ClassID:

152825

F16L9/17 - CPC Classification

Classification description:

Rigid pipes obtained by bending a sheet longitudinally and connecting the edges

Recent Application in this class:
#1
20260027641
2026-01-29

ELECTRIC RESISTANCE WELDED STEEL PIPE OR TUBE AND PRODUCTION METHOD THEREFOR

#2
20250027583
2025-01-23

THIN-WALLED PIPE, METALLIC FLAT MATERIAL AND METHOD FOR PRODUCING A THIN-WALLED PIPE

#3
20240392898
2024-11-28

CURVED DUCT AND METHOD OF MANUFACTURING SAME

#4
20240218945
2024-07-04

PIPELINE ASSEMBLY AND MANUFACTURING METHOD THEREFOR

#5
20240060580
2024-02-22

BIODEGRADABLE IRRIGATION PIPE

#6
20240026999
2024-01-25

ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME

#7
20230141285
2023-05-11

Electric resistance welded steel pipe, method for manufacturing the same, and automotive structural member

#8
20230026660
2023-01-26

Cable management apparatus

#9
20230003333
2023-01-05

Fire resistant ventilation duct and a method of manufacturing and installing such ventilation duct

#10
20220396856
2022-12-15

Hot-rolled steel sheet for electric resistance welded steel pipe and method for manufacturing the same, electric resistance welded steel pipe and method for manufacturing the same, line pipe, and building structure

#11
20220390044
2022-12-08

ELECTRIC RESISTANCE WELDED STEEL PIPE AND METHOD FOR MANUFACTURING THE SAME

#12
20220373108
2022-11-24

ELECTRIC RESISTANCE WELDED STEEL PIPE, METHOD FOR PRODUCING THE SAME, LINE PIPE, AND BUILDING STRUCTURE

#13
20210222804
2021-07-22

STEEL SHEET, TAILORED BLANK, HOT STAMPED PRODUCT, STEEL PIPE, HOLLOW HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL SHEET, METHOD OF MANUFACTURING TAILORED BLANK, METHOD OF MANUFACTURING HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL PIPE, AND METHOD OF MANUFACTURING HOLLOW HOT STAMPED PRODUCT

#14
20200340384
2020-10-29

Housing, especially for an exhaust system of an internal combustion engine of a vehicle

#15
20200326095
2020-10-15

Method of forming a duct with paint sealant

#16
20200271247
2020-08-27

STEEL SHEET, TAILORED BLANK, HOT STAMPED PRODUCT, STEEL PIPE, HOLLOW HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL SHEET, METHOD OF MANUFACTURING TAILORED BLANK, METHOD OF MANUFACTURING HOT STAMPED PRODUCT, METHOD OF MANUFACTURING STEEL PIPE, AND METHOD OF MANUFACTURING HOLLOW HOT STAMPED PRODUCT

#17
20200224813
2020-07-16

Electric-resistance-welded stainless clad steel pipe or tube

#18
20200190615
2020-06-18

Steel member and production method therefor

#19
20200096139
2020-03-26

Non-Bursting Pipe and Method of Manufacturing Same

#20
20190346071
2019-11-14

A SYSTEM AND METHOD FOR MANUFACTURING A SYSTEM

#21
20190255646
2019-08-22

Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same

#22
20190219218
2019-07-18

Method of producing electric-resistance-welded stainless clad steel pipe or tube

#23
20190203312
2019-07-04

Method for producing a shaped component from a medium-manganese flat steel product and such a component

#24
20190186655
2019-06-20

Electric resistance welded clad steel pipe or tube and method of producing same

#25
20190184437
2019-06-20

Clad welded pipe or tube and method of producing same

#26
20190145562
2019-05-16

Pipe/fitting with modified crimp allowing for both pipe and flexible duct installation

#27
20190032819
2019-01-31

Pipe body, pipe and method of making pipe

#28
20180371849
2018-12-27

Apparatus and method for joining in a tube

#29
20180298461
2018-10-18

Steel plate for structural pipes or tubes, method of producing steel plate for structural pipes or tubes, and structural pipes and tubes

#30
20180298460
2018-10-18

STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, METHOD OF PRODUCING STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, AND STRUCTURAL PIPES AND TUBES

#31
20180238474
2018-08-23

Square tube forming process

#32
20180187800
2018-07-05

Tubular structures and knurling systems and methods of manufacture and use thereof

#33
20180106557
2018-04-19

Stainless steel and pipe made thereof

#34
20180105893
2018-04-19

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

#35
20180073095
2018-03-15

HIGH-STRENGTH STEEL, METHOD FOR MANUFACTURING HIGH-STRENGTH STEEL, STEEL PIPE AND METHOD FOR MANUFACTURING STEEL PIPE (AS AMENDED)

#36
20180057906
2018-03-01

STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, METHOD OF PRODUCING STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, AND STRUCTURAL PIPES AND TUBES

#37
20180057905
2018-03-01

STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, METHOD OF PRODUCING STEEL PLATE FOR STRUCTURAL PIPES OR TUBES, AND STRUCTURAL PIPES AND TUBES

#38
20180051830
2018-02-22

Tubular structures and knurling systems and methods of manufacture and use thereof

#39
20180051355
2018-02-22

High-strength steel, method for manufacturing high-strength steel, steel pipe, and method for manufacturing steel pipe

#40
20180036830
2018-02-08

Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same

#41
20180023163
2018-01-25

High-strength welded steel pipe for airbag inflator and method for manufacturing the same

#42
20170362678
2017-12-21

High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells

#43
20170356071
2017-12-14

Electric resistance welded steel pipe and manufacturing method therefor

#44
20170336013
2017-11-23

CHEMICAL CONVERSION-TREATED STEEL PIPE

#45
20170328502
2017-11-16

Sealed transverse locking pipe and fittings

#46
20170307111
2017-10-26

STEEL STRIP FOR ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE, ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE, AND PROCESS FOR PRODUCING STEEL STRIP FOR ELECTRIC-RESISTANCE-WELDED STEEL PIPE OR TUBE

#47
20170276160
2017-09-28

STRUCTURAL ASSEMBLY AND METHOD

#48
20170254443
2017-09-07

METHOD FOR THE PRODUCTION OF A TUBULAR MEMBER, AND TUBULAR MEMBER

#49
20170219133
2017-08-03

Duct with paint sealant

#50
20170211840
2017-07-27

Duct blank seam and apparatus for making a duct blank seam

#51
20170082314
2017-03-23

Light weight thermoplastic flex foam and hybrid duct system

#52
20170072445
2017-03-16

Method and device for manufacturing a tubular lagging element from sheet metal

#53
20170038090
2017-02-09

Duct connection device

#54
20170029918
2017-02-02

Method for manufacturing a strip having a variable thickness and associated strip

#55
20170022590
2017-01-26

Steel material for highly deformable line pipes having superior strain aging resistance and superior HIC resistance, method for manufacturing same, and welded steel pipe

#56
20170016557
2017-01-19

Magnetic closures for pipe insulation

#57
20160222480
2016-08-04

Electric-resistance welded steel pipe

#58
20160131282
2016-05-12

Multi-walled pipe and manufacture thereof

#59
20160084415
2016-03-24

Pipe/fitting with modified crimp allowing for both pipe and flexible duct installation

#60
20160053354
2016-02-25

Steel plate for thick-walled steel pipe, method for manufacturing the same, and thick-walled high-strength steel pipe

#61
20160033059
2016-02-04

FLOWFORMING CORROSION RESISTANT ALLOY TUBES

#62
20160003379
2016-01-07

Corrugated steel pipe and method for manufacturing the same

#63
20150367455
2015-12-24

Welding wire for Fe—36Ni alloy

#64
20150361518
2015-12-17

500 MPA grade longitudinally-welded steel pipe with low yield ratio and manufacturing method therefor

#65
20150292650
2015-10-15

α + β type titanium alloy sheet for welded pipe, manufacturing method thereof, and α + β type titanium alloy welded pipe product

#66
20150283641
2015-10-08

COMBINATION WELDING METHOD OF SIMULTANEOUSLY PERFORMING TUNGSTEN ARC WELDING AND SUBMERGED ARC WELDING

#67
20150118513
2015-04-30

Duct blank seam and apparatus for making a duct blank seam

#68
20150083266
2015-03-26

High-strength thick-walled electric resistance welded steel pipe having excellent low-temperature toughness and method of manufacturing the same

#69
20150007904
2015-01-08

ABRASION RESISTANT WELDED STEEL PIPE AND METHOD OF PRODUCING THE SAME

#70
20150000783
2015-01-01

Clad material, method of manufacturing brazed pipe, and brazed pipe

#71
20140295118
2014-10-02

Metallized polyethylene laminates

#72
20140261840
2014-09-18

Manufacture method of tubular member and tubular member manufactured by the same

#73
20140227468
2014-08-14

DUCT AND A METHOD FOR ITS MANUFACTURE

#74
20140070527
2014-03-13

Sealed transverse locking pipe and fittings

#75
20130312866
2013-11-28

Duct blank seam and apparatus for making a duct blank seam

#76
20130306184
2013-11-21

Foldable HVAC conduit and duct collar

#77
20130276959
2013-10-24

Method of forming a light weight thermoplastic flex foam and hybrid duct system

#78
20130239391
2013-09-19

Connecting method

#79
20130206274
2013-08-15

PROCESS FOR PRODUCING LARGE DIAMETER, HIGH STRENGTH, CORROSION-RESISTANT WELDED PIPE AND PIPE MADE THEREBY

#80
20130092279
2013-04-18

COILED TUBING WITH IMPROVED FATIGUE RESISTANCE AND METHOD OF MANUFACTURE

#81
20120318031
2012-12-20

Ductmaking apparatus

#82
20120297607
2012-11-29

COUPLING FOR VENTILATION ASSEMBLY

#83
20120267000
2012-10-25

Method of making a small-diameter composite tube

#84
20120247606
2012-10-04

Low-Molybdenum, High-Strength Low-Alloy 80 ksi Steel Plates Formed by Temperature-Controlled Rolling Without Accelerated Cooling

#85
20120247605
2012-10-04

Molybdenum-Free, High-Strength, Low-Alloy X80 Steel Plates Formed by Temperature-Controlled Rolling Without Accelerated Cooling

#86
20120247600
2012-10-04

Rotary die forming process and apparatus for fabricating multi-port tubes

#87
20120118426
2012-05-17

COILED TUBING WITH IMPROVED FATIGUE RESISTANCE AND METHOD OF MANUFACTURE

#88
20120006444
2012-01-12

Coiled umbilical tubing

#89
20110253245
2011-10-20

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

#90
20110155275
2011-06-30

DUCT MEANS FOR AN AIR FLOW OR A GAS FLOWAND A METHOD FOR MANUACTURING , HANDLING AND MOUNTING SAID DUCT MEANS

#91
20110041991
2011-02-24

Method for manufacturing tubes by welding

#92
20110030833
2011-02-10

JOINT SYSTEM FOR JOINING ENDS OF PANELS MADE OF INSULATED MATERIAL

#93
20100300574
2010-12-02

MULTIWALL STEEL TUBE

#94
20100194105
2010-08-05

Ventilation duct assembly kit and method of assembly using the same

#95
20100193125
2010-08-05

Method for manufacturing tubes by welding

#96
20100135720
2010-06-03

Duct fastseam

#97
20100077822
2010-04-01

Duct blank seam and apparatus for making a duct blank seam

#98
20100077821
2010-04-01

Duct making apparatus and method

#99
20090087679
2009-04-02

Method of manufacturing lined tubing

#100
20090084152
2009-04-02

Ductmaking apparatus

#101
20090038704
2009-02-12

Motor Vehicle Pipeline and Method for the Manufacturing of a Motor Vehicle Pipeline

#102
20080308674
2008-12-18

Light weight thermoplastic flex foam and hybrid duct system

#103
20080200111
2008-08-21

Sealed ventilation duct

#104
20080092974
2008-04-24

CONDUIT WITH SECURING FLAP

#105
20070145188
2007-06-28

Component, particularly a lightweight hybrid component

#106
20070095514
2007-05-03

Tube for heat exchanger and method of manufacturing the same

#107
20070074776
2007-04-05

Irrigation pipe

#108
20060185751
2006-08-24

Pipe body and forming method of the same

#109
20060174962
2006-08-10

Method of heat shielding an inner tube

#110
20060102242
2006-05-18

Elbow for a conduit

#111
20060073353
2006-04-06

Profiles or tubes consisting of flexibly rolled strip material

#112
20050121096
2005-06-09

Tubing for hydrostatic forming, hydrostatic forming apparatus, and hydrostatic forming method using the apparatus

#113
20050109415
2005-05-26

Two piece air duct section