ClassID:

152820

F16L9/14 - CPC Classification

Classification description:

Rigid pipes Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

Sub-classes:
Recent Application in this class:
#1
20260063225
2026-03-05

Pipeline Sealing Assembly with Pipeline Sleeve and Pipeline Terminals and Method of Making Same

#2
20250367911
2025-12-04

GROUT FREE FIBER ENHANCED COMPOSITE LINER STEEL TUBE FOR CCUS AND WATER INJECTION

#3
20250313984
2025-10-09

ELECTROLYTIC SYSTEM FOR DEFOULING, STRUCTURES COMPRISING SAID SYSTEM AND METHOD FOR DEFOULING A SUBMERGED STRUCTURE

#4
20250305599
2025-10-02

COMPOSITE TUBE ASSEMBLIES AND METHOD OF MANUFACTURING

#5
20250283557
2025-09-11

METHOD FOR PRODUCING TUBE BODY

#6
20250283505
2025-09-11

3D PRINTED FITTINGS AND METHODS OF FORMING THE SAME

#7
20250146600
2025-05-08

COMPOSITE PIPE

#8
20250087978
2025-03-13

EASY PULL ELECTRICAL CONDUIT

#9
20250015320
2025-01-09

DIELECTRIC CONDUIT ASSEMBLIES AND METHODS OF MAKING THEREOF

#10
20240369161
2024-11-07

FOCUS TUBE OUTLET PROTECTORS

#11
20240230183
2024-07-11

MULTILAYER COMPOSITE PIPE AND PIPE ASSEMBLIES INCLUDING REFLECTIVE INSULATION

#12
20240208043
2024-06-27

ROBOT ARM, MANUFACTURING METHOD THEREFOR, AND ROBOT

#13
20240165791
2024-05-23

ROBOT ARM, MANUFACTURING METHOD THEREFOR, AND ROBOT

#14
20240133599
2024-04-25

MULTILAYER COMPOSITE PIPE AND PIPE ASSEMBLIES INCLUDING REFLECTIVE INSULATION

#15
20240060580
2024-02-22

BIODEGRADABLE IRRIGATION PIPE

#16
20230392719
2023-12-07

Cover For A Pipe

#17
20230341076
2023-10-26

CONNECTOR SYSTEM FOR USE IN ULTRA-HIGH VACUUM SYSTEMS

#18
20230220237
2023-07-13

UTILIZATION OF POLYUREA-BASED COATINGS IN ENHANCING STRUCTURAL INTEGRITY OF POLYETHYLENE (PE) / POLYPROPYLENE (PP) PIPES AND PIPE FITTINGS

#19
20220381373
2022-12-01

TUBE BODY INTERMEDIATE AND METHOD FOR PRODUCING TUBE BODY

#20
20220333718
2022-10-20

Ultra-high performance fibre-reinforced concrete pipe for pressurized fluid transport

#21
20220243857
2022-08-04

Pipe assembly including an anchor member for resisting delamination of a liner from a pipe shell

#22
20220221086
2022-07-14

Electrostatic discharge mitigation tubing

#23
20220152584
2022-05-19

GAS-TIGHT, HEAT-PERMEABLE MULTILAYER CERAMIC COMPOSITE TUBE

#24
20220146021
2022-05-12

Pipe structure and method for producing a pipe structure of this type

#25
20220105780
2022-04-07

Fluid pipe for a heating and air conditioning unit

#26
20220099237
2022-03-31

Vacuum Insulated Structure With End Fitting And Method Of Making Same

#27
20220085582
2022-03-17

Easy pull electrical conduit

#28
20220074525
2022-03-10

Fluid transport tubing incorporating a graphene impregnated outer coating

#29
20210231237
2021-07-29

Tubular structure reinforcing

#30
20210215085
2021-07-15

Thermally insulated exhaust system components

#31
20210189807
2021-06-24

Methods of conducting coiled tubing operations

#32
20210123559
2021-04-29

Liner for insulating high temperature process piping against thermal fatigue failure

#33
20210071807
2021-03-11

Reducing the risk of corrosion in pipelines

#34
20210071806
2021-03-11

Reducing the risk of corrosion in pipelines

#35
20210041043
2021-02-11

High strength, stretchable liner, for pipe

#36
20200408336
2020-12-31

Method for manufacturing a composite tube

#37
20200353711
2020-11-12

Composite, process for the production thereof, use of said material and articles comprising the said material

#38
20200284132
2020-09-10

Erosion-resistant inserts for flow equipment

#39
20200277706
2020-09-03

Nanolaminate coatings

#40
20200269558
2020-08-27

Ethylene-vinyl alcohol copolymer composition, melt-forming material, multilayer structure, and multilayer pipe

#41
20200127308
2020-04-23

Dielectric conduit assemblies and methods of making thereof

#42
20200030964
2020-01-30

Robot arm, manufacturing method therefor, and robot

#43
20200011454
2020-01-09

Tube structure with a protected sensor and method for manufacturing a tube structure with a protected sensor

#44
20190376637
2019-12-12

Vacuum insulated structure with end fitting and method of making same

#45
20190338691
2019-11-07

Thermally insulated exhaust system components

#46
20190337851
2019-11-07

PREPARATION OF INURED ASPHALT BLOWN COATING

#47
20190323634
2019-10-24

PREPARATION METHOD AND USE OF HYBRID COMPOSITE PIPES

#48
20190291155
2019-09-26

Tubular element to transfer abrasive materials, in particular concrete, and method to make it

#49
20190177870
2019-06-13

Metal coating device and method for production of double-layered and copper coated pipe

#50
20190154360
2019-05-23

Thermal pyrolytic graphite tube device for directional thermal management

#51
20190092481
2019-03-28

AIR CONDITIONING PIPE AND PRODUCTION METHOD

#52
20190078706
2019-03-14

Device for guiding liquid and production method

#53
20190077069
2019-03-14

Process for the production of a tubular hybrid molding and tubular hybrid molding

#54
20190032420
2019-01-31

WELL CASING AND WELL CASING SYSTEM AND METHOD

#55
20180361711
2018-12-20

INTERNAL ANTICORROSIVE AND ABRASIVE RESISTANT PROTECTION COATING FOR STEEL PIPES

#56
20180356376
2018-12-13

Strain induced face seal

#57
20180340633
2018-11-29

Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength liner

#58
20180306376
2018-10-25

Method for assembling a rigid conduit and associated conduit

#59
20180297675
2018-10-18

Structural object having substrate surfacially protected and integrally clad with metallic glass sheet

#60
20180259115
2018-09-13

Thermally insulating pipes

#61
20180213603
2018-07-26

SEGMENTED TUBES USED IN ANNEALING OF HIGH PURITY SILICON GRANULES

#62
20180147505
2018-05-31

Composite column for use in high pressure liquid chromatography

#63
20180112898
2018-04-26

Air conditioner

#64
20180106414
2018-04-19

Vacuum insulated structure with end fitting and method of making same

#65
20180058612
2018-03-01

Biocompatible tubing for liquid chromatography systems

#66
20180045339
2018-02-15

ULTRATHIN CONCRETE COMPOSITE PIPE WITH ORIENTED AND LOCALIZED FIBER

#67
20180038521
2018-02-08

Hemp-winding composite pipe

#68
20180038167
2018-02-08

Metal matrix compositions and methods for manufacturing same

#69
20180030814
2018-02-01

Method and apparatus for performing operations in fluid conduits

#70
20180003058
2018-01-04

VENTILATION DUCT

#71
20170361246
2017-12-21

Composite column for use in high pressure liquid chromatography

#72
20170307110
2017-10-26

Thermosetting bamboo-wood composite pipe

#73
20170305569
2017-10-26

Pressurized composite fluid lines and method

#74
20170291717
2017-10-12

Composite tubes for a fluid transport system

#75
20170267368
2017-09-21

Fuel pipe of aircraft and aircraft

#76
20170254444
2017-09-07

Biocompatible tubing for liquid chromatography systems

#77
20170227159
2017-08-10

Lining hose for renovating fluid-bearing pipe systems

#78
20170114534
2017-04-27

LIQUID WASTE TREATMENT APPARATUS

#79
20170082221
2017-03-23

AIRCRAFT BLEEDING DUCT IN COMPOSITE MATERIAL RELATED APPLICATION

#80
20170082220
2017-03-23

Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength liner

#81
20170009313
2017-01-12

Method for the production of a seamless, multilayered tubular product, and round or polygonal block for use in this method

#82
20160319970
2016-11-03

Pipe coupling construction, and coupling

#83
20160312923
2016-10-27

Copper and steel composite pipe, manufacturing method, application and welded structure body

#84
20160305579
2016-10-20

Construction of pipes

#85
20160303823
2016-10-20

Structural fabric useful for lining pipe

#86
20160289946
2016-10-06

Apparatus for pressurized conveyance in gravity conduits

#87
20160245429
2016-08-25

Thermosetting bamboo sand composite pressure pipe

#88
20160230670
2016-08-11

Rupture constraint mechanism

#89
20160169420
2016-06-16

Telescopic waterproof tube structure

#90
20160169419
2016-06-16

Systems and methods for insulating a pipe

#91
20160161029
2016-06-09

Fluid conduit

#92
20160116086
2016-04-28

Multi-layered fuel tubing

#93
20160111739
2016-04-21

Hydrogen supply piping and method of manufacturing hydrogen supply piping

#94
20160084425
2016-03-24

Vacuum insulated structure with end fitting and method of making same

#95
20160074865
2016-03-17

SYSTEM AND METHOD OF MARKING ARTICLES COATED WITH A LASER-SENSITIVE MATERIAL

#96
20160068627
2016-03-10

Epoxy resins comprising a pyrazine-containing compound

#97
20160060459
2016-03-03

Metallic pipe having a hydrolysis-resistant layer of a polyamide moulding composition

#98
20160053922
2016-02-25

ENDLESS ON-SITE PIPE MANUFACTURING

#99
20160033058
2016-02-04

Method of producing a composite pipe and such a composite pipe

#100
20160033057
2016-02-04

Heat releasing pipe

#101
20160017589
2016-01-21

Liquid waste treatment apparatus

#102
20160009597
2016-01-14

Corrosion protection for cast iron pipes and method for producing same

#103
20160002806
2016-01-07

Nanolaminate coatings

#104
20150376372
2015-12-31

Resin composition, molded article, multilayered pipe and method for producing the same

#105
20150369399
2015-12-24

HIGH STRENGTH LINER AND METHOD OF USE

#106
20150360820
2015-12-17

Pouring fitting having excellent slipping property for fluid substances

#107
20150330535
2015-11-19

Liner for concrete article

#108
20150323105
2015-11-12

Pipe having resistance to both fire and cold

#109
20150316179
2015-11-05

COMPOSITE TUBULAR STRUCTURES

#110
20150300536
2015-10-22

THREADED PIPE HAVING PROTECTIVE COATING

#111
20150276094
2015-10-01

Composition, tape and composite pipe made therefrom and a method of producing composite pipe

#112
20150252933
2015-09-10

Pipe coupling

#113
20150233518
2015-08-20

Method and apparatus for preserving the long term structural integrity of bonded foam pre-insulated piping systems

#114
20150231667
2015-08-20

Pipe painting process

#115
20150219251
2015-08-06

Multi-layered fuel tubing

#116
20150192228
2015-07-09

PAINT AND EXHAUST SYSTEM COMPONENT WITH THE PAINT

#117
20150167706
2015-06-18

PIPES FOR PIPELINES HAVING INTERNAL COATING AND METHOD FOR APPLYING THE COATING

#118
20150083265
2015-03-26

SELF-ILLUMINATING TUBING

#119
20150050087
2015-02-19

Delivery tube for irrigation and fertilization system and method for manufacturing same

#120
20150000259
2015-01-01

Thermally insulated components for exhaust systems

#121
20140363597
2014-12-11

Duct with electrically conductive coating

#122
20140360617
2014-12-11

LIQUID WASTE TREATMENT APPARATUS

#123
20140360613
2014-12-11

INSTRUMENTATION LINE PROTECTION AND SECUREMENT SYSTEM

#124
20140360611
2014-12-11

Pipe liner having a wireless data transmitter with sensing capabilities

#125
20140332105
2014-11-13

Pipe systems

#126
20140326358
2014-11-06

FLAT WIRE AND METHOD OF MANUFACTURING SAME

#127
20140311616
2014-10-23

STRUCTURE AND METHOD OF MANUFACTURING STRUCTURE

#128
20140311614
2014-10-23

HIGH TEMPERATURE RESISTANT POLYSULFONE INSULATION FOR PIPE

#129
20140291032
2014-10-02

Process for the production of a pipe lined with an inliner

#130
20140290785
2014-10-02

Ventilation duct

#131
20140290784
2014-10-02

REINFORCEMENT LAMINATE HAVING AN ALIGNMENT FEATURE

#132
20140290782
2014-10-02

Multilayer pipe with polyamide layer

#133
20140290033
2014-10-02

Pipeline unit

#134
20140287178
2014-09-25

Polymer compositions with improved retention of properties under mechanical and thermal stresses

#135
20140283942
2014-09-25

METHOD TO MAKE A CURVED TUBULAR ELEMENT TO CONVEY ABRASIVE MATERIALS SUCH AS CONCRETE OR SUCHLIKE, AND CURVED TUBULAR ELEMENT THUS OBTAINED

#136
20140270739
2014-09-18

Pipe assembly and flow assurance system

#137
20140261843
2014-09-18

Construction of pipes

#138
20140261838
2014-09-18

Column filter retainer connector with structural reinforcement and biocompatible fluid passageway

#139
20140246111
2014-09-04

Multi-layered fuel feed pipe

#140
20140238540
2014-08-28

RFID vent tube apparatus, system and methods for vent tube intrusion detection

#141
20140217196
2014-08-07

Electrospray emitter assemblies for microfluidic chromatography apparatus

#142
20140203473
2014-07-24

Multi-layered fuel tubing

#143
20140202575
2014-07-24

METHOD OF RUNNING A CONDUIT IN AN INCINERATION PLANT AND DEVICE WITH SUCH A CONDUIT

#144
20140182737
2014-07-03

Fluid conduit

#145
20140182735
2014-07-03

THERMOPLASTIC EXTRUSION WITH VAPOR BARRIER AND SURFACE SULFONATION

#146
20140174583
2014-06-26

Linepipe with cermet internal liner

#147
20140158599
2014-06-12

Liquid chromatography conduit assemblies having high pressure seals

#148
20140157988
2014-06-12

Chromatography apparatus having diffusion bonded coupler

#149
20140150916
2014-06-05

SURFACES, INCLUDING MICROFLUIDIC CHANNELS, WITH CONTROLLED WETTING PROPERTIES

#150
20140144538
2014-05-29

Fluid Handling Assembly Having a Robust Insert

#151
20140124077
2014-05-08

Pipeline for high pressure cryogenic applications

#152
20140096858
2014-04-10

Apparatus for manufacturing compound powder, method of manufacturing iron-boron compound powder by using the apparatus, boron alloy powder mixture, method of manufacturing the boron alloy powder mixture, combined powder structure, method of manufacturing the combined powder structure, steel pipe, and method of manufacturing the steel pipe

#153
20140090737
2014-04-03

Vacuum insulated structure with end fitting and method of making same

#154
20140083552
2014-03-27

INK COMPOSITION AND PROCESS FOR PRINTING ON LAMINATES

#155
20140069547
2014-03-13

Coating composition

#156
20140069545
2014-03-13

Flow passage component

#157
20140027000
2014-01-30

Pipe liner having a wireless data transmitter with sensing capabilities

#158
20140018476
2014-01-16

Buoyancy control material for subsea main pipelines and high-density buoyancy control material for subsea main pipelines

#159
20140014219
2014-01-16

SHAPED PIPE BODY

#160
20130337166
2013-12-19

METHOD OF FORMING ICE-PHOBIC COATING

#161
20130329333
2013-12-12

Fluid transport system for preventing electrical discharge

#162
20130328307
2013-12-12

Composite tubes for a fluid transport system

#163
20130327888
2013-12-12

Conductive coupling assembly

#164
20130284737
2013-10-31

Graphite foil-bonded device and method for preparing same

#165
20130263960
2013-10-10

PIPE SYSTEM FOR CONDUCTING HIGHLY FLAMMABLE LIQUIDS

#166
20130263443
2013-10-10

Air inversion and steam cure of cured in place liners apparatus

#167
20130255821
2013-10-03

Composite pipe

#168
20130213490
2013-08-22

Hydrate deposit inhibition with surface-chemical combination

#169
20130167965
2013-07-04

COATING COMPOSITIONS, APPLICATIONS THEREOF, AND METHODS OF FORMING

#170
20130133777
2013-05-30

Process for producing insulated jacketed pipes by a continuous production process

#171
20130126035
2013-05-23

ASSEMBLY OF A TUBE MADE FROM COMPOSITE MATERIAL AND A TUBULAR METAL PART

#172
20130126034
2013-05-23

Exhaust subsystem with polymer housing

#173
20130125993
2013-05-23

SYSTEM AND METHOD FOR COATING A METAL PIPE AND COATED PIPE MADE THEREFROM

#174
20130118421
2013-05-16

METHOD FOR PROTECTING HEAT EXCHANGER PIPES IN STEAM BOILER SYSTEMS, MOULDED BODY, HEAT EXCHANGER PIPE AND STEAM BOILER SYSTEM

#175
20130105027
2013-05-02

Articles comprising a hydrate-inhibiting silicone coating

#176
20130056108
2013-03-07

Method of producing a composite pipe and such a composite pipe

#177
20130040087
2013-02-14

Resin composition, molded article, multilayered pipe and method for producing the same

#178
20130025687
2013-01-31

Water self-shutoff tubular

#179
20120315095
2012-12-13

Mortar-coated steel pipes and methods of making the same

#180
20120248766
2012-10-04

Coupling assembly with corrosion barrier for GRE-lined premium threaded pipe

#181
20120247566
2012-10-04

TUBULAR PIPE FOR TRANSPORTING LIQUID SODIUM

#182
20120222771
2012-09-06

ON-SITE MANUFACTURING OF COMPOSITE PIPELINE

#183
20120202045
2012-08-09

STRUCTURE AND METHOD OF MANUFACTURING STRUCTURE

#184
20120180897
2012-07-19

Refrigerant line

#185
20120177857
2012-07-12

Multi-layered fuel tubing

#186
20120160361
2012-06-28

Construction and Manufacturing of Long Tubes with Embedded Corrosion- and Wear-Resistant Coatings Applied Directly to the Interior Surfaces

#187
20120087457
2012-04-12

Cladding material, tube including such cladding material and methods of forming the same

#188
20120037256
2012-02-16

Pipe insulation product with charge dissipater

#189
20120024411
2012-02-02

Biocompatible tubing for liquid chromatography systems

#190
20110236615
2011-09-29

MOLDED PART

#191
20110186170
2011-08-04

Refrigerant hose

#192
20110186168
2011-08-04

Range hood pipe grease blockage preventer

#193
20110162333
2011-07-07

RFID vent tube apparatus, system and methods for vent tube intrusion detection

#194
20110123736
2011-05-26

Method of forming ice-phobic coating

#195
20110123413
2011-05-26

Surfaces, including microfluidic channels, with controlled wetting properties

#196
20110056580
2011-03-10

Climate tube, particularly for airplanes

#197
20110048568
2011-03-03

Nano or sub-nano FIR and anion fuel pipes for motor vehicles and ships

#198
20100323213
2010-12-23

Multilayer overlays and methods for applying multilayer overlays

#199
20100313987
2010-12-16

Liquefied natural gas pipeline with near zero coefficient of thermal expansion

#200
20100288181
2010-11-18

IMPACT SENSING MULTI-LAYERED PLASTIC MATERIAL

#201
20100206421
2010-08-19

Fiber-reinforced resin pipe

#202
20100101676
2010-04-29

Composite tubing

#203
20100078090
2010-04-01

IMPACT SENSING MULTI-LAYERED PLASTIC MATERIAL

#204
20100071797
2010-03-25

FIRE RETARDANT AIR HANDLING SYSTEM DUCTWORK COMPONENT AND METHOD OF MANUFACTURE

#205
20090308481
2009-12-17

Cu/Al COMPOSITE PIPE AND A MANUFACTURING METHOD THEREOF

#206
20090274857
2009-11-05

Multi-layered fuel tubing

#207
20090197031
2009-08-06

Aircraft conduit

#208
20080308214
2008-12-18

Use of a Particular Composition for Producing Parts by Filament Winding

#209
20080271805
2008-11-06

Fluid conduit with layered and partial covering material thereon

#210
20080107846
2008-05-08

Composite Hollow Body And Method And Device For Making Same

#211
20080088112
2008-04-17

Manufacturing method for multi-material tube structures

#212
20080014812
2008-01-17

Buoyancy Control Systems for Tubes

#213
20070193676
2007-08-23

Method for producing a highly rigid composite material roller

#214
20070125439
2007-06-07

Composite tubing

#215
20070107794
2007-05-17

Sprinkler tube

#216
20070074779
2007-04-05

Safety piping system

#217
20070029688
2007-02-08

Air inversion and steam cure of cured in place liners apparatus and method

#218
20060197245
2006-09-07

METHOD OF MANUFACTURING HEAT PIPE HAVING SINTERED POWDER WICK

#219
20060151046
2006-07-13

Design and manufacturing method for multi-material tube structures

#220
20060084331
2006-04-20

Buoyancy control systems for tubes

#221
20060010862
2006-01-19

Exhaust pipe for internal combustion engine

#222
20050285317
2005-12-29

Molten metal transfer pipe

#223
20050277347
2005-12-15

Buoyancy control systems for tubes

#224
20050236061
2005-10-27

Sandwich pipes for ultra-deep waters

#225
20050161103
2005-07-28

Design and manufacturing method for multi-material tube structures

#226
17202709
2023-08-15

Composite pipe and tubing manufacturing process

#227
15903247
2018-12-04

Composite tube for an archery bow limb or arrow shaft

#228
15795889
2020-05-19

Special cooling coating design for fossil fuel, nuclear, geothermal, and solar heat driven power plants; for HVAC cooling applications; and for heat rejection systems

#229
15649531
2018-11-06

Multi-layer removable duct liners

#230
15626227
2018-05-01

Internal anticorrosive and abrasive resistant protection coating for steel pipes

#231
14714810
2018-03-13

Pipe for slurry transport

#232
14072932
2016-06-21

Exterior ductwork system

#233
13447273
2016-01-19

Valley shaping reinforcement