ClassID:

152821

F16L9/147 - CPC Classification

Classification description:

Rigid pipes; Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement

Recent Application in this class:
#1
20260071714
2026-03-12

POLYMER COMPOSITE PIPE

#2
20250347365
2025-11-13

METHOD OF JOINING DISSIMILAR MATERIAL PIPES AND DISSIMILAR MATERIAL PIPE

#3
20250314334
2025-10-09

PRODUCTION OF A PIPE WITH A FUNCTIONAL LAYER ON A CORE AND A PIPE

#4
20250198544
2025-06-19

ANTI-OXIDIZED METAL PIPE AND METHOD OF FABRICATING THE SAME

#5
20250180143
2025-06-05

LINED PIPE AND JOINTS THEREOF

#6
20250091323
2025-03-20

MULTILAYER STRUCTURE FOR TRANSPORTING OR STORING GAS OR FOR EXPLOITING OFFSHORE OIL DEPOSITS UNDER THE SEA

#7
20240337346
2024-10-10

PIPE FOR TRANSPORTING FLUIDS WITH CONTROL OF THE BUCKLING OF THE INTERNAL ANTI-CORROSION LINER

#8
20240337340
2024-10-10

MULTIFUNCTIONAL PIPE

#9
20240336027
2024-10-10

METHODS FOR INTELLIGENT COMPOSITE RENEWAL SYSTEM FOR STANDALONE, STORAGE, AND RENEWED PIPELINES, INCLUDING FOR REDUCED CARBON EMISSION AND FOR CONVERSION OF IN PLACE PIPELINES FOR CONVEYANCE OF HYDROGEN AND OTHER CLEAN FUELS

#10
20240209964
2024-06-27

CONVEYING PIPE PART OF A PNEUMATIC MATERIAL CONVEYING SYSTEM, CONVEYING PIPE ARRANGEMENT AND METHOD FOR FORMING A CONVEYING PIPE ARRANGEMENT

#11
20240142038
2024-05-02

SYSTEM AND METHOD FOR A PROCESS TO CREATE IMPROVED PIPING TO SUPRESS THE BUILD UP OF BIOLOGICAL ORGANISMS

#12
20240125507
2024-04-18

VENTILATION CONDUIT

#13
20240060593
2024-02-22

COATED PIPE SECTION AND METHOD FOR COATING A PIPE

#14
20240052954
2024-02-15

FLUID TRANSPORT TUBING INCORPORATING A GRAPHENE IMPREGNATED OUTER COATING

#15
20240035594
2024-02-01

TUBING CONNECTOR FOR COMPOSITE TUBING, COMPOSITE TUBING, AND METHODS OF USING THE SAME

#16
20230392720
2023-12-07

CPVC MULTILAYER COMPOSITE PIPE WITH IMPROVED TEMPERATURE AND DELAMINATION RESISTANCE AND PROCESS FOR MAKING PIPE

#17
20230313935
2023-10-05

COMPOSITE FLUID TRANSFER CONDUIT

#18
20230265948
2023-08-24

TUBING FOR TRANSPORTING A FLUID, AND METHODS OF USING THE SAME

#19
20230250320
2023-08-10

ADHESIVE POLYETHYLENE COMPOSITION

#20
20230184353
2023-06-15

ABRASION RESISTANT COATED TUBE

#21
20230127097
2023-04-27

HVACR PIPE

#22
20230092249
2023-03-23

System and method for a process to create improved piping to supress the build up of biological organisms

#23
20220381375
2022-12-01

Pressure equalization in composite pipes

#24
20220380563
2022-12-01

GAS BARRIER STRUCTURE, AIR CONDITIONER PART, GAS METERING APPARATUS, AND AUTOMOTIVE PART

#25
20220373107
2022-11-24

Extruded aliphatic polyketone permeation barrier for spoolable composite pipes

#26
20220356964
2022-11-10

Bioinert pipe with hollow member accepting a metal tube and liquid chromatograph

#27
20220341514
2022-10-27

Pipe liner and associated methods

#28
20220332936
2022-10-20

Thermoplastic resin composition and molded article thereby

#29
20220268375
2022-08-25

MULTI-LAYER COATED STEEL PIPE COMPRISING AN ADNESIVE OR EPOXY LAYER

#30
20220243858
2022-08-04

COATED PIPE SECTION AND METHOD FOR COATING A PIPE

#31
20220243843
2022-08-04

Multilayer structure for transporting or storing gas or for exploiting offshore oil deposits under the sea

#32
20220221087
2022-07-14

HELICALLY WOUND PIPE AND RELATED METHOD

#33
20220143948
2022-05-12

Methods and materials for intelligent composite renewal system for standalone, storage, and renewed pipelines, including for reduced carbon emission and for conversion of in place pipelines for conveyance of hydrogen and other clean fuels

#34
20220003362
2022-01-06

HYDROGEN TANK AND HYDROGEN PIPE THAT ARE COVERED WITH A TWO-DIMENSIONAL MATERIAL, AND PLANT FOR DELIVERING HYDROGEN

#35
20210364106
2021-11-25

HVACR pipe

#36
20210172549
2021-06-10

Connector assembly

#37
20210156496
2021-05-27

Mechanically lined pipe having an inner polymer liner

#38
20210131589
2021-05-06

Multilayer composite pipe and pipe assemblies including reflective insulation

#39
20210088171
2021-03-25

SYSTEM AND METHOD FOR FORMING A PIPE ASSEMBLY

#40
20210079673
2021-03-18

WATER-CONTAINING FLUID TRANSPORT PIPE AND TRANSPORT METHOD FOR WATER-CONTAINING FLUID

#41
20210016514
2021-01-21

Electromagnetic induction welding of fluid distribution systems

#42
20210008828
2021-01-14

FLUOROPOLYMER PIPE

#43
20210008827
2021-01-14

FLUOROPOLYMER PIPE

#44
20200400251
2020-12-24

Multilayer composite pipe and pipe assemblies including reflective insulation

#45
20200377654
2020-12-03

Use of PEKK for producing parts with low gas permeability

#46
20200355313
2020-11-12

Insulating inserts for field joints of coated rigid pipelines

#47
20200309310
2020-10-01

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

#48
20200248844
2020-08-06

Method for producing a pipe lined with an inner liner

#49
20200096139
2020-03-26

Non-Bursting Pipe and Method of Manufacturing Same

#50
20200041063
2020-02-06

Tubing for brake and fuel systems incorporating graphene impregnated polyamides

#51
20190271432
2019-09-05

Field joint arrangement for a pipeline and protecting method thereof

#52
20190211948
2019-07-11

Watertight electrical conduit

#53
20190143628
2019-05-16

FLUOROPOLYMER PIPE

#54
20190134939
2019-05-09

FLUOROPOLYMER PIPE

#55
20180363831
2018-12-20

Electric wire protection member and wire harness

#56
20180363809
2018-12-20

Methods for manufacturing metal-resin composite pipe that can be easily wound into ring shape

#57
20180320452
2018-11-08

One piece forged fluidic displacement drill pipe and method of manufacture thereof

#58
20180313490
2018-11-01

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

#59
20180274712
2018-09-27

Insulating inserts for field joints of coated rigid pipelines

#60
20180119851
2018-05-03

Pipe, pipe connection and pipeline system

#61
20180065216
2018-03-08

Methods of forming energy-dissipative tubes

#62
20180058612
2018-03-01

Biocompatible tubing for liquid chromatography systems

#63
20180033521
2018-02-01

Anisotropic wire harness

#64
20180031151
2018-02-01

Methods for manufacturing metal-resin composite pipe that can be easily wound into ring shape

#65
20170350551
2017-12-07

Method for protecting field joint arrangement for a pipeline

#66
20170343136
2017-11-30

FLUID HANDLING ASSEMBLY HAVING A MULTILAYERED COMPOSITE PIPE HAVING A MECHANICAL COUPLING METHOD OF ASSEMBLING THE FLUID HANDLING ASSEMBLY

#67
20170341957
2017-11-30

Water treatment apparatus producing no harmful substances

#68
20170254444
2017-09-07

Biocompatible tubing for liquid chromatography systems

#69
20170198837
2017-07-13

Bent product

#70
20170166734
2017-06-15

MULTIMODAL POLYETHYLENE

#71
20170058124
2017-03-02

Dynamically vulcanized polyarylene sulfide composition

#72
20170030492
2017-02-02

Wear-heat-resistant anti-bacterial anti-fouling steel wire framed pipe and manufacturing method thereof

#73
20170023157
2017-01-26

HIGHLY ABRASION-RESISTANT POLYOLEFIN PIPE

#74
20170015050
2017-01-19

Electromagnetic induction welding of fluid distribution systems

#75
20160305033
2016-10-20

Coated stainless steel member

#76
20160123504
2016-05-05

COMPOSITE MATERIAL COMPOSITION FOR NEUTRALIZING ACID COMPOUNDS AND PIPE COMPRISING A SHEATH MADE FROM SAME

#77
20160116086
2016-04-28

Multi-layered fuel tubing

#78
20160116080
2016-04-28

Pipe manipulation apparatus and methods

#79
20160111739
2016-04-21

Hydrogen supply piping and method of manufacturing hydrogen supply piping

#80
20160105944
2016-04-14

Energy dissipative tubes

#81
20160091124
2016-03-31

Anisotropic pipe liner

#82
20160072265
2016-03-10

Resin-coated wire harness pipe

#83
20160069503
2016-03-10

Process for lining metal pipelines

#84
20160060459
2016-03-03

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

#85
20150337995
2015-11-26

Mechanically lined pipe

#86
20150308753
2015-10-29

METHOD FOR PRODUCING A MULTI-LAYER PIPE LINE, PIPE LINE, AND AIR-CONDITIONING SYSTEM HAVING SUCH A PIPE LINE

#87
20150308588
2015-10-29

Biocompatible Tubing for Liquid Chromatography Systems

#88
20150290885
2015-10-15

Method for producing a composite body

#89
20150252933
2015-09-10

Pipe coupling

#90
20150252917
2015-09-10

Composite underground pipe structure

#91
20150226365
2015-08-13

Iron-based piping element for buried pipeline, comprising an outer coating

#92
20150219251
2015-08-06

Multi-layered fuel tubing

#93
20150114508
2015-04-30

METAL-RESIN COMPOSITE PIPE THAT CAN BE EASILY WOUND INTO RING SHAPE AND, METHODS FOR MANUFACTURING THE SAME

#94
20150093505
2015-04-02

Method for preparing rotolined articles

#95
20150059911
2015-03-05

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

#96
20150041145
2015-02-12

FLUOROPOLYMER PIPE

#97
20150027581
2015-01-29

Pipe, pipe connection and pipeline system

#98
20140363597
2014-12-11

Duct with electrically conductive coating

#99
20140311615
2014-10-23

Barrier Structure and Laminate Thereof

#100
20140295118
2014-10-02

Metallized polyethylene laminates

#101
20140291032
2014-10-02

Process for the production of a pipe lined with an inliner

#102
20140203473
2014-07-24

Multi-layered fuel tubing

#103
20140196524
2014-07-17

Pipe containing a metal casing with a plastics material inlay for use in low and high pressure applications, in particular as an HPLC column

#104
20140134456
2014-05-15

METHODS OF MAKING PROTECTIVE COATING FOR METAL SURFACES

#105
20140124081
2014-05-08

SPIRALLY WAVED SYNTHETIC RESIN CONDUIT WITH COUPLING, AND CONNECTION STRUCTURE FOR SPIRALLY WAVED SYNTHETIC RESIN CONDUIT

#106
20140083550
2014-03-27

Process for lining metal pipelines

#107
20140053908
2014-02-27

THERMOPLASTIC POLYURETHANE MULTILAYER PROTECTIVE LINER

#108
20130327435
2013-12-12

COATED STAINLESS STEEL MEMBER

#109
20130319570
2013-12-05

Making pipe for liquid conveyance

#110
20130319568
2013-12-05

Fluid handling assembly having a multilayered composite pipe employing a mechanical coupling and method of assembling the fluid handling assembly

#111
20130312863
2013-11-28

Environmentally protected tubing and method of making it

#112
20130306187
2013-11-21

CONVEYING PIPE PART OF A PNEUMATIC MATERIAL CONVEYING SYSTEM AND A METHOD FOR FORMING A PIPE JOINT

#113
20130291991
2013-11-07

Pipe section having polyarylene sulfide composition barrier layer

#114
20130273290
2013-10-17

Dynamically vulcanized polyarylene sulfide composition

#115
20130269819
2013-10-17

Pipe section having bonded composite barrier layer

#116
20130263961
2013-10-10

COMPOSITE PIPE HAVING IMPROVED BONDING STRENGTH BETWEEN HETEROGENEOUS MATERIALS, AND APPARATUS AND METHOD OF MANUFACTURING THE SAME

#117
20130160887
2013-06-27

Coated pipes for conveying oil

#118
20130146172
2013-06-13

Hoop winding method for reinforcing the axial strength and the internal pressure strength of a tube

#119
20130126032
2013-05-23

MULTILAYER TUBES

#120
20130105027
2013-05-02

Articles comprising a hydrate-inhibiting silicone coating

#121
20130095266
2013-04-18

Pipes and polyolefin composition for the manufacture thereof

#122
20130087207
2013-04-11

Pipe transport system with hydrophobic wall

#123
20130084415
2013-04-04

Electrical conduit containing a fire-resisting thermoplastic composition

#124
20130081850
2013-04-04

Fire-Resisting Thermoplastic Composition for Plenum Raceways and Other Conduits

#125
20130065000
2013-03-14

Multilayer protective liner

#126
20130033033
2013-02-07

PIPELINE LINER NON-FLANGE CONNECTION

#127
20120295048
2012-11-22

Stabilised cross-linked polymers

#128
20120234427
2012-09-20

Multilayer tube with an aluminum alloy core tube

#129
20120177857
2012-07-12

Multi-layered fuel tubing

#130
20120175006
2012-07-12

PVC/CPVC Composite Pipe With metal Interlayer And Process For Making It

#131
20120155813
2012-06-21

Composite spoolable tube

#132
20120147513
2012-06-14

In-Line Static Electricity Removal Grounding Device

#133
20120080115
2012-04-05

Cabling system corrugated centertube umbilical

#134
20120025025
2012-02-02

Aircraft refuel system piping

#135
20120024411
2012-02-02

Biocompatible tubing for liquid chromatography systems

#136
20110217497
2011-09-08

Coated pipe comprising polyolefin layer with enhanced adhesion

#137
20110209768
2011-09-01

Use of a composition for contact with supercritical media

#138
20110197986
2011-08-18

COMPOSITE PIPE FOR HIGH-PRESSURE GAS AND A MANUFACTURING METHOD OF THE SAME

#139
20110177358
2011-07-21

Protective coating for metal surfaces

#140
20110165358
2011-07-07

Process for producing a molding composition or a molding with an increase in the melt stiffness

#141
20110135918
2011-06-09

Rotolined articles

#142
20110123745
2011-05-26

Pressureless polymer pipe, a compositon therefore, and a process for preparing it

#143
20110042938
2011-02-24

MULTIPLE MATERIAL PIPING COMPONENT

#144
20110042139
2011-02-24

Sealing devices and methods of installing energy dissipative tubing

#145
20110042090
2011-02-24

Composite micro-coil for downhole chemical delivery

#146
20110041944
2011-02-24

Energy dissipative tubes and methods of fabricating and installing the same

#147
20110017338
2011-01-27

Aluminum foil based hose

#148
20100325861
2010-12-30

Multi-layer tubular conduit

#149
20100304051
2010-12-02

Compositions and articles prepared therefrom

#150
20100247947
2010-09-30

Steel pipe for vehicle piping

#151
20100227190
2010-09-09

METHOD FOR THE UNIFORM APPLICATION OF A COATING TO A TUBULAR WALL

#152
20100221473
2010-09-02

MULTILAYER ASSEMBLY AND METHOD FOR PRODUCING THE SAME

#153
20100218893
2010-09-02

METHOD FOR THE PRODUCTION OF A METALLIC LINE PIPE WITH A FIRMLY ADHERING PLASTIC SHEATHING

#154
20100212769
2010-08-26

Composite spoolable tube

#155
20100193062
2010-08-05

COMPOSITE METAL TUBING

#156
20100119748
2010-05-13

Foamed polyvinylidene fluoride tubular structures

#157
20100116480
2010-05-13

Vehicular climate control system

#158
20100116373
2010-05-13

Composite pipe

#159
20100108173
2010-05-06

Highly abrasion-resistant polyolefin pipe

#160
20100093945
2010-04-15

DIFFUSION RETARDATION IN FLUOROPLASTICS

#161
20100089517
2010-04-15

Equipment and method for manufacturing steel-plastic composite pipe

#162
20100078259
2010-04-01

FLOWBODIES AND METHODS OF FORMING FLOWBODIES

#163
20100006172
2010-01-14

Internal diameter coatings for fire protection piping

#164
20090274857
2009-11-05

Multi-layered fuel tubing

#165
20090233029
2009-09-17

Process for coating exterior surfaces of pipelines with water cross-linkable polymer

#166
20090233028
2009-09-17

Conduit pipe for conveying media

#167
20090194187
2009-08-06

Application of Hydraulic Friction Reducing Internal Diameter Coatings for Fire Protection Piping

#168
20090174185
2009-07-09

Joint and Joinning Method for Multilayer Composite Tubing

#169
20090173408
2009-07-09

Steel Pipe Covered at its Inside Surface with Polyolefin Superior in Durability and Method of Production of Same and Plated Steel Pipe Used for that Covered Steel Pipe

#170
20090139661
2009-06-04

PVC/CPVC Composite Pipe With Metal Interlayer And Process For Making It

#171
20090114305
2009-05-07

CORROSION RESISTANT SHEET METAL JACKETING

#172
20090096131
2009-04-16

METHOD OF MAKING A COMPOSITE PRODUCT

#173
20090035501
2009-02-05

COMPOSITE PRODUCT

#174
20090021005
2009-01-22

CONNECTION STRUCTURE OF METAL-RESIN COMPOSITE PIPES AND METAL-RESIN COMPOSITE PIPE FOR USE IN THE CONNECTION STRUCTURE

#175
20080246277
2008-10-09

Multiple material piping component

#176
20080099220
2008-05-01

Pipe, method for production thereof and corresponding tool

#177
20080053554
2008-03-06

Dry fiber wrapped pipe

#178
20080017267
2008-01-24

Moulded Body with Evaporation-Sputtered Layers

#179
20080016671
2008-01-24

Composite pipe

#180
20080003389
2008-01-03

COMPOSITE TUBE WITH A DEFORMABLE LINING

#181
20070267082
2007-11-22

Protective liner for slurry pipelines

#182
20070204929
2007-09-06

Multilayer Pipe

#183
20070193643
2007-08-23

Plastics pipe

#184
20070181203
2007-08-09

Composite strip windable to form a helical pipe and method therefor

#185
20070145188
2007-06-28

Component, particularly a lightweight hybrid component

#186
20070036982
2007-02-15

Interpenetrating polymer network as coating for metal substrate and method therefor

#187
20070031624
2007-02-08

Lined water conduit

#188
20070026178
2007-02-01

Method for making plastic metal composite parts

#189
20070023129
2007-02-01

Method of coupling polymeric tubing to polymeric coated metal tubing

#190
20060263557
2006-11-23

Composite pipe

#191
20060249213
2006-11-09

Plastic coated metal heater and water tube assembly

#192
20060213569
2006-09-28

Hose and method of producing the same

#193
20060174959
2006-08-10

Composite strip windable to form a helical pipe and method therefor

#194
20060162800
2006-07-27

Resin-coated steel pipe excellent in mechanical strength such as sliding property

#195
20060144456
2006-07-06

UMBILICAL FOR OFFSHORE/REDUCTION OF HYDROCARBONS

#196
20060108016
2006-05-25

Resin-lined steel pipe and method for production thereof

#197
20060093769
2006-05-04

Multilayer tube assembly and methods for forming and using the same

#198
20060054231
2006-03-16

Tube for transporting high-viscosity materials

#199
20060042274
2006-03-02

Refrigeration system and a method for reducing the charge of refrigerant there in

#200
20050249558
2005-11-10

Composite marine riser

#201
20050236061
2005-10-27

Sandwich pipes for ultra-deep waters

#202
20050196570
2005-09-08

High performance composite tubular structures

#203
20050139280
2005-06-30

Composite pressure pipe

#204
20050133010
2005-06-23

Fuel piping

#205
20050121094
2005-06-09

Composite spoolable tube

#206
20050037214
2005-02-17

Nylon composite articles of manufacture and processes for their preparation

#207
20050025922
2005-02-03

Polyolefin coated steel pipes

#208
20050013670
2005-01-20

Offshore drilling system comprising a high-pressure riser

#209
20050003128
2005-01-06

Low permeation nylon tube with aluminum barrier layer

#210
15649531
2018-11-06

Multi-layer removable duct liners

#211
13396067
2015-08-25

Jacketed line coupling