ClassID:

38312

B21C37/09 - 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 with welded or soldered seams of coated strip material ; Making multi-wall tubes

Recent Application in this class:
#1
20230278088
2023-09-07

METHOD FOR PRODUCING MULTI-WALLED TUBES, AND MULTIWALLED TUBE

#2
20220299153
2022-09-22

Amorphous inner-coated pipe and method for producing same

#3
20200263812
2020-08-20

HELICALLY WOUND TUBULAR STRUCTURES

#4
20200038927
2020-02-06

A MANDREL ADJUSTMENT ASSEMBLY FOR A MULTI-WALL PIPE PRODUCTION MADE OF COATED METAL SHEET

#5
20180354063
2018-12-13

Ultrasonic welding of annular components

#6
20180231334
2018-08-16

Multiply-wound tube, method of manufacturing multiply-wound tube, and device for manufacturing multiply-wound tube

#7
20160265097
2016-09-15

Molten metal plating furnace, system for producing and method for producing plated product, and metal plated steel tube obtained by means of said method for producing

#8
20160131282
2016-05-12

Multi-walled pipe and manufacture thereof

#9
20160082492
2016-03-24

Method for producing a multi-layer large pipe

#10
20160053662
2016-02-25

Method for encasing a body of an exhaust gas system

#11
20150102088
2015-04-16

Method of producing metallic composite pipes

#12
20150059911
2015-03-05

Metal-containing polymeric reinforced pipe, method for manufacturing same and pipeline produced using said pipe

#13
20150040375
2015-02-12

Metal cleaning and deposition process for coiled tubing using electro plasma

#14
20140110247
2014-04-24

Method and apparatus for coating thin foil with a boron coating

#15
20130202887
2013-08-08

Method for encasing a body of an exhaust gas system

#16
20130199657
2013-08-08

Steel plate for producing pipe highly resistant to fuel vapor corrosion, pipe using same and method for producing pipe

#17
20120315398
2012-12-13

Method and system for manufacturing metal-plated steel pipe

#18
20120216395
2012-08-30

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

#19
20120073348
2012-03-29

METHOD FOR PRODUCING SEALING ELEMENTS

#20
20120064331
2012-03-15

METAL LAMINATION FILM

#21
20110250365
2011-10-13

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

#22
20110179849
2011-07-28

Multi-layered pipes for use in the hydrocarbon industry, methods of forming the same, and machines for forming the same

#23
20110146366
2011-06-23

PRODUCTION-OPTIMIZED PROCESS FOR PRODUCING A MULTILAYER PIPE

#24
20100300574
2010-12-02

MULTIWALL STEEL TUBE

#25
20090293981
2009-12-03

MULTI-LAYER PIPE AND METHOD FOR ITS MANUFACTURE

#26
20090288467
2009-11-26

Multi-layer pipe and method for its manufacture

#27
20090038704
2009-02-12

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

#28
20090003972
2009-01-01

Method and device for the production of a can body, and can body

#29
20080034571
2008-02-14

Tube mill with in-line braze coating process

#30
20070177962
2007-08-02

Method and device for the production of a can body, and can body

#31
20070082215
2007-04-12

Double walled metal tube, metal band and strip, and method of coating a metal strip

#32
20060249559
2006-11-09

TUBE MILL WITH IN-LINE BRAZE COATING SPRAY PROCESS

#33
20060219393
2006-10-05

Aluminum heat exchanger

#34
20050283967
2005-12-29

TUBE MILL WITH IN-LINE BRAZE COATING SPRAY PROCESS

#35
20050249965
2005-11-10

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

#36
20050034306
2005-02-17

Method for producing a sectionally-reinforced tubular member of metal, in particular for supporting structures in motor vehicles

#37
20050006900
2005-01-13

System and method for coupling conduit

#38
20050006899
2005-01-13

Weldable conduit and method

#39
20050005983
2005-01-13

Weldable conduit method of forming