ClassID:

38343

B21C37/202 - 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 helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with guides parallel to the tube axis

Recent Application in this class:
#1
20250065384
2025-02-27

DEVICES AND METHOD FOR SHAPING A TUBULAR HOLLOW ELEMENT

#2
20240239629
2024-07-18

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

#3
20210071516
2021-03-11

Downhole tubing or umbilical with sensor and method for manufacturing it

#4
20210025458
2021-01-28

Electric power steering assembly

#5
20190128332
2019-05-02

Electric power steering assembly

#6
20180356009
2018-12-13

Method for manufacturing a tube of metal as well as a tube of metal

#7
20150273548
2015-10-01

Method of manufacturing rectangular tube having stepped portion

#8
20140230248
2014-08-21

Method of making lightweight heat pipe

#9
20130168054
2013-07-04

HEAT PIPE AND METHOD FOR MANUFACTURING THE SAME

#10
20130086968
2013-04-11

Groove processing device and groove processing method

#11
20130043004
2013-02-21

LIGHTWEIGHT HEAT PIPE AND METHOD OF MAKING THE SAME

#12
20110277529
2011-11-17

Method of profiling a tube of given length

#13
20110252624
2011-10-20

Corrugated conduit and method of expanding to form a lined tubular member

#14
20110247196
2011-10-13

Method of manufacturing a rotor

#15
20100229996
2010-09-16

METHOD AND APPARATUS FOR FORMING A LINED CONDUIT

#16
20090305797
2009-12-10

Method for forming hollow profiles

#17
20090211095
2009-08-27

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

#18
20090199924
2009-08-13

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#19
20090158799
2009-06-25

Metal Pipe and Manufacturing Method Thereof

#20
20080148797
2008-06-26

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#21
20070289349
2007-12-20

Method for producing longitudinal grooves in cylindrical workpieces

#22
20070235163
2007-10-11

Indented tube for a heat exchanger

#23
20070113611
2007-05-24

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#24
20070022800
2007-02-01

Method for forming a lined conduit

#25
20060213246
2006-09-28

Backward extrusion process for inner profiles

#26
20060201223
2006-09-14

Cold roll forming method for reducing a diameter of a metal pipe, and a metal pipe product having its diameter reduced by such method

#27
20060048556
2006-03-09

Method of manufacturing a splined member for use in a driveshaft assembly

#28
20060021210
2006-02-02

Method of forming a lined tubular member

#29
20050257374
2005-11-24

Cylindrical bearing member and method and apparatus for manufacturing same

#30
20050233813
2005-10-20

Split die for forming grooved workpiece