ClassID:

135305

E21B17/046 - page 2 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Couplings; joints between rod and bit or between rod and rod with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

Recent Application in this class:
#301
20150144359
2015-05-28

Method of using a downhole force generating tool

#302
20150144329
2015-05-28

Downhole force generating tool

#303
20150136408
2015-05-21

Stab connector assembly and methods usable for establishing a fluid connection

#304
20150096764
2015-04-09

Interlock pipe connection

#305
20150083541
2015-03-26

Anti-stall mechanism

#306
20150083391
2015-03-26

CASING RUNNING TOOL

#307
20150080136
2015-03-19

Coupler for a rotatable cutter assembly

#308
20150028585
2015-01-29

Threadless torque connector

#309
20150008002
2015-01-08

Tapered spline connection for drill pipe, casing, and tubing

#310
20140353045
2014-12-04

DRILL PIPE WITH REPLACEABLE TOOL JOINTS

#311
20140339781
2014-11-20

Receptacle for tubular drilling tools having different diameters

#312
20140326445
2014-11-06

Subterranean tool with sealed electronic passage across multiple sections

#313
20140314475
2014-10-23

Connector

#314
20140217724
2014-08-07

Connection methods and systems

#315
20140186107
2014-07-03

Connecting device

#316
20140166308
2014-06-19

Anti-rotation wedge

#317
20140158373
2014-06-12

Gravel packing apparatus having locking jumper tubes

#318
20140151130
2014-06-05

Pipe joint having coupled adapter

#319
20140103640
2014-04-17

Threaded connector locking device

#320
20140097027
2014-04-10

Self-locking top drive guide system

#321
20140054886
2014-02-27

Tapered spline connection for drill pipe, casing, and tubing

#322
20140050522
2014-02-20

Horizontal directional drill pipe drive connection with locking feature

#323
20130343814
2013-12-26

Quick connect rods

#324
20130247355
2013-09-26

Internal gripping system

#325
20130233534
2013-09-12

Latch assembly

#326
20130228379
2013-09-05

Continuous rotary drilling system and method of use

#327
20130207388
2013-08-15

Pipe coupling for a riser for the connection of an oil or gas well to an oil rig

#328
20130101344
2013-04-25

Variable geometry auger coupler

#329
20130056977
2013-03-07

Connection assembly for tubular goods

#330
20120318495
2012-12-20

Subterranean tool with sealed electronic passage across multiple sections

#331
20120298376
2012-11-29

Tubular coupling device

#332
20120282033
2012-11-08

Rod assembly and device for trenchless rehabilitation of pipelines

#333
20120234560
2012-09-20

Restricted axial movement locking mechanism

#334
20120205908
2012-08-16

Plug connection and pipe section for a drill pipe

#335
20120175077
2012-07-12

Geothermal Heat Exchanger

#336
20120153609
2012-06-21

Pipe connector

#337
20120138368
2012-06-07

Bottom preventer for use in a drilling system

#338
20120067650
2012-03-22

Modular system of mutli-purpose rods for drilling soil

#339
20120049513
2012-03-01

Non threaded drill pipe connection

#340
20120012301
2012-01-19

Electrical wiring for drill pipe, casing, and tubing

#341
20110266062
2011-11-03

Latching configuration for a microtunneling apparatus

#342
20110215568
2011-09-08

Locking pin for coupling components

#343
20110209920
2011-09-01

Insertion coupling for a boring rod assembly and a boring rod assembly

#344
20110180273
2011-07-28

Tapered Spline Connection for Drill Pipe, Casing, and Tubing

#345
20110162852
2011-07-07

Wellhead component coupling system and method

#346
20110162747
2011-07-07

Device for mounting a flexible line on a structure, and related installation and method

#347
20110155471
2011-06-30

Drive pin support

#348
20110127768
2011-06-02

Tubing section coupling

#349
20110120699
2011-05-26

Breech lock mechanisms for blowout preventer and method

#350
20110089685
2011-04-21

System and method for forming a coiled tubing connection

#351
20110068574
2011-03-24

Pipe connector device

#352
20110056701
2011-03-10

Fluid connection to drilling riser

#353
20110036563
2011-02-17

Coupling between wellbore tools having central transmission shafts

#354
20100288556
2010-11-18

Ice Drill

#355
20100282517
2010-11-11

Boring system

#356
20100270789
2010-10-28

Quick connect tool with locking collar

#357
20100264648
2010-10-21

Connection methods and systems

#358
20100200303
2010-08-12

BIT ASSEMBLY

#359
20100196089
2010-08-05

Rod coupling having a pin

#360
20100155144
2010-06-24

DRILLING TOOL FOR ROCK

#361
20100150643
2010-06-17

Rod coupling having a sacrificial element

#362
20100116509
2010-05-13

System and method for aligning a component of a borehole assembly

#363
20100071892
2010-03-25

Coiled tubing quick connect

#364
20100044113
2010-02-25

CONNECTION FOR WELL BORE DRILLING TOOLS

#365
20100018772
2010-01-28

Articulated extraction pipe

#366
20090321069
2009-12-31

SYSTEM AND METHOD FOR CONNECTING MULTIPLE STAGE COMPLETIONS

#367
20090152011
2009-06-18

Downhole drive shaft connection

#368
20090127000
2009-05-21

Sectional drive and coupling system

#369
20090102183
2009-04-23

Directional collar for pipe installation

#370
20090060646
2009-03-05

Manual breech lock wireline connector

#371
20090057015
2009-03-05

Apparatus and methods for drilling wellbores that utilize a detachable reamer

#372
20080230218
2008-09-25

Segmented sleeve on a downhole tool string component

#373
20080169094
2008-07-17

Spoolable connector

#374
20080157521
2008-07-03

Anchor pile coupling system

#375
20080099242
2008-05-01

Drill stem coupling and method for a directional drill

#376
20080078584
2008-04-03

Bit assembly for down-hole drills

#377
20080069634
2008-03-20

Safety pin

#378
20080047716
2008-02-28

System and method for forming a coiled tubing connection

#379
20080012317
2008-01-17

Method of locking tubular components in end to end relation

#380
20070254516
2007-11-01

Tube coupling for tube elements

#381
20070235198
2007-10-11

Mechanism and method for connecting ends of metal tubing

#382
20070235183
2007-10-11

Water well casing

#383
20070228728
2007-10-04

Locking pin for coupling components

#384
20070175671
2007-08-02

Rock drill tool, rock drill bit and production method

#385
20070144746
2007-06-28

System and method for connecting multiple stage completions

#386
20070045007
2007-03-01

Connection design and sonde housing assembly for a directional drill

#387
20060278433
2006-12-14

Multi-sectional percussive drill bit assembly

#388
20060278398
2006-12-14

Assembly and method of alternative pumping using hollow rods without tubing

#389
20060082153
2006-04-20

Water well casing

#390
20060070738
2006-04-06

Perforating gun quick connection system

#391
20060000645
2006-01-05

Driver

#392
20050224259
2005-10-13

Coupler and roof drill bit assembly using such coupler

#393
20050183890
2005-08-25

Device for connecting two elements having a substantially cylindrical or tubular shape

#394
20050120813
2005-06-09

Apparatuses for interaction with a subterranean formation, and methods of use thereof

#395
20050072602
2005-04-07

Integral bit retention system

#396
20050045385
2005-03-03

Down-the-hole drill hammer

#397
20050042943
2005-02-24

Method and arrangement for the rapid connection and detachment of connectable elements

#398
20050023831
2005-02-03

Tubing joint of multiple orientations containing electrical wiring

#399
20050022999
2005-02-03

Rod and tubing joint of multiple orientations containing electrical wiring

#400
20050016728
2005-01-27

Perforating gun quick connection system

#401
19172191
2026-05-05

Preventing loss of hydrocarbon well conveyance string upon unintended connector decoupling

#402
19045502
2026-05-05

Drilling head assembly with spring loaded latching system

#403
16532246
2020-05-05

Data transmission system

#404
16427848
2020-03-10

Bi-directional well drilling

#405
16351071
2020-10-27

Tool joint clamp

#406
16117393
2020-02-25

Rod string latching tool without integral release mechanism and method for use of same

#407
15971622
2019-03-26

End fitting for sucker rods

#408
15891816
2020-11-03

Pipe joint

#409
15855793
2018-06-05

End fitting for sucker rods

#410
15453571
2018-06-12

Method and apparatus for efficient bi-rotational drilling

#411
15355681
2019-05-14

Mud motor coupling system

#412
15143024
2017-06-20

Drilling riser joint with integrated multiplexer line

#413
14608144
2016-02-09

Heavy duty riser connector assembly