ClassID:

152927

F16L15/06 - CPC Classification

Classification description:

Screw-threaded joints ; Forms of screw-threads for such joints characterised by the shape of the screw-thread

Recent Application in this class:
#1
20260117602
2026-04-30

PREMIUM THREADED CONNECTIONS AND METHODS OF MAKING AND USING SAME

#2
20260092659
2026-04-02

High Torque Connection With Load Reduction Zone

#3
20260049677
2026-02-19

ASYMMETRIC WEDGE THREAD TUBULAR CONNECTION OPTIMIZED FOR PRESSURE AND TORQUE CONTROL

#4
20260022787
2026-01-22

THREADED COUPLING WITH GAS TIGHT SEALS AND INTERLOCKING DOVETAIL THREADS

#5
20250263987
2025-08-21

CURVILINEAR SEALING SYSTEM

#6
20250257823
2025-08-14

THREADED JOINT

#7
20250092969
2025-03-20

HIGH TORQUE CONNECTION WITH ENHANCED BREAK IN PERFORMANCE

#8
20250012384
2025-01-09

High torque connection with enhanced break in performance

#9
20240384819
2024-11-21

THREADED TUBULAR MEMBERS EMPLOYING METAL-TO-METAL SEALS

#10
20240384604
2024-11-21

THREADED CONNECTION FOR HAMMERING INTERCONNECTED TUBULAR MEMBERS

#11
20240337337
2024-10-10

IMPROVEMENTS TO A JOINT BETWEEN OIL AND GAS PIPE SECTIONS

#12
20240309709
2024-09-19

THREAD FORM FOR DRILL BIT APPLICATION

#13
20240280194
2024-08-22

Threaded Connection

#14
20240229985
2024-07-11

SELF-LOCKING THREADED CONNECTION PARTIALLY IN NON-LOCKING ENGAGEMENT

#15
20240209695
2024-06-27

Connection device for tubular elements

#16
20240159113
2024-05-16

Dimensioning of a threaded axial gap

#17
20240142026
2024-05-02

Pipe connection systems in oil and gas applications

#18
20240044426
2024-02-08

High torque threaded connections with triple taper thread profiles

#19
20240003468
2024-01-04

TUBE FITTING

#20
20230408000
2023-12-21

Threaded tubular connection

#21
20230400126
2023-12-14

SELF-LOCKING THREADED CONNECTION PARTIALLY IN NON-LOCKING ENGAGEMENT

#22
20230383875
2023-11-30

Threaded joint of pipe and method for connecting same

#23
20230383609
2023-11-30

Curvilinear sealing system

#24
20230358259
2023-11-09

Key Thread and Key Thread Systems

#25
20230279730
2023-09-07

Oil country tubular goods casing coupling

#26
20230250902
2023-08-10

Threaded joint

#27
20230250699
2023-08-10

Threaded joint for production tubing

#28
20230243219
2023-08-03

Thread connection for casings

#29
20230146768
2023-05-11

Threaded connection for steel pipe

#30
20230134562
2023-05-04

ASYMMETRIC WEDGE THREAD TUBULAR CONNECTION OPTIMIZED FOR PRESSURE AND TORQUE CONTROL

#31
20230129252
2023-04-27

DRILL PIPE

#32
20230097339
2023-03-30

STAINLESS STEEL PIPE AND METHOD FOR MANUFACTURING SAME

#33
20230082305
2023-03-16

Leak-resistant threaded pipe connection

#34
20230066104
2023-03-02

Self-locking threaded connection partially in non-locking engagement

#35
20230044251
2023-02-09

Threaded joint for pipes

#36
20230041141
2023-02-09

Composite transition fitting

#37
20230030934
2023-02-02

Composite transition fitting

#38
20230027183
2023-01-26

Threaded connection partially in a self-locking engagement with an external shoulder capable to resist elevated torque

#39
20220290784
2022-09-15

Threaded connection for exploration and production of a hydrocarbon well

#40
20220260186
2022-08-18

Threaded connection having a dissymmetrical helical profile

#41
20220259927
2022-08-18

Threaded connection for casing string of an oil well

#42
20220252189
2022-08-11

Universal connector or cap for male and female threaded fittings

#43
20220252188
2022-08-11

Threaded connection for steel pipe

#44
20220235886
2022-07-28

CONNECTOR CAPABLE OF STABLY CONNECTING FLUID PIPELINE

#45
20220235884
2022-07-28

THREADED CONNECTION FOR HAMMERING INTERCONNECTED TUBULAR MEMBERS

#46
20220220813
2022-07-14

Threaded connection for steel pipe

#47
20220163145
2022-05-26

Threaded pipe connections with improved leak tightness

#48
20220163144
2022-05-26

Coupling

#49
20220163142
2022-05-26

Coupling

#50
20220127911
2022-04-28

Leak-resistant threaded pipe connection

#51
20220106842
2022-04-07

Curvilinear sealing system

#52
20220099224
2022-03-31

Thread form and threaded article

#53
20220082189
2022-03-17

Threaded connection for steel pipe

#54
20220074273
2022-03-10

Drilling string, threaded coupling, and rod adaptor for rotary drilling

#55
20210341085
2021-11-04

Threaded connection for steel pipe

#56
20210332917
2021-10-28

Threaded connection for steel pipe

#57
20210254763
2021-08-19

Threaded connection for steel pipes

#58
20210254413
2021-08-19

Multiple tapered threaded connection

#59
20210246737
2021-08-12

Threaded connection for steel pipe

#60
20210238932
2021-08-05

Oil country tubular goods casing coupling

#61
20210231240
2021-07-29

Threaded connection

#62
20210172547
2021-06-10

MULTI PART PLASTIC ASSEMBLY THAT SIMPLIFIES THE APPLICATION OF PRIMER SOLVENTS AND PLASTIC BONDING CEMENTS AND/OR AGENTS TO PLASTIC AND/OR PVC PIPING

#63
20210172261
2021-06-10

Enhanced welded pipe, threaded connections, and methods for achieving the same

#64
20210148493
2021-05-20

Flush joint high torque thread

#65
20210131194
2021-05-06

Disconnecting a stuck drill pipe

#66
20210070512
2021-03-11

Universal storage security implement for cannabis containers

#67
20210048128
2021-02-18

Universal connector or cap for male and female threaded fittings

#68
20210047889
2021-02-18

Coupling for connecting downhole tubulars

#69
20210025523
2021-01-28

Screw joint for oil well pipe

#70
20200408338
2020-12-31

Composite transition fitting

#71
20200408048
2020-12-31

Connection for percussion drilling

#72
20200386351
2020-12-10

Arcuate thread form fit

#73
20200370683
2020-11-26

Threaded joint for oilfield pipes

#74
20200332929
2020-10-22

Threaded joint for steel pipes

#75
20200325736
2020-10-15

THREADED CONNECTION

#76
20200325734
2020-10-15

Threaded connection partially in a self-locking engagement

#77
20200309291
2020-10-01

Tube connection

#78
20200306573
2020-10-01

Nozzle and valve assembly for a fire extinguisher

#79
20200284101
2020-09-10

Curvilinear sealing system

#80
20200224802
2020-07-16

Threaded connection of a duct

#81
20200208761
2020-07-02

Threadform having enlarged grooves

#82
20200173584
2020-06-04

Drill pipe

#83
20200141522
2020-05-07

Threaded Connection for Steel Pipe

#84
20200115965
2020-04-16

Fatigue reducing shouldered connections

#85
20200025315
2020-01-23

Threaded connection for steel pipe

#86
20190368639
2019-12-05

THREADED CONNECTION OF CASING PIPES

#87
20190360619
2019-11-28

Threaded connection

#88
20190338871
2019-11-07

Premium threaded connection and method for making same

#89
20190330930
2019-10-31

Threaded connection for steel pipe

#90
20190271418
2019-09-05

Thread form and threaded article

#91
20190234540
2019-08-01

Universal connector or cap for male and female threaded fittings

#92
20190211952
2019-07-11

Threaded connection with void

#93
20190211631
2019-07-11

Threaded joint for oil country tubular goods

#94
20190195030
2019-06-27

Wedge threadform having crest to root thread compound relief areas

#95
20190195029
2019-06-27

Threadform having crest to root thread compound relief areas

#96
20190128075
2019-05-02

Oil country tubular goods casing coupling

#97
20190093799
2019-03-28

Threaded Connection for Steel Pipe

#98
20190078398
2019-03-14

Threaded connections and downhole tools incorporating the same

#99
20190040978
2019-02-07

Threaded joint for steel pipes

#100
20190032820
2019-01-31

Threaded joint for steel pipe

#101
20190017634
2019-01-17

Tubular coupling

#102
20190008725
2019-01-10

Mechanical friction enhancement for threaded connection incorporating micro-threads

#103
20180363813
2018-12-20

Threaded joint for steel pipe

#104
20180363387
2018-12-20

NEAR-SQUARE MODIFIED BUTTRESS THREAD FORM ENABLING RUN-IN AND RUN-OUT THREADS

#105
20180356014
2018-12-13

Compression resistant threaded connection

#106
20180340378
2018-11-29

Abutments for threaded connections

#107
20180328119
2018-11-15

Curvilinear sealing system

#108
20180313168
2018-11-01

Threaded connection for steel pipe

#109
20180283109
2018-10-04

Threaded connection

#110
20180266593
2018-09-20

THREADED PIPE JOINT

#111
20180259100
2018-09-13

Tubular coupling

#112
20180259099
2018-09-13

Premium threaded connection and method for making same

#113
20180258709
2018-09-13

SCREW JOINT FOR PIPE (AS AMENDED)

#114
20180238119
2018-08-23

Transmission assembly for downhole motor

#115
20180223606
2018-08-09

Threaded tubular connection

#116
20180216783
2018-08-02

Cross-contamination prevention system and related methods

#117
20180216416
2018-08-02

Enhanced welded pipe, threaded connections, and methods for achieving the same

#118
20180178310
2018-06-28

Thread connection for a torch system

#119
20180135783
2018-05-17

Threaded coupling end for a percussion drill string component

#120
20180135782
2018-05-17

Drill rod or adaptor with strengthened spigot coupling

#121
20180106399
2018-04-19

Stress reducing thread form

#122
20180058152
2018-03-01

Sealed pipe joint

#123
20180051835
2018-02-22

Threaded connection

#124
20180010402
2018-01-11

Threaded joint for coupling rods

#125
20170328140
2017-11-16

Torque connector systems, apparatus, and methods

#126
20170321826
2017-11-09

SINGLE LEAD WEDGETHREAD CONNECTION

#127
20170298698
2017-10-19

Multipurpose double abutment sealed connection

#128
20170268298
2017-09-21

Interlock pipe connection

#129
20170254448
2017-09-07

Tubular coupling

#130
20170254156
2017-09-07

Tubular component connection protector

#131
20170198839
2017-07-13

Connecting oil country tubular goods

#132
20170167642
2017-06-15

Tubular coupling

#133
20170146160
2017-05-25

Tubular connection and associated threadform

#134
20170108151
2017-04-20

Threaded joint for steel pipes

#135
20170101828
2017-04-13

Pre-installed anti-rotation key for threaded connectors

#136
20170059063
2017-03-02

Threaded joint

#137
20160369920
2016-12-22

Anti-rotation key for threaded connectors

#138
20160334034
2016-11-17

Gas tight pipe connection of inner and outer pipe parts

#139
20160334033
2016-11-17

Threaded joint for tube

#140
20160319966
2016-11-03

Threaded joint for heavy-walled oil country tubular goods

#141
20160312931
2016-10-27

Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection

#142
20160305585
2016-10-20

Threaded joint for steel pipes

#143
20160281440
2016-09-29

Threaded joint for steel pipes

#144
20160243574
2016-08-25

Sprayer adapter

#145
20160228972
2016-08-11

Thread connection for a torch system

#146
20160195203
2016-07-07

Pipe coupling

#147
20160186899
2016-06-30

TUBULAR CONNECTION WITH SELF-LOCKING THREAD FORM USED IN THE OIL INDUSTRY

#148
20160178095
2016-06-23

Threaded joint for oil country tubular goods

#149
20160161031
2016-06-09

Assembly for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection

#150
20160161030
2016-06-09

Connection structure between pipe body and joint of aluminum alloy drill pipe

#151
20160130885
2016-05-12

Connection structure between pipe body and steel joint of aluminum alloy drill pipe

#152
20160130884
2016-05-12

Threaded joint for oil country tubular goods

#153
20160123509
2016-05-05

Threaded connection

#154
20160123508
2016-05-05

Threaded connection

#155
20160123091
2016-05-05

Threaded joint for oil country tubular goods

#156
20160097478
2016-04-07

Pipe element having a composite pipe and a metal connector

#157
20160097473
2016-04-07

Metal pipe having a connector

#158
20160032663
2016-02-04

Fatigue resistant thread profile with combined curve rounding

#159
20160024856
2016-01-28

Drill string components having multiple-thread joints

#160
20150377391
2015-12-31

Threaded joint for pipes

#161
20150362100
2015-12-17

Rotary shouldered connections and thread design

#162
20150316181
2015-11-05

Threaded connection

#163
20150308591
2015-10-29

Security adapter

#164
20150285009
2015-10-08

Expandable metal-to-metal seal connection

#165
20150252921
2015-09-10

Flush threaded connection and method of forming and using the flush threaded connection

#166
20150240570
2015-08-27

Screw joint for steel pipe

#167
20150191980
2015-07-09

Sealed threaded joint for tubing pipes

#168
20150167869
2015-06-18

Threaded connection

#169
20150096764
2015-04-09

Interlock pipe connection

#170
20150061288
2015-03-05

CONNECTING OIL COUNTRY TUBULAR GOODS

#171
20150027734
2015-01-29

Flexible connections

#172
20150008667
2015-01-08

TIGHTLY THREADED JOINT FOR OIL FIELD PIPES

#173
20140333065
2014-11-13

Threaded tool joint connection

#174
20140326448
2014-11-06

FLEXIBLE CONNECTIONS

#175
20140319832
2014-10-30

Thread structure of an aerator for water faucet outlet

#176
20140284919
2014-09-25

Tubular threaded joint having improved high torque performance

#177
20140265320
2014-09-18

Sealed pipe joint

#178
20140203556
2014-07-24

Assembly for producing a threaded joint for the drilling and operation of hydrocarbon wells, and resulting threaded joint

#179
20140183862
2014-07-03

Threaded connector for larger diameter tubular members

#180
20140182426
2014-07-03

Threaded connection with improved root thread profile

#181
20140116560
2014-05-01

Threaded joint for pipes

#182
20140084582
2014-03-27

Tubular threaded connection

#183
20140049045
2014-02-20

Threaded joint for steel pipes

#184
20130277963
2013-10-24

Threaded connection for drilling and working hydrocarbon wells

#185
20130276294
2013-10-24

Tubular threaded joint having improved high torque performance

#186
20130257037
2013-10-03

Trapezoidal thread form having a wear indicator and high pressure connection fitting comprising same

#187
20130219686
2013-08-29

Step-to-step wedge thread connections and related methods

#188
20130181442
2013-07-18

Threaded joint for pipe

#189
20130147191
2013-06-13

Threaded connection with improved root thread profile

#190
20130119657
2013-05-16

Threaded pipe connector

#191
20130069364
2013-03-21

Threaded connection

#192
20130020072
2013-01-24

Threaded pipe connection with a pressure energized flex-seal

#193
20130015657
2013-01-17

Tubular threaded connection

#194
20120298249
2012-11-29

TUBULAR CONNECTION AND ASSOCIATED THREAD FORM

#195
20120286507
2012-11-15

Threaded connection

#196
20120267170
2012-10-25

Tapered thread configuration with improved durability

#197
20120195713
2012-08-02

FASTENING MEMBER WITH EXTERNAL THREADS AND THREADED FASTENING ASSEMBLY

#198
20120146327
2012-06-14

PIPE CONNECTION

#199
20120119489
2012-05-17

TIGHTLY THREADED JOINT FOR OIL FIELD PIPES

#200
20120104751
2012-05-03

Tubular joint having wedge threads with surface coating

#201
20120098256
2012-04-26

Threaded connections and methods

#202
20120074693
2012-03-29

STEP-TO-STEP WEDGE THREAD CONNECTIONS AND RELATED METHODS

#203
20120074692
2012-03-29

Connecting oil country tubular goods

#204
20120074690
2012-03-29

Step-to-step wedge thread connections and related methods

#205
20120056423
2012-03-08

Plastic female screw connector using injection molding

#206
20120043756
2012-02-23

Tubular threaded connection

#207
20120038147
2012-02-16

Wedge threads with a solid lubricant coating

#208
20120013122
2012-01-19

Threaded connector

#209
20120011912
2012-01-19

Apparatuses and methods for rolling angled threads

#210
20110278838
2011-11-17

Tubular connection with self-locking threading used in the oil industry

#211
20110168286
2011-07-14

Threaded connection

#212
20110156385
2011-06-30

Pipe Connection

#213
20110132486
2011-06-09

High strength thread for tubular composites

#214
20110108149
2011-05-12

MANUFACTURING METHOD, A MANUFACTURING DEVICE AND A PRODUCT OF A LEAD-IN TYPE INTERFERENCE FIT PIPELINE EXTERNAL THREAD

#215
20110101684
2011-05-05

Threaded Pipe Connection with a Pressure Energized Flex Seal

#216
20110101681
2011-05-05

COUPLING MEMBER WITH INTERRUPTED THREAD AND METHOD OF MANUFACTURE

#217
20110095593
2011-04-28

DEVICE FOR A CHILD'S CHAIR

#218
20110084483
2011-04-14

Tubular joint having wedge threads with surface coating

#219
20110084477
2011-04-14

WEDGE THREADS WITH A SOLID LUBRICANT COATING

#220
20110025051
2011-02-03

Threaded joint for steel pipes

#221
20110012349
2011-01-20

Arrow-shaped thread form for tubular connections

#222
20110012347
2011-01-20

Threaded Tool Joint Connection

#223
20100230959
2010-09-16

Low cost, high performance pipe connection

#224
20100171305
2010-07-08

Threaded tubular connection which is resistant to bending stresses

#225
20100156099
2010-06-24

Threads with perturbations

#226
20100140929
2010-06-10

Rock-drilling equipment as well as female and male parts therefor

#227
20100104396
2010-04-29

THREAD, FASTENING SYSTEM, PIPE FITTING AND METHOD FOR MANUFACTURING THREAD

#228
20100078936
2010-04-01

Threaded joint for steel pipes

#229
20100078935
2010-04-01

Threaded joint for steel pipes

#230
20090200798
2009-08-13

Tubular threaded joint

#231
20080073909
2008-03-27

Z-shaped thread form for tubular connections

#232
20080054633
2008-03-06

Scalloped wedge threads

#233
20070236015
2007-10-11

Threaded joint for steel pipes

#234
20070216160
2007-09-20

Threads with perturbations

#235
20070132239
2007-06-14

Threaded connection with wedge segments

#236
20070132238
2007-06-14

Threaded joint for an oil well pipe and method for manufacturing same

#237
20070029797
2007-02-08

Method of forming a high-strength sealed connection for expandable tubulars

#238
20060201669
2006-09-14

Dope relief method for wedge thread connections

#239
20060145480
2006-07-06

Floating wedge thread for tubular connection

#240
20060145477
2006-07-06

Threads with perturbations

#241
20050093250
2005-05-05

High-strength sealed connection for expandable tubulars

#242
17580259
2024-06-25

Threaded connection

#243
16829324
2023-03-28

Box connection for a pin with relieved thread region

#244
16687307
2020-09-15

Flush joint high torque thread

#245
14618920
2016-02-16

Anti-rotation tubular casing connection and threaded pipe connector

#246
14618905
2016-02-16

Coupling with anti-rotational element