Patents-Review.com
ClassID:

38323 ⎘

B21C37/123 - 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 or metal hoses with helically arranged seams of coated strip material; Making multi-wall tubes

Recent Application in this class:
#1
20230271241
2023-08-31

Method for producing a carcass, a method of producing a flexible pipe and a flexible pipe

 #2
20200282440
2020-09-10

Methods for making layered tubular structures

 #3
20200263812
2020-08-20

HELICALLY WOUND TUBULAR STRUCTURES

 #4
20190316711
2019-10-17

Immobilised insert

 #5
20190084022
2019-03-21

Horizontally wound coil of metallurgically heat treated metal tubing in a multi-layered configuration

 #6
20180354063
2018-12-13

Ultrasonic welding of annular components

 #7
20180224028
2018-08-09

Line element having an inner element and an outer element

 #8
20180154414
2018-06-07

Helical layer structure and manufacturing method of helical layer structure

 #9
20160250822
2016-09-01

Radiant insulation protector manufacturing apparatus and radiant insulation protector manufactured using same

 #10
20130233433
2013-09-12

Process for manufacturing a wound hose, particularly a spiral wound metallic hose, as well as wound hose and flexible conduction element with a wound hose

 #11
20120291956
2012-11-22

Apparatus for and method of manufacturing helically wound structures

 #12
20120103051
2012-05-03

Method for manufacturing a flexible piping device for an exhaust gas system of a motor vehicle

 #13
20110226764
2011-09-22

MOBILE UNIT FOR THE CONSTRUCTION OF ELONGATED TUBULAR BODIES

 #14
20110174047
2011-07-21

PROCESS FOR THE MANUFACTURING OF AN ELONGATED TUBE AND USE OF THE TUBE

 #15
20110030834
2011-02-10

MULTI-LAYERED CORRUGATED TUBULAR ARTICLE

 #16
20100139848
2010-06-10

PRODUCTION OF TUBULAR BODY COMPRISING TWO OR MORE LAYERS OF HELICALLY BENDED STRIPS

 #17
20100003440
2010-01-07

Tubular Members and Method of Forming Same

 #18
20090165518
2009-07-02

Apparatus for and Method of Manufacturing Helically Wound Structures

 #19
20080135157
2008-06-12

Manufacture of Reinforced Tubular Products of Predetermined Length

 #20
20070199973
2007-08-30

Tubular filter material machine and methods