ClassID:

153474

F16L58/181 - CPC Classification

Classification description:

Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for non-disconnectible pipe joints

Recent Application in this class:
#1
20250271094
2025-08-28

FIELD JOINT METHOD AND APPARATUS

#2
20240426405
2024-12-26

METHODS FOR JOINING LINED PIPES AND ASSOCIATED APPARATUS

#3
20240353050
2024-10-24

ELECTROLYTIC COATING FOR ALUMINUM COMPONENTS WITH WELD JOINTS

#4
20240117916
2024-04-11

Monitoring of Lined Pipeline

#5
20240026993
2024-01-25

PIPELINE JUNCTION COATING

#6
20240019071
2024-01-18

Electrofusion fittings for lined pipes

#7
20240003470
2024-01-04

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

#8
20230213136
2023-07-06

Monitoring of Lined Pipeline

#9
20230052636
2023-02-16

Coated pipe and pipe combination

#10
20220357284
2022-11-10

System and method for internal coating of offshore pipeline weld joints with fluorescent anti-corrosion coatings and wet inspection

#11
20220341515
2022-10-27

Methods for joining lined pipes and associated apparatus

#12
20220252204
2022-08-11

Applicator machine

#13
20220250109
2022-08-11

System and method for field internally coating a pipe joint

#14
20220243859
2022-08-04

Metal pipe, in particular pipe for conveying oil and gas, comprising a metal coating in a transition region

#15
20220154870
2022-05-19

METAL PIPES WITH ANTICORROSIVE POLYOLEFIN COVERING LAYER

#16
20220009154
2022-01-13

Tape Winding Apparatus and Method

#17
20210354158
2021-11-18

Flame coating machine and method

#18
20210331422
2021-10-28

METHOD FOR CONNECTING TWO INDIVIDUAL FLUID TRANSPORT PIPE ELEMENTS USING RIGID SHELLS

#19
20210323018
2021-10-21

Machine and method for making a protective joint about an annular junction portion of a pipeline

#20
20210262605
2021-08-26

Coated pipe and pipe combination

#21
20210148505
2021-05-20

Hybrid mechanically lined pipe methods and apparatus

#22
20210071807
2021-03-11

Reducing the risk of corrosion in pipelines

#23
20210071806
2021-03-11

Reducing the risk of corrosion in pipelines

#24
20200408349
2020-12-31

Electrofusion fittings for lined pipes

#25
20200398362
2020-12-24

Pipeline system of pipe sections with pre-assembled insulating weld backing rings and method of making same

#26
20200354601
2020-11-12

Method for coating a pipeline field joint

#27
20200316876
2020-10-08

Method for connecting two unitary elements of a conduit for transporting fluids by means of a sleeve

#28
20200309310
2020-10-01

Method for producing a double-walled pipe and a double-walled pipe

#29
20200307113
2020-10-01

Method For Connecting Two Individual Fluid Transport Pipe Elements Using Rigid Shells

#30
20200240555
2020-07-30

Device for the internal monolithic insulation of a welded pipeline joint

#31
20200071557
2020-03-05

Extrudable poly(propylene) compositions

#32
20200041062
2020-02-06

Process for lining a steel pipe for the subsea transport of fluids

#33
20190368650
2019-12-05

METHOD FOR THERMALLY INSULATING WELDED JOINTS OF PRE-INSULATED PIPES

#34
20190323647
2019-10-24

Techniques for protecting pipe coatings

#35
20190322061
2019-10-24

Die for casting junctions of a coating of a pipeline

#36
20190301646
2019-10-03

Apparatus and method for lined pipe welding

#37
20190178424
2019-06-13

Device for welded joints in pipework

#38
20190145570
2019-05-16

CORROSION-RESISTANT PIPING AND METHODS OF MANUFACTURING AND USING THE SAME

#39
20190078723
2019-03-14

Coating applicator machine for a pipeline

#40
20190049057
2019-02-14

Strengthened polyethylene tubular member

#41
20190040991
2019-02-07

Heat-shrinkable tube covering

#42
20190040989
2019-02-07

Composite conical sleeve

#43
20190039271
2019-02-07

Method for preparing a two-component article and article obtainable by the method

#44
20190032838
2019-01-31

Field joint coating

#45
20190030786
2019-01-31

Machine and method for installing a coating sheet over welded end sections of pipeline

#46
20180363822
2018-12-20

Electrofusion fitting methods

#47
20180313490
2018-11-01

Method for producing a double-walled pipe and a double-walled pipe

#48
20180306374
2018-10-25

Monitoring of lined pipeline

#49
20180274697
2018-09-27

Repairing or coating subsea pipelines

#50
20180264499
2018-09-20

Apparatus and method for coating pipelines

#51
20180195649
2018-07-12

Techniques for joining lined pipelines

#52
20180119851
2018-05-03

Pipe, pipe connection and pipeline system

#53
20180119850
2018-05-03

Joining lined pipe sections

#54
20180073666
2018-03-15

Method of laying lined pipeline

#55
20180038542
2018-02-08

Metal pipes with anticorrosive polyolefin covering layer

#56
20170370661
2017-12-28

HEAT TRANSFER SYSTEM WITH COATED FLUID CONDUIT

#57
20170343149
2017-11-30

Closure patch

#58
20170232649
2017-08-17

Method of coating a field joint

#59
20170227150
2017-08-10

Techniques for joining lined pipelines

#60
20170210059
2017-07-27

Device and method for installing a tubular joint sleeve for a pipe comprising an inner lining

#61
20170144343
2017-05-25

Field joint coating material and a process for making a field joint

#62
20170129001
2017-05-11

Pipe end forming methods and pipe clamp

#63
20170106574
2017-04-20

SYSTEM AND METHOD OF MANUFACTURING A FIELD JOINT COATING

#64
20170066869
2017-03-09

Thermal insulation

#65
20170066165
2017-03-09

Two-layered injection molded field joint for pipeline applications

#66
20170023159
2017-01-26

Composite strip, and methods for forming a junction between two conduits

#67
20170001365
2017-01-05

Apparatus, work station and method for applying protective sheeting of polymer material to a pipeline, and computer program for implementing the method

#68
20160361748
2016-12-15

Method and kit for joining a tubular member and a pipeline for conveying corrosive products

#69
20160341352
2016-11-24

METHOD FOR ANTI-FIRE INSULATION AND THERMAL INSULATION OF WELDED JOINTS OF PRE-INSULATED PIPES DURING ABOVE-GROUND PIPELINE LAYING

#70
20160341351
2016-11-24

Method for thermally insulating welded joints of pre-insulated pipes

#71
20160341350
2016-11-24

METHOD FOR THERMALLY INSULATING WELDED JOINTS FOR PRE-INSULATED PIPES

#72
20160312930
2016-10-27

TUBULAR ASSEMBLY

#73
20160297125
2016-10-13

Apparatus and techniques for coating pipeline field joints

#74
20160280900
2016-09-29

Soft heterophasic polyolefin composition

#75
20160279847
2016-09-29

Techniques for coating pipes

#76
20160257090
2016-09-08

HEAT SHRINKABLE MULTILAYER SLEEVE

#77
20160257064
2016-09-08

Roller and method for compressing protective sheeting of polymer material around a pipeline

#78
20160236401
2016-08-18

Method and device for applying protective sheeting of polymer material to a pipeline

#79
20160236233
2016-08-18

Apparatus and method for coating pipes

#80
20160161039
2016-06-09

Electrofusion fitting methods

#81
20160146378
2016-05-26

Oxygen barrier film for pipe

#82
20160109052
2016-04-21

High temperature field joints

#83
20160039042
2016-02-11

Method for Friction Welding Subsea Flowline Connectors

#84
20160018049
2016-01-21

High temperature insulated pipelines

#85
20160003406
2016-01-07

Techniques for coating pipes

#86
20150375435
2015-12-31

Techniques for coating pipes

#87
20150266224
2015-09-24

Method, device and work station for applying protective sheeting of polymer material to a pipeline, and computer program for implementing such a method

#88
20150219264
2015-08-06

Apparatus containing multiple sequentially used infrared heating zones for tubular articles

#89
20150114509
2015-04-30

Method of protecting a layered coating on a discrete pipe joint for subsea use

#90
20150101698
2015-04-16

Method of manufacturing a field joint coating

#91
20150076809
2015-03-19

Electrofusion fittings and methods

#92
20150074978
2015-03-19

Polyurethane elastomers for use in subsea pipeline insulation

#93
20150044320
2015-02-12

Mould equipment for pipeline section coating and methods for coating of pipeline sections with moulds

#94
20150042007
2015-02-12

Mould equipment for pipeline section coating and methods for coating of pipeline sections with moulds

#95
20150041017
2015-02-12

High temperature field joints

#96
20150027581
2015-01-29

Pipe, pipe connection and pipeline system

#97
20140375049
2014-12-25

Connections for subsea pipe-in-pipe structures

#98
20140370200
2014-12-18

Device and method for the coating of a surface area of a gap in the coating of a pipeline

#99
20140339810
2014-11-20

Pressure compensated enclosures for submerged joints

#100
20140312100
2014-10-23

Protective polymer layer

#101
20140311606
2014-10-23

Method for filling a gap in the coating of a pipeline coated with a coating, preferably a thermo-insulating coating

#102
20140306445
2014-10-16

Pipeline unit

#103
20140305573
2014-10-16

Method and apparatus for heating heat-shrinkable pipe sleeves

#104
20140290033
2014-10-02

Pipeline unit

#105
20140154409
2014-06-05

Method and device for applying protective sheeting of polymer material to a pipeline

#106
20140103638
2014-04-17

Welded connections of lined pipe

#107
20140016995
2014-01-16

Union between dissimilar materials

#108
20130312915
2013-11-28

Pipe-joining apparatus for producing underwater pipelines

#109
20130284962
2013-10-31

Techniques for joining lined pipelines

#110
20130214034
2013-08-22

Method and apparatus for coating pipes

#111
20130170913
2013-07-04

Techniques for coating pipes

#112
20130168958
2013-07-04

Heat-shrinkable tube covering

#113
20130114945
2013-05-09

Plastic tubular connecting sleeve for a pipe with internal liner

#114
20130019986
2013-01-24

Metal dusting protection for welded pipe assemblies

#115
20120231168
2012-09-13

Apparatus and method for coating pipes or pipe sections

#116
20120231160
2012-09-13

Method of coating pipes or pipe sections

#117
20120222771
2012-09-06

ON-SITE MANUFACTURING OF COMPOSITE PIPELINE

#118
20120145309
2012-06-14

Pipe-joining method and apparatus for producing underwater pipelines, and underwater-pipeline-laying vessel comprising such an apparatus

#119
20120090765
2012-04-19

APPARATUS FOR HEATING OF ELONGATE TUBULAR ARTICLE

#120
20120077027
2012-03-29

REACTIVE COMPATIBILIZED MULTI-LAYER HEAT-SHRINKABLE COATING

#121
20120037297
2012-02-16

APPARATUS AND METHOD FOR HEATING HEAT-SHRINKABLE PIPE SLEEVES

#122
20120031878
2012-02-09

Method for the highly-thick thermal coating of joints by using electrofusion in pipes used for conducting fluids, made of steel tubes externally coated with polyolefins

#123
20110297316
2011-12-08

Low temperature method for forming field joints on undersea pipelines

#124
20110259509
2011-10-27

Pipe Joint Coating

#125
20110248072
2011-10-13

METHOD AND APPARATUS FOR COATING PIPES AND PIPE SECTIONS

#126
20110193339
2011-08-11

Electrofusion fitting

#127
20110159192
2011-06-30

Apparatus for coating pipes

#128
20110079311
2011-04-07

Protective seal for pipeline assembly

#129
20110070389
2011-03-24

MULTI-LAYER WOVEN HEAT-SHRINKABLE COATING

#130
20110036490
2011-02-17

METHOD OF JOINING PIPE SEGMENTS USING AN ADHESIVE COMPOSITION

#131
20100266790
2010-10-21

Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications

#132
20100266788
2010-10-21

Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications

#133
20100266781
2010-10-21

Structural components for oil, gas, exploration, refining and petrochemical applications

#134
20100263761
2010-10-21

Structural components for oil, gas, exploration, refining and petrochemical applications

#135
20100263195
2010-10-21

Methods for joining pipe section in a pipe system containing corrosive petroleum products

#136
20100254687
2010-10-07

Apparatus and method for heating a pipe

#137
20100186881
2010-07-29

Method for forming a protective coat about a cutback between pipes forming part of an underwater pipeline

#138
20100143041
2010-06-10

Pipe-joining method and system for producing underwater pipelines and underwater-pipeline-laying vessel comprising such a system

#139
20100133324
2010-06-03

Method and apparatus for coating pipes

#140
20100065614
2010-03-18

Pipe-joining method and apparatus for producing underwater pipelines, and underwater-pipeline-laying vessel comprising such an apparatus

#141
20090159146
2009-06-25

Styrenic insulation for pipe

#142
20080277921
2008-11-13

Method and a Sleeve for Joining Two Components

#143
20080136171
2008-06-12

Pipeline joint infill and protective sleeve

#144
20080136169
2008-06-12

Pipeline field joint coating for wet insulation with improved adhesion

#145
20080079260
2008-04-03

Pipeline field joint coating for wet insulation field joints

#146
20070277923
2007-12-06

METHOD FOR APPLYING A PROTECTIVE LAYER TO A PIPE JOINT

#147
20070277733
2007-12-06

APPARATUS FOR APPLYING A PROTECTIVE LAYER TO A PIPE JOINT

#148
20070241558
2007-10-18

PROTECTIVE COVER SYSTEM AND METHOD FOR GIRTH-WELDS

#149
20070240816
2007-10-18

PROTECTIVE GIRTH-WELD COVER WITH AIR RELEASE

#150
20070240780
2007-10-18

ADHESION PROMOTING END TREATMENT SYSTEM AND METHOD FOR GIRTH-WELDS

#151
20070227647
2007-10-04

APPARATUS AND METHOD FOR COATING PIPES

#152
20070063509
2007-03-22

Method of applying joint infill cladding to pipe

#153
20070063508
2007-03-22

Joint infill cladding and method of applying same

#154
20070040381
2007-02-22

Method of corrosion protection at a welded pipe joint and resulting joint

#155
20070034316
2007-02-15

Interpenetrating polymer network as coating for metal substrate and method therefor

#156
20060061103
2006-03-23

Pipe joint infill and protective sleeve

#157
20050246883
2005-11-10

Method of and apparatus for interconnecting lined pipes

#158
20050031798
2005-02-10

Method for applying or repairing a coating on a substrate by inductive heating

#159
16994805
2022-05-24

Line pipe field joint shroud