F16L9/00 - CPC Classification Index

ClassID:

152799 ⎘

F16L9/00 - CPC Classification

Classification description:

Rigid pipes

Sub-classes:

F16L9/003 » {with a rectangular cross-section } 92
F16L9/006 » {specially profiled } 137
F16L9/01 » of wood 3
F16L9/02 » of metal 391
F16L9/08 » of concrete, cement, or asbestos cement, with or without reinforcement 10
F16L9/10 » of glass or ceramics, e.g. clay, clay tile, porcelain 19
F16L9/12 » of plastics with or without reinforcement 356
F16L9/14 » Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups 218
F16L9/16 » wound from sheets or strips, with or without reinforcement 74
F16L9/17 » obtained by bending a sheet longitudinally and connecting the edges 112
F16L9/18 » Double-walled pipes; Multi-channel pipes or pipe assemblies 253
F16L9/21 » made of sound-absorbing materials or with sound-absorbing structure 36
F16L9/22 » Pipes composed of a plurality of segments 161

Recent Application in this class:

20250237329

2025-07-24

Rigid Tube for Inserts

20250164047

2025-05-22

PIPING SYSTEM COMPRISING PIPE BLOCK

20240229977

2024-07-11

TRAILER HOSE CARRIER TUBE LINER

20240200713

2024-06-20

Fuel Line Comprising Insulation, and Pressure Vessel System

20230417353

2023-12-28

RESIN-MADE PIPE

20210108479

2021-04-15

SYSTEM FOR HYDROCARBON RECOVERY

20200248513

2020-08-06

Power swivel and gooseneck

20200200296

2020-06-25

Tailor-layered tube with thickness deviations and method of manufacturing the same

20200173129

2020-06-04

Low-profile fluid conduit/collector and system

#10

20200166685

2020-05-28

Optical waveguide for use with a cable or line

#11

20200023566

2020-01-23

COMPOSITE COMPONENT AND MANUFACTURE THEREOF

#12

20190368637

2019-12-05

Telescopic tube assembly

#13

20190263050

2019-08-29

Method for producing a tubular body with reduced internal stress by using 3D printing, and a tubular body with reduced internal stress

#14

20190203748

2019-07-04

System for Creating Water Vortices inside Eight-Shaped Pipe

#15

20190143384

2019-05-16

Low-profile fluid conduit/collector and system

#16

20190063641

2019-02-28

Steel material and oil-well steel pipe

#17

20190056045

2019-02-21

SPIRAL BANDING

#18

20190032818

2019-01-31

Thin wall pipe and manufacturing process

#19

20190017632

2019-01-17

Marked conduit or tube

#20

20180105893

2018-04-19

High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipe

#21

20180045632

2018-02-15

Wafer scoop assembly and method

#22

20180044748

2018-02-15

Steel material for composite pressure vessel liner and steel pipe or tube for composite pressure vessel liner

#23

20160271921

2016-09-22

Multilayer composite comprising a polyester layer

#24

20160271920

2016-09-22

MULTILAYER COMPOSITE COMPRISING LAYERS OF PARTLY AROMATIC POLYAMIDES

#25

20160271919

2016-09-22

Multilayer composite comprising layers of partly aromatic polyamides

#26

20160271918

2016-09-22

Multilayer composite comprising a fluoropolymer layer

#27

20160166958

2016-06-16

Multi-segmented tube sheet

#28

20160101992

2016-04-14

Multi-segmented tube sheet

#29

20160033057

2016-02-04

Heat releasing pipe

#30

20150375435

2015-12-31

Techniques for coating pipes

#31

20150285409

2015-10-08

METHOD FOR ASSEMBLING A RIGID PIPE INTENDED TO BE PLACED IN A STRETCH OF WATER, AND ASSOCIATED INSTALLATION AND PIPE

#32

20150204280

2015-07-23

Gas flow unit, a gas treatment device and a combustion engine provided therewith

#33

20150183169

2015-07-02

Repair and strengthening of structures with heat-cured wrap

#34

20150158196

2015-06-11

Non-Linear Slotting Profiles for Pipe and Pipe Liners

#35

20150075667

2015-03-19

CARBON MACROTUBES AND METHODS FOR MAKING THE SAME

#36

20140335772

2014-11-13

Cooling tube for a ram air fan (RAF) assembly

#37

20140306446

2014-10-16

Fitting for an exhaust pipe

#38

20140290786

2014-10-02

MICROFLUIDIC CHANNEL AND MICROFLUIDIC DEVICE

#39

20140252759

2014-09-11

Retractable sample scoop and method for pipeline sampling

#40

20140251483

2014-09-11

TUBE ASSEMBLY FOR USE IN FUEL INJECTION ASSEMBLIES AND METHODS OF ASSEMBLING SAME

#41

20140251007

2014-09-11

Tandem scoop and method for pipeline sampling

#42

20140239630

2014-08-28

Scoop assembly and method

#43

20140230950

2014-08-21

FIBROUS CORES

#44

20140230944

2014-08-21

Low cost umbilicus without overmolding

#45

20140204523

2014-07-24

Heat dissipation system with air duct

#46

20140182731

2014-07-03

Drainpipe, method for preventing blockage of drainpipe and installation structure of drainpipe

#47

20140166148

2014-06-19

Multilayer Film

#48

20140166147

2014-06-19

Multilayer Film

#49

20140166144

2014-06-19

Composite ducts and methods

#50

20140158248

2014-06-12

Tube of radiator

#51

20140154013

2014-06-05

Green recycled material component wet well

#52

20140150919

2014-06-05

Duct arrangement

#53

20140144537

2014-05-29

Transmission line for drill pipes and downhole tools

#54

20140124083

2014-05-08

Rigid Disposable Flow Path

#55

20140116548

2014-05-01

Filling connector with integrated ventilation duct

#56

20140116528

2014-05-01

Method for installation of a pipe based system, and a pipe based system particularly suitable for the method

#57

20140110009

2014-04-24

Vehicle exhaust tip assembly

#58

20140090738

2014-04-03

Rigid disposable flow path

#59

20140060690

2014-03-06

EXHAUST SYSTEM FOR BETWEEN A TURBOCHARGER AND CATALYTIC CONVERTER

#60

20140020783

2014-01-23

Method and apparatus for reducing fluid flow friction in a pipe

#61

20140014196

2014-01-16

Self-aligning product delivery system

#62

20130333788

2013-12-19

Subsea pipe section with reinforcement layer

#63

20130323450

2013-12-05

Controlling melt fracture in bimodal resin pipe

#64

20130299036

2013-11-14

Conduit for improved fluid flow and heat transfer

#65

20130276926

2013-10-24

Aerated swirling vertical shaft with double volute chambers

#66

20130248044

2013-09-26

Vent duct

#67

20130205923

2013-08-15

MODULE UNIT AND FLUID ANALYSIS UNIT

#68

20130170913

2013-07-04

Techniques for coating pipes

#69

20130146167

2013-06-13

Molded composite mandrel for a downhole zonal isolation tool

#70

20130133771

2013-05-30

Multi-part insert

#71

20130123371

2013-05-16

Anisotropic hydrogels

#72

20130118631

2013-05-16

DEVICE FOR MANUFACTURING PROFILE CORRUGATED TUBE, METHOD FOR MANUFACTURING PROFILE CORRUGATED TUBE AND PROFILE CORRUGATED TUBE

#73

20130108251

2013-05-02

PIPELINE

#74

20130098798

2013-04-25

PIPE TRANSPORT SYSTEM

#75

20130092280

2013-04-18

Electric resistance welded oil country tubular goods and manufacturing method of electric resistance welded oil country tubular goods

#76

20130087499

2013-04-11

SPIRAL SEPARATION MEMBRANE ELEMENT, PERFORATED HOLLOW TUBE, AND METHOD OF PRODUCING THE SAME

#77

20130087207

2013-04-11

Pipe transport system with hydrophobic wall

#78

20130074973

2013-03-28

Exhaust pipe and method for manufacturing exhaust pipe

#79

20130068339

2013-03-21

Exhaust pipe

#80

20130068332

2013-03-21

Aerated Swirling Vertical Shaft with Double Volute Chambers

#81

20130065059

2013-03-14

METHOD OF ADHERING IONOMER TO METAL

#82

20120000566

2012-01-05

RIGID DISPOSABLE FLOW PATH

#83

20110303507

2011-12-15

PETROCHEMICAL CRACKER

#84

20110284153

2011-11-24

Method of making a molded composite mandrel

#85

20110253245

2011-10-20

METHOD AND APPARATUS FOR PRODUCING PIPE SECTIONS USING A LASER BEAM MOVABLE BY A SCANNING DEVICE, AND CORRESPONDING PIPE SECTION

#86

20110186171

2011-08-04

Delivery pipe

#87

20100313982

2010-12-16

Fluid flow control device

#88

20100101676

2010-04-29

Composite tubing

#89

20090276029

2009-11-05

Helical stent

#90

20090218037

2009-09-03

Piping

#91

20090214623

2009-08-27

Anisotropic hydrogels

#92

20090044954

2009-02-19

Method for Transporting Multiphase Fluids

#93

20090011247

2009-01-08

Molded Composite Mandrel for a Downhole Zonal Isolation Tool

#94

20080264645

2008-10-30

Apparatus for mitigating slugging in flowline systems

#95

20080210327

2008-09-04

Corrugated pipe with outer layer

#96

20080014812

2008-01-17

Buoyancy Control Systems for Tubes

#97

20070157985

2007-07-12

Tubing and piping for multiphase flow

#98

20070125439

2007-06-07

Composite tubing

#99

20070028984

2007-02-08

Helical piping

#100

20060265051

2006-11-23

Helical stent

#101

20060201567

2006-09-14

Corrugated pipe with outer layer

#102

20060151044

2006-07-13

Pipe, method and device for improved pipelines and similar objects

#103

20060102239

2006-05-18

Fluid flow control device

#104

20060084331

2006-04-20

Buoyancy control systems for tubes

#105

20050277347

2005-12-15

Buoyancy control systems for tubes