ClassID:

38335

B21C37/155 - CPC Classification

Classification description:

Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes of special shape; Making tube fittings Making tubes with non circular section

Recent Application in this class:
#1
20260021524
2026-01-22

Method for Forming Hollow Profile Non-Circular Extrusions Using Shear Assisted Processing and Extrusion (ShAPE)

#2
20250281958
2025-09-11

TUBE MANUFACTURING EQUIPMENT FOR SQUARE BATTERY CANS FOR ELECTRIC VEHICLES

#3
20250135519
2025-05-01

THERMALLY BROKEN STRUCTURAL TUBE

#4
20230081786
2023-03-16

Method for Forming Hollow Profile Non-Circular Extrusions Using Shear Assisted Processing and Extrusion (ShAPE)

#5
20210316350
2021-10-14

Method for forming hollow profile non-circular extrusions using shear assisted processing and extrusion (ShAPE)

#6
20210170465
2021-06-10

SQUARE TUBE FORMING METHOD AND SQUARE TUBE FORMING DEVICE

#7
20200124350
2020-04-23

Compliant b-tube for radiator applications

#8
20200122210
2020-04-23

Press device, and method of manufacturing elliptical-cylindrical member

#9
20190275576
2019-09-12

Structural member

#10
20190039108
2019-02-07

Apparatus that manufactures closed-structure part

#11
20180354080
2018-12-13

Method of manufacturing a welded tube

#12
20180311713
2018-11-01

Method for Forming Hollow Profile Non-Circular Extrusions Using Shear Assisted Processing and Extrusion (ShAPE)

#13
20180174716
2018-06-21

Wiring member, manufacturing method of wiring member, and wiring member connection structure

#14
20170274434
2017-09-28

Method of producing shaped article, tooling, and tubular shaped article

#15
20160368034
2016-12-22

Method of manufacturing a welded tubular section using in-line notching and trimming initiated after roll-forming and welding

#16
20160114366
2016-04-28

Apparatus and method for the continuous and progressive shaping of metal strips to give a profile with longitudinally varying cross section

#17
20160094001
2016-03-31

Tube hydroforming of jointless USB stainless steel shell

#18
20150273548
2015-10-01

Method of manufacturing rectangular tube having stepped portion

#19
20150176272
2015-06-25

Square pipe, frame structure, square pipe manufacturing method, and square pipe manufacturing apparatus

#20
20150101388
2015-04-16

Method of manufacturing closed-structure part and apparatus for the same

#21
20150076215
2015-03-19

Method of manufacturing curvilineal closed structure parts without flange and apparatus for the same

#22
20140332267
2014-11-13

Flat wiring member and method of manufacturing the same

#23
20140326351
2014-11-06

Extrusion piece with dissimilar ends

#24
20140196877
2014-07-17

Tube for heat exchanger

#25
20140150263
2014-06-05

Manufacturing method of thin heat pipe

#26
20130174630
2013-07-11

Method and apparatus for forming the profile of deformable materials and deformable tubular sections

#27
20130168054
2013-07-04

HEAT PIPE AND METHOD FOR MANUFACTURING THE SAME

#28
20130020835
2013-01-24

STRUCTURAL TUBE AND METHOD

#29
20130008083
2013-01-10

TOMATO CAGE FORMED OF HOLLOW WIRE

#30
20120241414
2012-09-27

EQUIPMENT AND PROCEDURE FOR THE AUTOMATED MANUFACTURE OF TUBULAR STRUCTURES

#31
20120003496
2012-01-05

Hollow member and an apparatus and method for its manufacture

#32
20110277529
2011-11-17

Method of profiling a tube of given length

#33
20110247794
2011-10-13

FLATTENED TUBES FOR USE IN HEAT EXCHANGERS AND OTHER SYSTEMS, AND ASSOCIATED METHODS OF MANUFACTURE AND USE

#34
20110198873
2011-08-18

Energy absorber for a bumper assembly of a vehicle and method for the manufacture thereof

#35
20110056583
2011-03-10

MULTI-WALLED TUBE AND METHOD OF MANUFACTURE

#36
20100314092
2010-12-16

HEAT TRANSFER TUBE

#37
20100242565
2010-09-30

Method and device for producing closed profiles

#38
20100193064
2010-08-05

Square pipe, frame structure, square pipe manufacturing method, and square pipe manufacturing apparatus

#39
20100024508
2010-02-04

Tubes and method and apparatus for producing tubes

#40
20100000073
2010-01-07

METHOD OF PRODUCING AT LEAST TWO PLANE FUNCTIONAL SURFACES EXTENDING PARALLEL TO EACH OTHER ON A PIPE

#41
20090246550
2009-10-01

Tube

#42
20090241598
2009-10-01

METHOD OF FORMING HOLLOW AND SOLID JEWELRY CHAINS AND CHAINS FORMED THEREFROM

#43
20090241341
2009-10-01

METHOD OF FORMING A JEWELRY CHAIN AND CHAIN FORMED THEREFROM

#44
20090188110
2009-07-30

MICRO HEAT PIPE WITH POLIGONAL CROSS-SECTION MANUFACTURED VIA EXTRUSION OR DRAWING

#45
20090056405
2009-03-05

METHOD OF MACHINING METALLIC TUBES

#46
20090049884
2009-02-26

Method for correcting metal tube and corrective press die

#47
20080307848
2008-12-18

Bulging method and apparatus

#48
20080302160
2008-12-11

Square tube forming roll, square tube forming method, and forming device

#49
20080245513
2008-10-09

Tube for heat exchanger and method of manufacturing tube

#50
20080169489
2008-07-17

Multi-walled tube and method of manufacture

#51
20080141872
2008-06-19

Pressing Method for Sealing Heat Pipe

#52
20080113534
2008-05-15

Hollow Bar Manufacturing Process

#53
20080111385
2008-05-15

Method for manufacturing impact absorber for vehicle

#54
20070130769
2007-06-14

Micro heat pipe with pligonal cross-section manufactured via extrusion or drawing

#55
20070095001
2007-05-03

Continuous process of roll-forming pre-stamped varying shapes

#56
20070074556
2007-04-05

Continuous process of roll-forming stamped sheet

#57
20070050965
2007-03-08

Hollow bar manufacturing process

#58
20070001483
2007-01-04

Metal tube for reinforcing car body and car body reinforcement therewith

#59
20060201665
2006-09-14

Heat exchanger tube having strengthening deformations

#60
20060073353
2006-04-06

Profiles or tubes consisting of flexibly rolled strip material

#61
20050056075
2005-03-17

Process for press forming metal tubes

#62
17021231
2022-04-05

Pulling member