ClassID:

152801

F16L9/006 - CPC Classification

Classification description:

Rigid pipes specially profiled

Recent Application in this class:
#1
20260110375
2026-04-23

EGG-SHAPED PIPE THAT IS EASY TO CONNECT AND DISCONNECT

#2
20250243951
2025-07-31

FILTER TO TANK FLOW TUBE ARRANGEMENT

#3
20250060053
2025-02-20

NESTABLE DUCTS WITH RINGS

#4
20240318509
2024-09-26

TUBULAR MEMBER WITH ASYMMETRIC BURST AND COLLAPSE RATINGS, METHOD, AND SYSTEM

#5
20240271725
2024-08-15

HOLLOW COMPONENT, HOLLOW COMPONENT MANUFACTURING METHOD, AND HOLLOW COMPOMENT MANUFACTURING DEVICE

#6
20240229978
2024-07-11

DUCT STRUCTURE

#7
20240216884
2024-07-04

AXIAL REFORMER TUBE

#8
20240167589
2024-05-23

PIPES

#9
20230349585
2023-11-02

ELLIPTICAL DUCTING SYSTEMS AND REINFORCED CONNECTORS

#10
20230168158
2023-06-01

Molten metal samplers for high and low oxygen applications

#11
20230160501
2023-05-25

CRYOGENIC TURBOPUMP FEED LINE

#12
20230070379
2023-03-09

Volumetric flow design for conduits

#13
20220341513
2022-10-27

Bioinert piping

#14
20220316627
2022-10-06

Easily polymerizable substance handling device

#15
20220178474
2022-06-09

Pipes for carrying water

#16
20220008942
2022-01-13

Guiding pipe for water sprayer

#17
20210404589
2021-12-30

Structural connection between in-line pipes and tubes

#18
20210381626
2021-12-09

Tube arrangement for the transport of tempering medium

#19
20210378470
2021-12-09

Vacuum cleaner having tube and hose

#20
20210010618
2021-01-14

Transfer line exchanger

#21
20210002749
2021-01-07

Pipe element for gas pressure vessel, and gas pressure vessel

#22
20200406330
2020-12-31

Forming device, forming method, and metal pipe

#23
20200325885
2020-10-15

Piping member and fluid transport device

#24
20200232583
2020-07-23

Low erosion fluid conduit with sharp section geometry

#25
20200141660
2020-05-07

U-bends with the reduced pressure losses to fluid distributing networks

#26
20200094773
2020-03-26

Tubular element for gas pressure vessel, gas pressure vessel and method of manufacturing a tubular element

#27
20190376876
2019-12-12

Molten metal samplers for high and low oxygen applications

#28
20190277434
2019-09-12

Structural connection between in-line pipes and tubes

#29
20190257591
2019-08-22

U-bends with the reduced pressure losses to fluid distributing networks

#30
20190246577
2019-08-15

Irrigation pipe having protruding strengthening members

#31
20190234539
2019-08-01

Tapered stress-relieved helically reinforced hose

#32
20190186669
2019-06-20

Curved flow channel with built-in lattice structure

#33
20190178422
2019-06-13

Fluid supply conduit and method for providing such a conduit

#34
20190143283
2019-05-16

Fluid supply pipe

#35
20190078716
2019-03-14

Material Flow

#36
20190061312
2019-02-28

Fluid conduit and method

#37
20190032834
2019-01-31

Reinforcing connecting assembly for water pipes

#38
20190032420
2019-01-31

WELL CASING AND WELL CASING SYSTEM AND METHOD

#39
20190017632
2019-01-17

Marked conduit or tube

#40
20190011064
2019-01-10

Spiral-welded polymer products with a cellular wall and thermoplastic profile for its production

#41
20190011063
2019-01-10

FLUID CONDUIT COMPONENT AND METHOD FOR PRODUCING IT

#42
20180363810
2018-12-20

Modular precast pipe

#43
20180320801
2018-11-08

Turbine engine duct

#44
20180313470
2018-11-01

Duct fabricated with additive manufacturing and having one or more curves

#45
20180305795
2018-10-25

Tube for Use in Conjunction with a Deep Drilled Hole

#46
20180238474
2018-08-23

Square tube forming process

#47
20180195008
2018-07-12

Minimizing coke formation in a hydrocarbon cracker system

#48
20180193810
2018-07-12

Fluid supply pipe

#49
20180187496
2018-07-05

Drill pipe

#50
20180169732
2018-06-21

Method and apparatus for the production of a tubular structure for a gas generator, and gas generator tubular structure

#51
20180142827
2018-05-24

Material Flow

#52
20180128415
2018-05-10

Vehicular exhaust pipe structure

#53
20180119848
2018-05-03

Wiring incorporated resin pipe and method of manufacturing the same

#54
20180106557
2018-04-19

Stainless steel and pipe made thereof

#55
20180104731
2018-04-19

Steel pipe, steel pipe structure, method of manufacturing steel pipe, and method of designing steel pipe

#56
20180094757
2018-04-05

Joint assembly

#57
20180058771
2018-03-01

Method of generating support structure of tube components to become functional features

#58
20180017190
2018-01-18

Metal pipe having thickened end portion, and method of manufacturing same

#59
20170370515
2017-12-28

Pipe, die, and method for manufacturing pipe

#60
20170324227
2017-11-09

Electric wire protecting pipe and wire harness

#61
20170167638
2017-06-15

Hydroform tube and method of forming

#62
20170101770
2017-04-13

Wastewater pipe structure

#63
20170082223
2017-03-23

Tapered helically reinforced hose and its manufacture

#64
20170002671
2017-01-05

Axial transfer tube

#65
20160347012
2016-12-01

Tapered helically reinforced hose and its manufacture

#66
20160325494
2016-11-10

Method of making a monolithic part

#67
20160286739
2016-10-06

Subsurface pressurized irrigation delivery system

#68
20160281885
2016-09-29

Tubing with internal channel

#69
20160252113
2016-09-01

Pipeline systems and methods

#70
20160215918
2016-07-28

Method of improving the life expectancy of piping

#71
20160203247
2016-07-14

Transfer line exchanger

#72
20160178111
2016-06-23

Insulation system

#73
20160169431
2016-06-16

Tubular pipe fitting insert with interior reinforcement ribs

#74
20160158832
2016-06-09

Pipe with rib and method for manufacturing pipe with rib

#75
20160072265
2016-03-10

Resin-coated wire harness pipe

#76
20160050948
2016-02-25

Corrugated metal vent pipe and associated system and method

#77
20150344689
2015-12-03

THERMOPLASTIC POLYAMIDE COMPONENTS, AND COMPOSITIONS AND METHODS FOR THEIR PRODUCTION AND INSTALLATION

#78
20150291283
2015-10-15

Monolithic part and method of forming the monolithic part

#79
20150283594
2015-10-08

Systems and methods for extruding tubes

#80
20150235719
2015-08-20

Leidenpump

#81
20150122366
2015-05-07

Wastewater pipe structure

#82
20150075664
2015-03-19

Corrugated metal plate assembly system and method

#83
20150059906
2015-03-05

Vehicle plastic intercooler pipe with low vibration characteristics

#84
20150053387
2015-02-26

LINE WITH ARCHED STRUCTURE

#85
20150034203
2015-02-05

Bearing cooling control in an air cycle machine

#86
20150013344
2015-01-15

TUBE

#87
20140374134
2014-12-25

Electric-wire protecting pipe and wire harness

#88
20140373960
2014-12-25

Bi-channel coolant tube having crossover channels to allow coolant interaction

#89
20140352831
2014-12-04

Shaped water supplying extension arm

#90
20140290785
2014-10-02

Ventilation duct

#91
20140290766
2014-10-02

Apparatus and methods for transferring materials between locations possessing different cross-sectional areas with minimal band spreading and dispersion due to unequal path-lengths

#92
20140271973
2014-09-18

Method for manufacturing climate control duct, and climate control duct

#93
20140182731
2014-07-03

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

#94
20140178610
2014-06-26

Transfer line exchanger

#95
20140130933
2014-05-15

Duct

#96
20140123949
2014-05-08

DELIVERY PIPE, PIPE, AND METHOD OF PRODUCING DELIVERY PIPE

#97
20140116567
2014-05-01

PIPE WITH RIB AND METHOD FOR MANUFACTURING PIPE WITH RIB

#98
20140069544
2014-03-13

Low profile downspout extension with non-rectangular outlet

#99
20140027005
2014-01-30

Enhanced flow boiling in microchannels by high frequency microbubble-excited and -modulated oscillations

#100
20130340970
2013-12-26

Collection of oil floating on a water surface by contact with a cold surface

#101
20130306184
2013-11-21

Foldable HVAC conduit and duct collar

#102
20130299036
2013-11-14

Conduit for improved fluid flow and heat transfer

#103
20130183211
2013-07-18

Apparatus and methods for transferring materials between locations possessing different cross-sectional areas with minimal band spreading and dispersion due to unequal path-lengths

#104
20130112368
2013-05-09

GEOTHERMAL WELL LOOP

#105
20130092277
2013-04-18

Tapered helically reinforced hose and its manufacture

#106
20120291687
2012-11-22

Helical strake systems

#107
20120227853
2012-09-13

FLOW- OPTIMIZED FLUID LINE

#108
20120156065
2012-06-21

Bearing cooling control in an air cycle machine

#109
20120132310
2012-05-31

COMPOSITE TUBULAR PARTS WITH COMPLEX SHAPES

#110
20120125465
2012-05-24

Low profile conduit extension for downspouts

#111
20120025025
2012-02-02

Aircraft refuel system piping

#112
20110232795
2011-09-29

Geothermal pipe system

#113
20110203725
2011-08-25

Composite duct assembly

#114
20110203696
2011-08-25

Pope and pipe fittings

#115
20110073211
2011-03-31

Method for manufacturing climate control duct, and climate control duct

#116
20110041942
2011-02-24

Method for the production of concrete pipes and concrete pipe system

#117
20100180972
2010-07-22

Dimples lifting pipe for mining deep-sea mineral resources

#118
20100061809
2010-03-11

SYSTEMS AND METHODS FOR REDUCING DRAG AND/OR VORTEX INDUCED VIBRATION

#119
20090235850
2009-09-24

PIPING

#120
20090220307
2009-09-03

STRAKE SYSTEMS AND METHODS

#121
20090158799
2009-06-25

Metal Pipe and Manufacturing Method Thereof

#122
20080308048
2008-12-18

Composite duct assembly

#123
20080257436
2008-10-23

Olefin production furnace having a furnace coil

#124
20080136174
2008-06-12

Tubing connecting device

#125
20080072983
2008-03-27

Flat pipe suitable for variable flow capacity

#126
20070221279
2007-09-27

Self supporting reinforced header

#127
20070125546
2007-06-07

STRAKE SYSTEMS AND METHODS

#128
20070106373
2007-05-10

Internal formation for a conduit

#129
20070014188
2007-01-18

Hydrodynamic static mixing apparatus for use thereof in transporting, conditioning and separating oil sands and the like

#130
20060196658
2006-09-07

Tubular slug reducer

#131
20060151996
2006-07-13

Tubing connecting device

#132
20060119101
2006-06-08

Pipe having enlarged and reduced diameters, and ejector using thereof

#133
20060048831
2006-03-09

Duct with spiral groove

#134
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

#135
20050241605
2005-11-03

Fluid flow surface with indentations

#136
20050089707
2005-04-28

Shaped contoured crushable structural members and methods for making the same

#137
20050082051
2005-04-21

Heat conduction pipe externally covered with fin member

#138
20050019597
2005-01-27

Coated contoured crushable structural members and methods for making the same

#139
20050000007
2005-01-06

Waste removal system

#140
17751552
2022-12-27

Drain-pipe interface device

#141
15459630
2018-08-07

Curvilinear duct fabricated with additive manufacturing