ClassID:

153000

F16L23/024 - CPC Classification

Classification description:

Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes

Sub-classes:
Recent Application in this class:
#1
20260002615
2026-01-01

PIPE CONNECTION DEVICE

#2
20250381591
2025-12-18

TUBULAR MEMBER FLANGE ATTACHMENT AND METHODS OF ATTACHING A FLANGE TO A TUBULAR MEMBER

#3
20250341269
2025-11-06

Sliding Connector Spool

#4
20250334214
2025-10-30

CLOSURE ADAPTER

#5
20250155059
2025-05-15

FIXATION MECHANISM FOR HIGH TEMPERATURE SEALS OF TUBES

#6
20250146600
2025-05-08

COMPOSITE PIPE

#7
20250069906
2025-02-27

FITTINGS FOR WAFER CLEANING SYSTEMS

#8
20250067373
2025-02-27

Methodology to Enable the Use of Oxide Dispersion Strengthened Alloys and Precipitation Strengthen Nickel-Based Alloys for Advanced Energy Systems

#9
20250010411
2025-01-09

FLANGE FITTING FOR TUBULAR STRUCTURES

#10
20240410534
2024-12-12

DETECTING ABNORMALITIES IN FLANGES USING EMBEDDED DEVICES AND TINY MACHINE LEARNING

#11
20240377005
2024-11-14

ASSEMBLY OF METAL FLANGE AND RESIN PIPE AND METHOD OF MANUFACTURING ASSEMBLY

#12
20240200700
2024-06-20

Sliding Connector Spool

#13
20240167592
2024-05-23

Adapter Coupling

#14
20240003470
2024-01-04

Composite pipe formed by combining a main portion and a short pipe portion, and connection structure of the same

#15
20230400141
2023-12-14

System including a thermo-structural spacer for air inlet and compressor interface

#16
20230349494
2023-11-02

Sliding connector spool

#17
20230341051
2023-10-26

Coupling structure

#18
20230279977
2023-09-07

Modular duct connection and seal

#19
20230184357
2023-06-15

Connection element for an exhaust system of an internal combustion engine

#20
20230160510
2023-05-25

FLEXIBLE PIPE END PORTION CONNECTION STRUCTURE

#21
20230151914
2023-05-18

TENSIONER AND METHOD OF USING SAME

#22
20230116457
2023-04-13

Mounting a flanged vacuum pump to a vacuum system

#23
20230088516
2023-03-23

Stabilizing face ring joint flange and assembly thereof

#24
20230051711
2023-02-16

Pipe connection with split swivel ring

#25
20230051164
2023-02-16

Fittings for wafer cleaning systems

#26
20220341517
2022-10-27

Method for producing a pipeline arrangement, and pipeline arrangement

#27
20220055159
2022-02-24

Flange fitting for tubular structures

#28
20220010900
2022-01-13

Connector for pipelines and method to connect the connector to a pipeline

#29
20210071787
2021-03-11

Flange grounding device

#30
20210047991
2021-02-18

Fastener-component sub-assembly

#31
20200300393
2020-09-24

Coupling with improved bush-ring connection

#32
20200182256
2020-06-11

Pump casing with integral support flange

#33
20200158270
2020-05-21

Pipeline adapter

#34
20200158267
2020-05-21

End fitting for a composite pipe

#35
20200018431
2020-01-16

Flange fitting for tubular structures

#36
20190285208
2019-09-19

Cable Protective Device for a Subsea Cable in an Offshore Wind Farm

#37
20190277434
2019-09-12

Structural connection between in-line pipes and tubes

#38
20190271420
2019-09-05

Adapter coupling

#39
20190249812
2019-08-15

Pipe fittings having integrated thermoplastic with improved melt-flow characteristics for cured in place pipe systems and associated method of use

#40
20190234170
2019-08-01

Blowout preventer bonnet retention methods and systems

#41
20190232355
2019-08-01

Joint flange using thickness-increased and cutting-processed pipe and method for manufacturing same

#42
20190167971
2019-06-06

Device for aseptically connecting large bore tubing

#43
20190128454
2019-05-02

Adjustable frac flow line

#44
20190101233
2019-04-04

Pinned composite pipe end-fitting

#45
20190078687
2019-03-14

Gasket and flange connection structure for plumbing instrument using the same

#46
20180345168
2018-12-06

Self-draining mount head for transmitter

#47
20180328524
2018-11-15

Pressure pipe connection method and method for constructing pressure pipe with flange

#48
20180313481
2018-11-01

Composite fluid conduit assembly

#49
20180304452
2018-10-25

Combination sheet metal hammer and duet stretcher device

#50
20180292033
2018-10-11

Sealing material and joint

#51
20180156367
2018-06-07

Encapsulation sleeve gasket assembly with removable inner layer

#52
20170356570
2017-12-14

Load bearing clamp for transmitting loads to a shaft

#53
20170284576
2017-10-05

Exhaust collar and method for flexibly attaching an exhaust funnel for an exhaust hood to a vent pipe and exhaust funnel device

#54
20170211734
2017-07-27

Pipe coupling device

#55
20170184226
2017-06-29

Adapter coupling

#56
20170167648
2017-06-15

Tube with coupling

#57
20170101829
2017-04-13

Coupling apparatus for connecting two drill pipe sections and a method of using same

#58
20170037988
2017-02-09

Flange, and a method of manufacturing a flange

#59
20160211633
2016-07-21

Rotating contactor for a motor vehicle steering column

#60
20160208969
2016-07-21

SEALING ASSEMBLY FOR HOSE CONNECTOR

#61
20160131287
2016-05-12

High pressure pipe coupling construction, as well as method for forming said coupling construction

#62
20160018032
2016-01-21

Pipe end seal assembly

#63
20150377392
2015-12-31

Connection joint for pipes to convey gas, compressed air and other fluids

#64
20150292656
2015-10-15

Pressing ring, joint, and valve

#65
20150285413
2015-10-08

Exhaust system having segmented service flange

#66
20150252926
2015-09-10

Separation preventing device of fluid pipe, and pipe joint

#67
20150252925
2015-09-10

Separation preventing device of fluid pipe, and pipe joint

#68
20150204059
2015-07-23

Replacement closet flange

#69
20150176731
2015-06-25

Flanged fittings for pipeline

#70
20150176730
2015-06-25

Face-to-face positive restrained rotating pipe flange

#71
20150115606
2015-04-30

Vacuum pump

#72
20150059911
2015-03-05

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

#73
20150048611
2015-02-19

Slip-on connector to grip and seal on smooth OD pipe/casing and method of use

#74
20150001843
2015-01-01

Removable coupling device for coupling together two flexible pipes

#75
20140367964
2014-12-18

Flange joint connection structure

#76
20140361535
2014-12-11

Connection assembly

#77
20140138947
2014-05-22

Flange, and a method of manufacturing a flange

#78
20140075741
2014-03-20

Hydraulic tensioning flange connector method

#79
20140020905
2014-01-23

Rotary lock block type drilling riser connector

#80
20130285374
2013-10-31

Connecting structure for pressure piping

#81
20130183106
2013-07-18

Conveying pipe and method for producing a conveying pipe

#82
20130106100
2013-05-02

Quick tube connector

#83
20130067648
2013-03-21

Replacement closet flange

#84
20120325357
2012-12-27

PIPE CLAMP DEVICE

#85
20120313368
2012-12-13

Pipe joint restraint apparatus

#86
20120217739
2012-08-30

APPARATUS FOR CONNECTING DOUBLE JACKETED PIPES

#87
20120161440
2012-06-28

Pipe flange forming method

#88
20120131981
2012-05-31

Cold Forged Stub End

#89
20120043755
2012-02-23

System and Method for Relieving Stress at Pipe Connections

#90
20110254267
2011-10-20

Composite flange, duct incorporating a flange and method of making a flange

#91
20110240304
2011-10-06

Riser components and methods for making the same

#92
20110233928
2011-09-29

ROTATABLE FLANGE APPARATUS AND METHOD

#93
20110233927
2011-09-29

Coupling Element

#94
20110187098
2011-08-04

Hydraulic tensioning flange connector

#95
20110109082
2011-05-12

Apparatus for cold joining a coupling element to a pipe

#96
20110037251
2011-02-17

Wellhead pipe coupling

#97
20100314865
2010-12-16

JOINING METAL PIPES

#98
20100295296
2010-11-25

Flanged pipe

#99
20100193514
2010-08-05

TANK FILLER NECK AND METHOD FOR PRODUCING A TANK FILLER NECK

#100
20100193123
2010-08-05

Connection device for connection between pipe and connection member

#101
20090272453
2009-11-05

Transport Pipe for Thick Materials

#102
20090160184
2009-06-25

End Connector For Flexible Pipe

#103
20090121475
2009-05-14

DELIVERY PIPE FOR THE TRANSPORT OF SOLID MATERIAL, AND METHOD OF MAKING A DELIVERY PIPE

#104
20090115186
2009-05-07

DELIVERY PIPE FOR TRANSPORTING SOLID MATERIAL

#105
20090096131
2009-04-16

METHOD OF MAKING A COMPOSITE PRODUCT

#106
20090045621
2009-02-19

Crimp-on pipe connection accessory

#107
20090035501
2009-02-05

COMPOSITE PRODUCT

#108
20080264644
2008-10-30

Method and apparatus for connecting drilling riser strings and compositions thereof

#109
20080226387
2008-09-18

Structure for Connecting End Parts and Vacuum System Using the Structure

#110
20080129045
2008-06-05

WATER PIPE END STRUCTURE AND CONNECTION THEREFOR

#111
20080100063
2008-05-01

Flange coupling member

#112
20080048445
2008-02-28

Integral universal coupling assembly for a fluid distribution system and method of using the same

#113
20070199190
2007-08-30

Method for cold joining a coupling element to a pipe

#114
20070178764
2007-08-02

HIGH-PRESSURE FLUID-FLOW SYSTEM HAVING COMPACT TWO-BOLT AND FOUR-BOLT FLANGED AND MODULAR CONNECTORS

#115
20070056155
2007-03-15

Method of installing flange on tubular body at desired elevation

#116
20070001455
2007-01-04

Fluid connector

#117
20060273589
2006-12-07

Device for the connection of high-pressure conduit pipes

#118
20060202479
2006-09-14

Pressure joint for pipes

#119
20060192384
2006-08-31

Restrained sleeve pipe coupling

#120
20060118327
2006-06-08

Method and arrangement for providing a gas-tight joint

#121
20060054231
2006-03-16

Tube for transporting high-viscosity materials

#122
20050140139
2005-06-30

Restrained sleeve pipe coupling

#123
20050023828
2005-02-03

Pipe joint for refrigeration cycle

#124
19190896
2026-03-31

Coupling assembly and coupling auxiliary assembly

#125
18768901
2025-10-21

Pipe connection device

#126
17671061
2025-04-01

Unions for high pressure flowline components