ClassID:

38358

B21C37/30 - 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 Finishing tubes, e.g. sizing, burnishing

Recent Application in this class:
#1
20230182188
2023-06-15

Overlapping and progressive forming method for high-performance multi-element NiAl-based alloy tubular part

#2
20230145306
2023-05-11

METHOD AND APPARATUS FOR MANUFACTURING METAL PIPE

#3
20230141285
2023-05-11

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

#4
20220275468
2022-09-01

STEEL MATERIAL FOR A TORSIONALLY STRESSED COMPONENT, METHOD FOR PRODUCING A TORSIONALLY STRESSED COMPONENT FROM SAID STEEL MATERIAL, AND COMPONENT MADE THEREOF

#5
20210370374
2021-12-02

BURNISHING MACHINE

#6
20200316664
2020-10-08

Tube shaping tool

#7
20200009629
2020-01-09

Method of manufacturing a coiled tubing string

#8
20200001339
2020-01-02

Method for manufacturing clad steel pipe

#9
20190255646
2019-08-22

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

#10
20190091745
2019-03-28

Method and tool for calibration of a hollow profile component produced by extrusion for automobile manufacturing

#11
20190061044
2019-02-28

METHOD FOR MANUFACTURING DOUBLE PIPE

#12
20180200770
2018-07-19

Method of manufacturing a coiled tubing string

#13
20180104731
2018-04-19

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

#14
20180036830
2018-02-08

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

#15
20180023163
2018-01-25

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

#16
20170341130
2017-11-30

Sizing die for densifying surface of sintered body, production method using same, and product obtained therefrom

#17
20160001419
2016-01-07

Brush-type deburring machine for multiple cutting with individual deburring

#18
20150314357
2015-11-05

Press forming method

#19
20150273551
2015-10-01

Axial alignment apparatus and method for maintaining concentricity between a slotted tubular and a seamer head

#20
20150217353
2015-08-06

Skiving tool

#21
20150183015
2015-07-02

Method of producing cold-worked centrifugal cast tubular products

#22
20150090361
2015-04-02

UOE steel pipe and structure

#23
20140202576
2014-07-24

Method for producing welded steel pipe and welded steel pipe

#24
20130312237
2013-11-28

Method for roller burnishing a cylindrical component part surface

#25
20130260652
2013-10-03

Brush-type deburring machine

#26
20130000793
2013-01-03

Welded steel pipe for linepipe having high compressive strength and excellent sour gas resistance and manufacturing method thereof

#27
20120267138
2012-10-25

Hand-held power tool and production method

#28
20120125070
2012-05-24

Method for producing a small thin-walled tube from a magnesium alloy

#29
20120111084
2012-05-10

Shape adjusting tool

#30
20120031160
2012-02-09

LOW CARBON WELDED TUBE AND PROCESS OF MANUFACTURE THEREOF

#31
20110283765
2011-11-24

Pipe end shape correcting apparatus for UOE metal pipe

#32
20110250365
2011-10-13

Continuously Manufactured Colored Metallic Products and Method of Manufacture of Such Products

#33
20110174046
2011-07-21

Method for producing a large steel tube

#34
20110131775
2011-06-09

Device for preparing the end faces of thin-walled jackets for welding

#35
20100242636
2010-09-30

DEVICE FOR FINAL CALIBRATION OF TAPERED TUBULAR SHAFTS

#36
20100095729
2010-04-22

Rounding system and method used in the manufacture of wind towers

#37
20100038836
2010-02-18

Mandrel to facilitate thin sheet fabrication

#38
20100019423
2010-01-28

Method for the monobloc sizing for the tempering casings and device for implementing the method

#39
20090145193
2009-06-11

Method for producing ultra thin wall metallic tube by cold rolling method

#40
20090139725
2009-06-04

Use of low impact expansion to reduce flow friction

#41
20090042491
2009-02-12

Method and apparatus for circumferential interior treatment of pipe elbows

#42
20080134745
2008-06-12

Rectangular/square spiral ducting systems with flange connectors

#43
20080097248
2008-04-24

Mechanical honing of metallic tubing for soldering in a medical device construction

#44
20080053183
2008-03-06

Methods and systems for reducing tensile residual stresses in compressed tubing and metal tubing products produced from same

#45
20080011037
2008-01-17

Process for manufacturing a seamless tube

#46
20070277580
2007-12-06

Aluminum pipe production method

#47
20070221299
2007-09-27

Method for the monobloc sizing for the tempering casings and device for implementing the method

#48
20060289606
2006-12-28

Monitoring in tube production

#49
20060174669
2006-08-10

Apparatus for rectifying round pipe and tubing

#50
20050262982
2005-12-01

Coolant delivery system and continuous fabrication apparatus which includes the system

#51
20050249965
2005-11-10

Continuously manufactured colored metallic products and method of manufacture of such products

#52
20050245178
2005-11-03

Apparatus for machining a cylinder bore surface and method of machining the cylinder bore surface using the apparatus

#53
20050204528
2005-09-22

Method to reduce the width of a slot in a pipe or tube

#54
16520555
2020-08-11

Integrated method for forming and performance control of NiAl alloy thin-walled tubular parts

#55
14325772
2015-10-20

Connection and elbow in a gas appliance