable lower portion

#5
20240018833
2024-01-18

Automated apparatus for oil field drilling and workover operations

#6
20230417112
2023-12-28

DEPLOYMENT OF UMBILICAL WITH TUBULAR STRING

#7
20230392454
2023-12-07

Handling device for drilling bars or pipes of different sizes

#8
20230091417
2023-03-23

Control for a retainer of a transfer device for a rod section of a ground drilling device

#9
20220127916
2022-04-28

Rod jack apparatus

#10
20220034176
2022-02-03

Guide arm

#11
20220025715
2022-01-27

Pipe handling system and method

#12
20210277728
2021-09-09

System and method for conducting subterranean operations

#13
20210180406
2021-06-17

Linkage assembly for drilling machine

#14
20210115737
2021-04-22

APPARATUS FOR ROCK HANDLING, ROCK DRILLING UNIT AND METHOD

#15
20210032933
2021-02-04

DUAL ELECTROHYDRAULIC VEHICLE FOR TUNNELLING AND ROOF REINFORCEMENT

#16
20200190920
2020-06-18

High trip rate drilling rig

#17
20200165873
2020-05-28

Drill assembly and valve

#18
20190360285
2019-11-28

Clamp-on single joint manipulator for use with single joint elevator

#19
20190330933
2019-10-31

System and method for conducting subterranean operations

#20
20190234147
2019-08-01

Convertible framework for post hole digger

#21
20190145193
2019-05-16

Tubular delivery arm for a drilling rig

#22
20190106951
2019-04-11

Attachment for making up or breaking out pipe

#23
20190071929
2019-03-07

Local electrical room module for well construction apparatus

#24
20190071828
2019-03-07

Local electrical room module for well construction apparatus

#25
20180283108
2018-10-04

Communicative coupler for a well system

#26
20180245409
2018-08-30

High trip rate drilling rig

#27
20180238127
2018-08-23

HIGH TRIP RATE DRILLING RIG

#28
20180087322
2018-03-29

ROD MOUNTING DEVICE FOR BORING MACHINE

#29
20180080322
2018-03-22

Automated device for drilling a hole in the vault and walls of a tunnel and for installing an anchoring element into said hole

#30
20170370165
2017-12-28

Clamp-on single joint manipulator for use with single joint elevator

#31
20170314351
2017-11-02

Circumferential displacement sucker rod tong

#32
20170175462
2017-06-22

Drill rod changer, rock drilling unit and method of changing drill rods

#33
20170159361
2017-06-08

Method of drilling a ground using a robotic arm

#34
20160356102
2016-12-08

Drill pipe guide system and method

#35
20160251915
2016-09-01

Lifting arm arrangement for lifting a pipe, and a method for operating same lifting arm arrangement

#36
20150330163
2015-11-19

Gripper for a drill string component handling device, method for manoeuvring a gripper, drill string component device and rock drill rig

#37
20150082598
2015-03-26

Attachment for making up or breaking out pipe

#38
20150047904
2015-02-19

UNIVERSAL PIPE DISPATCH FOR DRILL PIPE JOINTS

#39
20150027784
2015-01-29

Rock drill machine with feed leg

#40
20130343838
2013-12-26

Walkway with pipe moving elements mechanism and method

#41
20130343837
2013-12-26

Automated pipe feed mechanism and method

#42
20130343835
2013-12-26

Pipe ejector mechanism and method

#43
20130330151
2013-12-12

Tubular stand building and racking system

#44
20130283589
2013-10-31

Attachment for making up or breaking out pipe

#45
20130014997
2013-01-17

Post hole digger

#46
20120297933
2012-11-29

Attachment for making up or breaking out pipe

#47
20110274500
2011-11-10

Trenchless ducting apparatus frame

#48
20110253361
2011-10-20

Fluid power conducting swivel

#49
20110200412
2011-08-18

Pipe handling apparatus and method

#50
20110048733
2011-03-03

Arrangements, systems, and methods for pipe handling

#51
20100230115
2010-09-16

Pipe connection system

#52
20090321134
2009-12-31

Auger downforce unit for use on tractor 3-point hitch mounted earth augers

#53
20090101361
2009-04-23

Tubular running system

#54
20080245575
2008-10-09

Tubular running tool and method of using same

#55
20080245524
2008-10-09

Tubular running tool and method of using same

#56
20080060818
2008-03-13

LIGHT-WEIGHT SINGLE JOINT MANIPULATOR ARM

#57
20080006400
2008-01-10

Arm for moving flexible lines at a wellsite

#58
20070251728
2007-11-01

Automated arm for positioning of drilling tools such as an iron roughneck

#59
20070251700
2007-11-01

Tubular running system

#60
20070095524
2007-05-03

Pipe gripping clamp

#61
20070017681
2007-01-25

System, lifting device and method for supporting a pipe string

#62
20060249292
2006-11-09

Casing running tool and method of using same

#63
20060118335
2006-06-08

Automated arm for positioning of drilling tools such as an iron roughneck

#64
20060090901
2006-05-04

Arm for moving flexible lines at a well site

#65
20060065404
2006-03-30

Arm for moving flexible lines at a well site

#66
20050135902
2005-06-23

Pipe transfer apparatus

#67
20050047884
2005-03-03

Automated arm for positioning of drilling tools such as an iron roughneck

#68
17248669
2022-06-21

Robot end-effector orientation constraint for pipe tailing path

#69
15869288
2019-04-30

Convertible framework for post hole digger

#70
13966086
2015-11-24

Pipe handling apparatus and method