ClassID:

38331

B21C37/151 - 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 multiple passages

Recent Application in this class:
#1
20240384817
2024-11-21

EXTRUDED, MULTI-HOLE-PIPE AND MANUFACTURING METHOD THEREOF

#2
20240239629
2024-07-18

PRE-STRETCHING ROLLER, METHOD OF MANUFACTURING THE PRE-STRETCHING ROLLER AND WINDING APPARATUS

#3
20210302108
2021-09-30

Dimpled heat exchanger tube

#4
20200217589
2020-07-09

Tube assembly for heat management apparatus and method of manufacturing the same

#5
20200124350
2020-04-23

Compliant b-tube for radiator applications

#6
20170254443
2017-09-07

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

#7
20160327346
2016-11-10

Heat exchanger with mechanically offset tubes and method of manufacturing

#8
20160003546
2016-01-07

Multichannel heat exchanger tubes with flow path inlet sections

#9
20150375345
2015-12-31

Method for producing a roll-clad aluminum workpiece, roll-clad aluminum workpiece, and use therefor

#10
20150047819
2015-02-19

Heat exchanger tube, heat exchanger and corresponding production method

#11
20140196877
2014-07-17

Tube for heat exchanger

#12
20130248158
2013-09-26

Method for manufacturing refrigerant guide tube of heat exchanger, refrigerant guide tube manufactured using the method and heat exchanger with the refrigerant guide tube

#13
20130180694
2013-07-18

Solderable fluid channel for a heat exchanger of aluminum

#14
20130180616
2013-07-18

Double pipe and coupling structure for the pipe

#15
20130168054
2013-07-04

HEAT PIPE AND METHOD FOR MANUFACTURING THE SAME

#16
20130126119
2013-05-23

Manufacturing method for a multi-channel copper tube, and manufacturing apparatus for the tube

#17
20120247600
2012-10-04

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

#18
20120216395
2012-08-30

APPARATUS FOR MANUFACTURING A MULTILAYER TUBE FOR THE HYDRAULIC CONNECTION AND WIRING OF SOLAR PANELS

#19
20120097732
2012-04-26

CLAD ROLLING MILL FOR JOINING ONE OR MORE PROFILES

#20
20120097288
2012-04-26

CLAD ROLLED METAL TUBE

#21
20120031602
2012-02-09

Method of forming heat exchanger tubes

#22
20110315364
2011-12-29

Multichannel heat exchanger tubes with flow path inlet sections

#23
20110296891
2011-12-08

CORRUGATED INSERT CUTTING APPARATUS AND METHOD

#24
20110247794
2011-10-13

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

#25
20110120586
2011-05-26

Downhole recovery production tube system

#26
20100288481
2010-11-18

FLAT TUBE, FLAT TUBE HEAT EXCHANGER, AND METHOD OF MANUFACTURING SAME

#27
20100243225
2010-09-30

FLAT TUBE, FLAT TUBE HEAT EXCHANGER, AND METHOD OF MANUFACTURING SAME

#28
20100064756
2010-03-18

Micro-channel tubes and apparatus and method for forming micro-channel tubes

#29
20100025027
2010-02-04

Heat exchanger with collecting tube, collecting tube, and method for producing the same

#30
20100024508
2010-02-04

Tubes and method and apparatus for producing tubes

#31
20100021755
2010-01-28

Manufacturing method for a multi-channel copper tube, and manufacturing apparatus for the tube

#32
20090263598
2009-10-22

METHOD FOR PRODUCING A METAL TUBE BY CLAD ROLLING ONE MORE PROFILES TO FORM AT LEAST ONE CHANNEL, A CLAD ROLLING MILL FOR JOINING ONE OR MORE PROFILES, A CLAD ROLLED METAL TUBE

#33
20090242180
2009-10-01

Tube assembly for heat exchanger

#34
20090223656
2009-09-10

HEAT EXCHANGER TUBE

#35
20090218085
2009-09-03

FLAT TUBE, FLAT TUBE HEAT EXCHANGER, AND METHOD OF MANUFACTURING SAME

#36
20090211095
2009-08-27

Microgrooves as Wick Structures in Heat Pipes and Method for Fabricating the Same

#37
20090188110
2009-07-30

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

#38
20090056927
2009-03-05

Flat tube, flat tube heat exchanger, and method of manufacturing same

#39
20090020278
2009-01-22

Flat tube, flat tube heat exchanger, and method of manufacturing same

#40
20090020277
2009-01-22

Flat tube, flat tube heat exchanger, and method of manufacturing same

#41
20090019696
2009-01-22

FLAT TUBE, FLAT TUBE HEAT EXCHANGER, AND METHOD OF MANUFACTURING SAME

#42
20090019694
2009-01-22

Flat tube, flat tube heat exchanger, and method of manufacturing same

#43
20090019689
2009-01-22

Flat tube, flat tube heat exchanger, and method of manufacturing same

#44
20090014164
2009-01-15

Flat tube, flat tube heat exchanger, and method of manufacturing same

#45
20080313906
2008-12-25

METHOD OF FORMING HEAT EXCHANGER TUBES

#46
20080264620
2008-10-30

Flat Tube, Platelike Body for Making the Flat Tube and Heat Exchanger

#47
20080164007
2008-07-10

Method of making a folded condenser tube

#48
20080105322
2008-05-08

Metal plate for producing flat tube, flat tube and process for producing the flat tube

#49
20070295490
2007-12-27

Flat Tube for a Heat Exchanger

#50
20070246117
2007-10-25

Method of manufacturing double pipe

#51
20070240473
2007-10-18

Method and apparatus for flat tube roll forming and flat tube formed thereby

#52
20070144722
2007-06-28

Tube production method, heat-exchange tube produced by the method and heat exchanger using the heat-exchange tube

#53
20070138237
2007-06-21

Method of manufacturing heat exchanger tube and heat exchanger

#54
20070130769
2007-06-14

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

#55
20070095514
2007-05-03

Tube for heat exchanger and method of manufacturing the same

#56
20070051499
2007-03-08

Semifinished flat tube, process for producing same, flat tube, heat exchanger comprising the flat tube and process for fabricating the heat exchanger

#57
20060279082
2006-12-14

Tube having multi-channel tube and branch tubes, connection structure thereof and connection method therefore

#58
20060260724
2006-11-23

Aluminum alloy-based extruded multi-path flat tubes for the heat exchanger and method of manufacture thereof

#59
20060260376
2006-11-23

Tubular metal body, method of producing same, liner for pressure vessel and method of producing same

#60
20060213247
2006-09-28

Method of manufacturing a coiled tubing system

#61
20060201220
2006-09-14

Rolling apparatus and method of making product of miscellaneous cross section with use of same

#62
20060118282
2006-06-08

Heat exchanger tubing by continuous extrusion

#63
20060118192
2006-06-08

Method of manufacturing an insulated pipeline

#64
20060112557
2006-06-01

Tube having reinforcing structures made of profile rolled metal and method of producing same

#65
20050279488
2005-12-22

Multiple-channel conduit with separate wall elements

#66
20050217340
2005-10-06

Extruded composite profile and method for separately winding two individual simultaneously extruded tubes with the aid of a winding device