ClassID:

152876

F16L13/02 - CPC Classification

Classification description:

Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints Welded joints

Sub-classes:
Recent Application in this class:
#1
20260146684
2026-05-28

PIPE OR CONDUIT SECTION ALIGNMENT APPARATUS

#2
20260108988
2026-04-23

PIPE ASSEMBLY, MACHINING PATH GENERATION METHOD, AND LASER BEAM MACHINING SYSTEM

#3
20250361957
2025-11-27

JOINING LINED PIPES

#4
20250353093
2025-11-20

METHOD OF JOINING DISSIMILAR MATERIAL PIPES AND JOINED DISSIMILAR MATERIAL PIPE

#5
20250320936
2025-10-16

PIPE CONNECTOR AND METHOD FOR CONNECTING PIPE ENDS WITH LINES AND HARNESSES INSIDE

#6
20250282011
2025-09-11

INTELLIGENT MACHINING LINE FOR PIPE SECTIONS AND METHOD FOR MACHINING SAME

#7
20250277548
2025-09-04

DOWNHOLE TOOL WITH CRACK COMPLIANT SEAL AND MECHANICAL STRENGTHENING FEATURE AT A JOINT THEREOF

#8
20250237331
2025-07-24

COMBINED PIPE FITTING AND AIR CONDITIONING SYSTEM PIPELINE

#9
20250229367
2025-07-17

DOUBLE-TRACK WELDING SYSTEM

#10
20250052352
2025-02-13

HIGH STRENGTH INSULATED TUBE

#11
20250003532
2025-01-02

DOWNHOLE TOOL WITH CRACK COMPLIANT SEAL AND MECHANICAL STRENGTHENING FEATURE AT A JOINT THEREOF

#12
20240426404
2024-12-26

SYSTEM AND METHOD FOR PIPE REPLACEMENT REPAIR

#13
20240353050
2024-10-24

ELECTROLYTIC COATING FOR ALUMINUM COMPONENTS WITH WELD JOINTS

#14
20240353033
2024-10-24

GIRTH WELDED JOINT OF STEEL PIPE

#15
20240301976
2024-09-12

PIPE END FITTING WITH IMPROVED VENTING

#16
20240297617
2024-09-05

CABLING SYSTEMS FOR ROOFTOP PHOTOVOLTAIC SOLAR SYSTEMS

#17
20240280193
2024-08-22

CONNECTION ARRANGEMENT DEVICE AND METHOD FOR FLUID LINE

#18
20240229983
2024-07-11

WELDING PROCESS FOR SIDE POCKET MANDREL

#19
20240224974
2024-07-11

AGRICULTURAL SPRAYER BOOM TRUSS

#20
20240200696
2024-06-20

Pipeline assembly and air conditioning system

#21
20240133493
2024-04-25

WELDING PROCESS FOR SIDE POCKET MANDREL

#22
20240130346
2024-04-25

AGRICULTURAL SPRAYER BOOM TRUSS

#23
20240026993
2024-01-25

PIPELINE JUNCTION COATING

#24
20240019052
2024-01-18

INTERLOCKING SECTIONAL TUBING

#25
20230405743
2023-12-21

Piping spool auto manufacturing system

#26
20230392477
2023-12-07

UMBILICAL

#27
20230212724
2023-07-06

Duplex stainless steel tube and welded joint

#28
20230011161
2023-01-12

Mitigation of Buckling in Subsea Pipe-in-Pipe Systems

#29
20220339733
2022-10-27

Method and system for fusing pipe segments

#30
20220339732
2022-10-27

Method and system for fusing pipe segments

#31
20220316629
2022-10-06

Pipe welding structure

#32
20220252187
2022-08-11

Joint assembly and associated method

#33
20220243844
2022-08-04

METHOD FOR MANUFACTURING WELDED MOLDING, WELDED MOLDING, AND PIPE

#34
20220221092
2022-07-14

Threaded flange for a flexible tank

#35
20220214166
2022-07-07

Method and terminal for generating an index of compatibility between two ends of two tubes, and tube provided with an angular marking

#36
20220176486
2022-06-09

JOINT STRUCTURE, AUTOMOTIVE COMPONENT, AND JOINT STRUCTURE MANUFACTURING METHOD

#37
20220140782
2022-05-05

Cabling systems for rooftop photovoltaic solar systems

#38
20220105690
2022-04-07

Welding joining method and welding joined body

#39
20220090711
2022-03-24

SYSTEM AND METHOD FOR MANUFACTURING PIPES

#40
20220065365
2022-03-03

System and method for the automated opening of a sterile tubing weld

#41
20220034432
2022-02-03

PIPING ARTICLES INCORPORATING AN ALLOY OF COPPER, ZINC, AND SILICON

#42
20220032391
2022-02-03

Long steel pipe for reel-lay installation and method for producing the same

#43
20220018470
2022-01-20

CONNECTOR, METHOD OF MAKING CONNECTOR AND TUBING ASSEMBLY METHOD

#44
20210356058
2021-11-18

Element joint and manufacturing method therefor

#45
20210293362
2021-09-23

Pipe end fitting with improved venting

#46
20210293359
2021-09-23

Work hardened welds and methods for same

#47
20210262593
2021-08-26

Apparatus for high pressure connection

#48
20210254777
2021-08-19

Method for producing a polymer-improved pipe element and pipe element and pipe system comprising same

#49
20210246998
2021-08-12

Abandonment and recovery of pipelines

#50
20210215279
2021-07-15

Coupling for junction of pipe-in-pipe pipeline

#51
20210178703
2021-06-17

Connection structure of resin tube and resin joint and connection method thereof

#52
20210170695
2021-06-10

Welding joining method and welding joined body

#53
20210156503
2021-05-27

Resin-tube end formation method and formation tool

#54
20210154506
2021-05-27

Method for producing a pipe element, particularly a pipe element of a fire-extinguishing facility, pipe element and pipe system comprising same

#55
20210107233
2021-04-15

Method and device for producing a butt-welded joint

#56
20210054952
2021-02-25

Method for assembling pipe-in-pipe pipeline elements for transporting fluids

#57
20210053143
2021-02-25

Method and system for fusing pipe segments

#58
20210048125
2021-02-18

HYDRAULIC PIPE COUPLING STRUCTURE THAT IS FORMED INTEGRALLY AND HAS ENHANCED STRENGTH

#59
20210001566
2021-01-07

Profile connection

#60
20210001563
2021-01-07

Profile connection

#61
20200408335
2020-12-31

Strut bracket for magnetically mounting hardware to a structure

#62
20200393065
2020-12-17

Vacuum insulated tubing for high pressure, high temperature wells, and systems and methods for use thereof, and methods for making

#63
20200271247
2020-08-27

STEEL SHEET, TAILORED BLANK, HOT STAMPED PRODUCT, STEEL PIPE, HOLLOW HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL SHEET, METHOD OF MANUFACTURING TAILORED BLANK, METHOD OF MANUFACTURING HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL PIPE, AND METHOD OF MANUFACTURING HOLLOW HOT STAMPED PRODUCT

#64
20200200308
2020-06-25

System and method for a self-aligning duct

#65
20200166161
2020-05-28

JOINED COMPONENT THROUGH WHICH PROCESS FLUID PASSES IN SEMICONDUCTOR MANUFACTURING PROCESS OR DISPLAY MANUFACTURING PROCESS

#66
20200124210
2020-04-23

Methods for forming a tubing assembly

#67
20200114454
2020-04-16

Work hardened welds and methods for same

#68
20200047422
2020-02-13

Tube joining device

#69
20200016695
2020-01-16

Device and method for joining metallic tubulars of drilling wells

#70
20200011457
2020-01-09

WATER PASSING COMPONENT, AND LASER WELDING DEVICE AND WELDING METHOD THEREOF

#71
20190381594
2019-12-19

Work hardened welds and methods for same

#72
20190341882
2019-11-07

Cabling systems for rooftop photovoltaic solar systems

#73
20190291208
2019-09-26

FIBER LASER-BASE PIPELINE COUPLING SYSTEM AND METHOD OF INSTALLATION OF PIPE SEGMENTS

#74
20190285197
2019-09-19

Apparatus and method for detecting piping alignment using image information and laser sensor

#75
20190247945
2019-08-15

Method for connecting two individual elements of an underwater fluid-transport pipe subject to fatigue

#76
20190242500
2019-08-08

Double skinned pipe assembly

#77
20190240779
2019-08-08

Method of manufacturing tube, and tube

#78
20190210168
2019-07-11

Alignment tool for positioning and aligning tubular sections

#79
20190186657
2019-06-20

Materials and method for joining fiber reinforced pipeline

#80
20190178424
2019-06-13

Device for welded joints in pipework

#81
20190154181
2019-05-23

Center pivot irrigation gooseneck with varying cross-sectional diameters

#82
20190145564
2019-05-16

Pipe end fitting with improved venting

#83
20190145563
2019-05-16

Pipe end fitting with improved venting

#84
20190137024
2019-05-09

Fusible Size-On-Size Or Reduced Branch Fitting For Use With Polyethylene Pipe

#85
20190085642
2019-03-21

Line element with hooped tube and high-strength steel end fittings, and method for upgrading a riser pipe with same

#86
20190030638
2019-01-31

Integrated heat treatment apparatus and method for autogenous welding

#87
20190009353
2019-01-10

Pipe joint, fluid control device, fluid control unit, semiconductor fabrication apparatus and method of forming pipe joint

#88
20180363811
2018-12-20

EXTENDED LENGTH TUBE STRUCTURES

#89
20180356082
2018-12-13

Lighting pole with isolated axial chambers

#90
20180283593
2018-10-04

Weld repair systems and methods for use in a nuclear reactor jet pump

#91
20180243865
2018-08-30

Internal Line-Up Clamps for Welding Pipes

#92
20180209577
2018-07-26

PIPE REINFORCEMENT DEVICE AND PIPE REINFORCEMENT METHOD

#93
20180079037
2018-03-22

Multi-use pipe clamp

#94
20180072513
2018-03-15

Pipe for conveying abrasive materials such as concrete, apparatus and method for producing said pipe

#95
20180066777
2018-03-08

Pipe flange

#96
20180058614
2018-03-01

Clamp apparatus and method for joining pipeline segments

#97
20180031152
2018-02-01

Internally welded pipes

#98
20180001571
2018-01-04

Fluid system and method of manufacture via friction welding

#99
20170350429
2017-12-07

Liquid junction assembly

#100
20170314709
2017-11-02

Flexible hose

#101
20170304953
2017-10-26

Pipeline and manufacturing method thereof

#102
20170298729
2017-10-19

Integrated jacking pipes

#103
20170291267
2017-10-12

Alignment tool for positioning and aligning tubular sections

#104
20170284570
2017-10-05

JOINT UNIT, MAGNETIC ROTATING ARC JOINING METHOD, AND METHOD OF MANUFACTURING JOINT UNIT

#105
20170276260
2017-09-28

Pipe handling system and method of joining pipe sections

#106
20170254445
2017-09-07

Double skinned pipe assembly

#107
20170241577
2017-08-24

Integrated gas purge path for welded sandwich structure

#108
20170227149
2017-08-10

Endoscope having pipe connection structure and producing method thereof

#109
20170210004
2017-07-27

Rotating and adjustable pipe fitting square with force sensitive keepers

#110
20170175940
2017-06-22

Flexible pipe and coupling therefor

#111
20170175460
2017-06-22

Tubular connection assembly for improved fatigue performance of metallic risers

#112
20170159852
2017-06-08

TEMPERATURE-ADJUSTABLE PLASTIC WATER PIPE CONNECTING STRUCTURE AND FOR METHOD FOR CONNECTING THE SAME

#113
20170152975
2017-06-01

ROTATABLE CONNECTOR FOR CONNECTING A FLUID TRANSMISSION PIPE

#114
20170113308
2017-04-27

ALIGNMENT RECTIFYING DEVICE

#115
20170021561
2017-01-26

Method, line and machine for manufacturing a flexible hose/connector assembly of polymeric material

#116
20170002614
2017-01-05

Coiled tubing optimized for long, horizontal completions

#117
20160377503
2016-12-29

Pipe assembly

#118
20160362759
2016-12-15

METHOD FOR PRODUCING HOT-ROLLED SEAMLESS PIPES FROM TRANSFORMABLE STEEL, IN PARTICULAR FOR PIPELINES FOR DEEP-WATER APPLICATIONS, AND CORRESPONDING PIPES

#119
20160332258
2016-11-17

Method of manufacturing tube, and tube

#120
20160305582
2016-10-20

Modular molding

#121
20160305194
2016-10-20

Heat treated heavy weight drill pipe

#122
20160252072
2016-09-01

System and method for insertion and extraction of a device to and from a fluid-containing body

#123
20160114436
2016-04-28

Internal line-up clamps for welding pipes

#124
20160109042
2016-04-21

Method for attaching filler pipe and filler pipe attachment structure

#125
20160101453
2016-04-14

Method for reducing pipe ovality

#126
20160091125
2016-03-31

TRANSITION JOINT FOR WELDING DISSIMILAR MATERIALS

#127
20160084408
2016-03-24

Coupling members for coupling a body of an earth-boring drill tool to a drill string, earth-boring drilling tools including a coupling member, and related methods

#128
20160076676
2016-03-17

CONNECTOR DEVICE, CONNECTOR HAVING THE SAME AND TANK FOR HEAT EXCHANGER HAVING THE CONNECTOR

#129
20160076315
2016-03-17

Method for manufacturing superior 13Cr friction-welded drillrod

#130
20160069487
2016-03-10

FLEXIBLE CONDUIT WITH TAPERED MEMBERS

#131
20160069365
2016-03-10

Tool coupler for a clamping system, in particular for clamping a welding saddle to a plastic pipe, and a clamping system and a method for clamping

#132
20160039043
2016-02-11

Rotary friction welding

#133
20160033181
2016-02-04

Tube coupling and a method for forming a tube coupling

#134
20160018037
2016-01-21

Fluid Manifold Assembly

#135
20150368427
2015-12-24

Composition, connector, process for improving bonding between two or more means for conveying fluids, and system for conveying fluids

#136
20150354736
2015-12-10

Quick connector device

#137
20150330540
2015-11-19

Connections for isolated phase bus enclosure

#138
20150330536
2015-11-19

Flexible pipe and coupling therefor

#139
20150292652
2015-10-15

Weld structure for refrigerant circuit component and welding method for refrigerant circuit component

#140
20150258629
2015-09-17

PROCESS FOR WELDING PIPE CONNECTIONS FOR HIGH TEMPERATURE APPLICATIONS

#141
20150252929
2015-09-10

Flexible pipe and coupling therefor

#142
20150226357
2015-08-13

Device for connecting two fluid-conducting lines

#143
20150198077
2015-07-16

Assembly unit of an exhaust system composed of components made of different materials with improved durability

#144
20150176731
2015-06-25

Flanged fittings for pipeline

#145
20150145241
2015-05-28

MEMBER JOINING METHOD, MEMBER JOINING STRUCTURE, AND JOINT PIPE

#146
20150137512
2015-05-21

Connection pipe and methods of manufacturing and using a connection pipe for an evaporator of a refrigeration device

#147
20150115600
2015-04-30

Flow passage connecting apparatus for heat exchanger

#148
20150110562
2015-04-23

Method of forming a collar on a tubular component through depositing of weld metal and machining this deposit into a collar

#149
20150084333
2015-03-26

METHOD FOR WELDING TWO EDGES OF ONE OR MORE STEEL PARTS TO EACH OTHER INCLUDING A HEAT TREATMENT STEP AFTER THE WELDING STEP: PENSTOCK OBTAINED WITH SUCH A METHOD

#150
20150076809
2015-03-19

Electrofusion fittings and methods

#151
20150059911
2015-03-05

Metal-containing polymeric reinforced pipe, method for manufacturing same and pipeline produced using said pipe

#152
20150008662
2015-01-08

Electrofusion fittings and methods

#153
20150004426
2015-01-01

Pipeline and manufacturing method thereof

#154
20140339818
2014-11-20

CONNECTION SYSTEM FOR PIPES IN REFRIGERATION PLANTS

#155
20140327239
2014-11-06

Coated flanged coupling

#156
20140291983
2014-10-02

WELDING CONNECTION STRUCTURE FOR PIPE

#157
20140265303
2014-09-18

Combination glue hub and mechanical coupler for pipe fittings

#158
20140257001
2014-09-11

Pyrolysis furnace tube joint

#159
20140232105
2014-08-21

Nickel-base radiant tube and method for making the same

#160
20140131997
2014-05-15

Connector unit and connecting system for connecting capillaries, in particular for high-performance liquid chromatography

#161
20140131422
2014-05-15

Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone

#162
20140103638
2014-04-17

Welded connections of lined pipe

#163
20140091128
2014-04-03

Internal pipe line-up clamping module

#164
20140044899
2014-02-13

Assembly including parts made of dissimilar metals and the method of manufacturing the assembly

#165
20140020811
2014-01-23

Modular fitting

#166
20130292936
2013-11-07

Pipe Arrangement and Process

#167
20130291988
2013-11-07

Pipe end fitting with improved venting

#168
20130285371
2013-10-31

Extended length tube structures

#169
20130263796
2013-10-10

High-temperature piping product and method for producing same

#170
20130221664
2013-08-29

LASER WELDING STRUCTURE OF INTANK FILTER FOR MOTOR VEHICLE

#171
20130200611
2013-08-08

Device for connection between a component of an air-conditioning loop and a heat exchanger

#172
20130192706
2013-08-01

Pipe element made of a hoop-wound tube with transition elements

#173
20130136540
2013-05-30

WELDING METHOD OF A FIRST TO A SECOND TUBULAR, THE TUBULARS COMPRISING A CORROSION RESISTANT ALLOY ON AN INTERNAL FACE THEREOF

#174
20130134706
2013-05-30

Coupling system including a safety fastener device

#175
20130106099
2013-05-02

Fusion welding fittings with weld bead cover

#176
20130092280
2013-04-18

Electric resistance welded oil country tubular goods and manufacturing method of electric resistance welded oil country tubular goods

#177
20130068730
2013-03-21

Methods for weld purging

#178
20130019986
2013-01-24

Metal dusting protection for welded pipe assemblies

#179
20130008548
2013-01-10

Pipeline weld repairing method and apparatus

#180
20120298628
2012-11-29

Method of and a welding station for laying a pipeline, with pipe section welded together by internal and external welding

#181
20120192985
2012-08-02

Assembly of coaxial pipes including junction parts with sealed inner cavities, and method for making same

#182
20120152398
2012-06-21

Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone

#183
20120125600
2012-05-24

DEVICE FOR BLOCKING-OFF PART OF THE INTERIOR OF A PIPE

#184
20120114290
2012-05-10

Non-Metallic Raceway for Wiring and Fiber Optic Cable and Method of Forming Raceway

#185
20120091197
2012-04-19

System for identifying joints of elements to be assembled intended for forming an assembly such as, in particular, a pipeline or a tank, and identification method used in such a system

#186
20110316271
2011-12-29

Nickel-base radiant tube and method for making the same

#187
20110277492
2011-11-17

ADDUCTION ASSEMBLY FOR AN AIR CONDITIONING SYSTEM AND MANUFACTURING METHOD THEREOF

#188
20110241333
2011-10-06

Line connector and line set for fluid media

#189
20110107571
2011-05-12

Peening Device for Peening Welds Inside Steel Submarine Pipes, Process for Producing Steel Submarine Pipes Using Such a Device, and Submarine Connection Pipe

#190
20100319888
2010-12-23

Heat exchanger for cooling reaction gas, including a tubular connection between a cooled tube and an uncooled tube

#191
20100282353
2010-11-11

Coaxial Pipe Element In Which The Inner Pipe Is Under Strees, And A Method Of Fabrication

#192
20100230953
2010-09-16

Coaxial pipe element

#193
20100186484
2010-07-29

Apparatus and Method for Isolating or Testing a Pipe Segment with Axial Reinforcement

#194
20100147047
2010-06-17

Method of Making an Udersea Pipe, the Method Including Peening Assembly Welds Inside the Pipe

#195
20100133805
2010-06-03

Coupling members for coupling a body of an earth-boring drill tool to a drill string, earth-boring drilling tools including a coupling member, and related methods

#196
20100119861
2010-05-13

High-strength welded steel pipe including weld metal having high cold-cracking resistance and method for manufacturing the same

#197
20100084377
2010-04-08

Method for Girth Welding Metallic Pipes

#198
20090187076
2009-07-23

Pipe connection structure in endoscope and producing method thereof

#199
20090166338
2009-07-02

Preserving apparatus for welded joint portion and preserving method therefor

#200
20090152865
2009-06-18

Method of producing a tube connection, and tube connection

#201
20090079183
2009-03-26

Non-metallic raceway for wiring and fiber optic cable and method of forming raceway

#202
20080315578
2008-12-25

Junction part for coaxial pipe elements, and a method of joining together coaxial pipe elements

#203
20080272592
2008-11-06

Self-contained keyhold weld fitting and method of use

#204
20080265573
2008-10-30

Pipe/Connector Weld Joint, and Methods of Welding Same

#205
20080265572
2008-10-30

Pipe/connector weld joint, and methods of welding same

#206
20080265562
2008-10-30

Method of welding a pipe/connector joint

#207
20080264909
2008-10-30

Pipe/Connector Weld Joint, and Methods of Welding Same

#208
20080264908
2008-10-30

Pipe/Connector Weld Joint, and Methods of Welding Same

#209
20080156388
2008-07-03

Flexible tube protected against vibrations

#210
20080093848
2008-04-24

Flanged pipe coupling

#211
20080036204
2008-02-14

Electromagnetic pulse welding of fluid joints

#212
20070272340
2007-11-29

Fusion welding fittings with weld bead cover

#213
20070216159
2007-09-20

Piping joint structure

#214
20070145737
2007-06-28

Pipeline assembly with thermal shielding

#215
20060208481
2006-09-21

ELECTROMAGNETIC PULSE WELDING OF FLUID JOINTS

#216
20060196049
2006-09-07

Method for assembling a non-linear composite tube

#217
20060191874
2006-08-31

Pipe/connector weld joint, and methods of welding same

#218
20060087448
2006-04-27

Marking of pipe joints

#219
20060035027
2006-02-16

Method of coating welded tubes

#220
20050173495
2005-08-11

Method of protecting against corrosion at high temperature

#221
20050116468
2005-06-02

Threaded connectors for axial alignment of tubular components, and method of installing pipe sections employing such connectors

#222
19030934
2025-09-09

Intelligent machining line for pipe sections and method for machining same

#223
16570175
2020-09-01

Pipe alignment system

#224
16189351
2021-10-12

Connector, method of making connector and tubing assembly method

#225
16033548
2019-11-19

Method of installation and manufacturing of a stack pipe heat exchanger with integral connectors

#226
15812488
2019-09-17

Pipe alignment system

#227
14242836
2015-06-30

Apparatus for joint sealing using tube expansion and friction welding