ClassID:

152815

F16L9/123 - CPC Classification

Classification description:

Rigid pipes of plastics with or without reinforcement with four layers

Recent Application in this class:
#1
20260036227
2026-02-05

MULTI-LAYERED PIPE

#2
20250297696
2025-09-25

METHOD OF PRODUCING TUBE BODY

#3
20250283557
2025-09-11

METHOD FOR PRODUCING TUBE BODY

#4
20250257821
2025-08-14

Multilayer Tube

#5
20240418299
2024-12-19

MULTI-LAYERED PIPE

#6
20230127097
2023-04-27

HVACR PIPE

#7
20220381373
2022-12-01

TUBE BODY INTERMEDIATE AND METHOD FOR PRODUCING TUBE BODY

#8
20220381372
2022-12-01

TUBE BODY INTERMEDIATE AND METHOD FOR PRODUCING TUBE BODY

#9
20220065386
2022-03-03

Passive thermal diode for transportation pipelines using contact switch based on shape memory polymer (SMP-PTD)

#10
20220041849
2022-02-10

Composites having a thermoplastic matrix

#11
20210364106
2021-11-25

HVACR pipe

#12
20210199224
2021-07-01

Fibre reinforced polymer tube

#13
20200400251
2020-12-24

Multilayer composite pipe and pipe assemblies including reflective insulation

#14
20200041063
2020-02-06

Tubing for brake and fuel systems incorporating graphene impregnated polyamides

#15
20190168479
2019-06-06

Multi-layered pipe and a method for forming a multi-layered pipe

#16
20180312679
2018-11-01

Insulated conduit including a fluoropolymer composition for use as a thermal insulation layer

#17
20180202583
2018-07-19

Multilayered pipe and method of manufacturing the same

#18
20170368805
2017-12-28

Multilayered tube for transporting liquid medicine and polyamide resin composition

#19
20170045161
2017-02-16

MULTILAYER COMPOSITE WASTE TUBE

#20
20160273499
2016-09-22

Multilayered motor vehicle pipeline

#21
20160238165
2016-08-18

High pressure pipe and use thereof

#22
20160052188
2016-02-25

Process for manufacturing a hollow body and the manufactured body

#23
20160003405
2016-01-07

SHEAR INCREASING SYSTEM

#24
20150298402
2015-10-22

Carbon fiber composite material boom, production method thereof and truck-mounted concrete pump comprising the carbon fiber composite material boom

#25
20150083264
2015-03-26

HYDROGEN TRANSFER TUBE

#26
20150053293
2015-02-26

Multilayer pipeline in a polymer material, device for manufacture of the multilayer pipeline and a method for manufacturing the multilayer pipeline

#27
20140363597
2014-12-11

Duct with electrically conductive coating

#28
20140116566
2014-05-01

PIPE LINER AND METHOD OF RELINING A SEWER PIPE

#29
20140076452
2014-03-20

Method for producing a tube or semi-finished tube and tube or semi-finished tube for chemical apparatus construction

#30
20130319571
2013-12-05

COMPOSITE PIPE

#31
20130263962
2013-10-10

Multilayer reinforced polymeric pipe and system of pipes for water transportation

#32
20130248043
2013-09-26

STRUCTURAL TUBE COMPRISING A FIBRE REINFORCED POLYMER

#33
20120298247
2012-11-29

Multilayered resin tube-shaped body

#34
20120238428
2012-09-20

METHOD FOR PROVIDING A WOUND UP FIBER REINFORCED TUBE

#35
20110146830
2011-06-23

Shear increasing system

#36
20090130357
2009-05-21

Hollow body with double barrier layer

#37
20090071595
2009-03-19

Assembly process and plastic composite tube

#38
20090022920
2009-01-22

Composite Article For Conveying And/Or Storage Of Liquid and Gaseous Media And A Process For Producing The Same

#39
20080311327
2008-12-18

Plastics Material Tube

#40
20080268192
2008-10-30

TUBULAR BODY

#41
20080107846
2008-05-08

Composite Hollow Body And Method And Device For Making Same

#42
20060169343
2006-08-03

Plastics pipe

#43
20060124191
2006-06-15

Plastics pipe

#44
20060013980
2006-01-19

Plastics pipe

#45
20050257847
2005-11-24

Multi-layer duct for air distribution in air conditioning systems for vehicles, in particular aircrafts, and an element for fixing the duct to the structure of an aircraft

#46
20050183785
2005-08-25

Fiber reinforced pipe

#47
20050173011
2005-08-11

Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids

#48
20050158497
2005-07-21

Assembly methodand a plastic composite tube

#49
20050087249
2005-04-28

Pure-water pipe for fuel cell

#50
20050031818
2005-02-10

Polyamide-based multilayer tube for transferring fluids

#51
20050016609
2005-01-27

Multilayer pipe, in particular for an engine cooling circuit

#52
14993187
2019-01-22

Composite pipe