ClassID:

119117

C21D9/60 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length; Furnaces for treating strips or wire; Continuous furnaces for strip or wire with induction heating

Recent Application in this class:
#1
20260001129
2026-01-01

PLASMA APPARATUS FOR THE PRODUCTION OF HIGH QUALITY SPHERICAL POWDERS AT HIGH CAPACITY

#2
20250340966
2025-11-06

Heat treatment line for a hot strip

#3
20250230519
2025-07-17

METHOD FOR ANNEALING HOT-ROLLED STEEL STRIP

#4
20240278298
2024-08-22

System and method for the continuous casting and subsequent flat rolling of a steel strip

#5
20240269734
2024-08-15

METHOD FOR PRODUCING A MICROALLOYED STEEL, A MICROALLOYED STEEL PRODUCED USING THE METHOD, AND A COMBINED CASTING/ROLLING INSTALLATION

#6
20240209471
2024-06-27

ENERGY-EFFICIENT PRODUCTION OF A FERRITIC HOT-ROLLED STRIP IN AN INTEGRATED CASTING-ROLLING PLANT

#7
20240158885
2024-05-16

CONTINUOUS ANNEALING EQUIPMENT, CONTINUOUS ANNEALING METHOD, METHOD OF PRODUCING COLD-ROLLED STEEL SHEETS AND METHOD OF PRODUCING COATED OR PLATED STEEL SHEETS

#8
20240093327
2024-03-21

CONTINUOUS ANNEALER FOR WIRE

#9
20230413395
2023-12-21

ROTATING MAGNET HEAT INDUCTION

#10
20230212708
2023-07-06

METHOD FOR RECRYSTALLISATION ANNEALING OF A NON-GRAIN-ORIENTED ELECTRIC STRIP

#11
20220193741
2022-06-23

Heating device for the inductive heating of a flat steel strip in a hot rolling mill

#12
20220186340
2022-06-16

Energy-efficient production of a ferritic hot-rolled strip in an integrated casting-rolling plant

#13
20220033928
2022-02-03

Hot-band annealing equipment, hot-band annealing method and descaling method for Si-containing hot rolled steel sheet

#14
20210262057
2021-08-26

Device and method for manufacturing metal clad plates in way of continuous casting and rolling

#15
20210164073
2021-06-03

Lead-free copper-zinc alloy that can withstand the marine environment

#16
20210087651
2021-03-25

Kiln comprising a control unit associated with the thermal inertia properties of constitutive elements

#17
20210062291
2021-03-04

Induction heat treating apparatus

#18
20210017624
2021-01-21

Metal strip induction heating method and induction heating apparatus

#19
20200377966
2020-12-03

Heating device and corresponding apparatus and method

#20
20200291501
2020-09-17

Apparatus and method for rapidly heating cold-rolled strip steel

#21
20200232706
2020-07-23

Fast response heaters and associated control systems used in combination with metal treatment furnaces

#22
20200061685
2020-02-27

Method for producing a metal strip in a cast-rolling installation

#23
20190366471
2019-12-05

Method for producing a continuous strip-shaped composite material

#24
20190335548
2019-10-31

Susceptors for induction heating with thermal uniformity

#25
20190329307
2019-10-31

Method and device for producing a continuous strip-shaped composite material

#26
20190276913
2019-09-12

Method of continuously annealing a strip

#27
20190270160
2019-09-05

Method and device for producing a continuous strip-shaped composite material

#28
20190242002
2019-08-08

Manufacture of a stress relieved length of steel having an oxidised surface layer

#29
20190119777
2019-04-25

Method and furnace installation for heat treating metal strip

#30
20180371597
2018-12-27

High strength galvannealed steel sheet and method of producing such steel sheet

#31
20180359817
2018-12-13

Transverse flux induction heating device

#32
20180169763
2018-06-21

Plasma apparatus for the production of high quality spherical powders at high capacity

#33
20180100209
2018-04-12

Method and device for reaction control

#34
20180092163
2018-03-29

Rotating magnet heat induction

#35
20170290102
2017-10-05

Induction heating device for metal strip

#36
20170260604
2017-09-14

Induction heating device for metal strip

#37
20170152581
2017-06-01

Multipurpose processing line for heat treating and hot dip coating a steel strip

#38
20170016087
2017-01-19

High formability dual phase steel

#39
20170002439
2017-01-05

PLANT AND METHOD FOR THE PRODUCTION OF METAL

#40
20170002438
2017-01-05

CONTINUOUS PROCESSING LINE FOR PROCESSING A NON-MAGNETIC METAL STRIP INCLUDING A GALVANNEALING SECTION AND METHOD FOR INDUCTION HEATING OF SAID STRIP IN SAID GALVANNEALING SECTION

#41
20160381737
2016-12-29

Variable width transverse flux electric induction coils

#42
20160377345
2016-12-29

Fast response heaters and associated control systems used in combination with metal treatment furnaces

#43
20160355903
2016-12-08

Apparatus for continuous annealing of strip and method for continuous annealing of same

#44
20160100459
2016-04-07

Control unit of induction heating unit, induction heating system, and method of controlling induction heating unit

#45
20160100458
2016-04-07

Control unit of induction heating unit, induction heating system, and method of controlling induction heating unit

#46
20160010175
2016-01-14

Wire heating system and wire heating method

#47
20160002748
2016-01-07

Method for producing a corrosion-resistant steel sheet

#48
20150292052
2015-10-15

High-strength spring steel wire with excellent hydrogen embrittlement resistance, manufacturing process therefor, and high-strength spring

#49
20150257207
2015-09-10

Transverse flux strip heating with DC edge saturation

#50
20150211089
2015-07-30

Rapid heating apparatus of continuous annealing line

#51
20140137622
2014-05-22

Roll forming method and roll forming apparatus

#52
20140124503
2014-05-08

Method and apparatus for heating steel sheet

#53
20140096578
2014-04-10

Method and apparatus for preparing steel stock before hot rolling

#54
20130146350
2013-06-13

Method for manufacturing high-nitrogen steel wire and overhead power line using same

#55
20130042950
2013-02-21

Method for hot rolling a metal slab, strip or sheet

#56
20130000375
2013-01-03

Method and apparatus for manufacturing a bent member

#57
20120312805
2012-12-13

Transverse flux induction heating device

#58
20120305548
2012-12-06

Transverse flux induction heating device

#59
20120305547
2012-12-06

Control unit of induction heating unit, induction heating system, and method of controlling induction heating unit

#60
20120103974
2012-05-03

TOOL AND METHOD FOR HEAT TREATING AT LEAST PART OF A METALLIC STRUCTURAL PART

#61
20110292962
2011-12-01

Electric induction gas-sealed tunnel furnace

#62
20110036831
2011-02-17

Inductor assembly for transverse flux electric induction heat treatment of electrically conductive thin strip material with low electrical resistivity

#63
20110033729
2011-02-10

Tempered plated wire

#64
20110017368
2011-01-27

Steel Material, Process of Fabricating Steel Material, and Apparatus of Fabricating Steel Material

#65
20100326984
2010-12-30

Induction heating apparatus and induction heating method

#66
20100258216
2010-10-14

Method for annealing a strip of steel having a variable thickness in length direction

#67
20100243644
2010-09-30

Insulated structure of induction heating coil

#68
20100237548
2010-09-23

Steel-sheet continuous annealing equipment and method for operating steel-sheet continuous annealing equipment

#69
20100237066
2010-09-23

COMB-LIKE SLIT LAMINATED YOKE FOR A TRAVELLING-MAGNETIC-FIELD INDUCTOR FOR REHEATING METAL STRIP

#70
20100212856
2010-08-26

Method and device for producing a metal strip by continuous casting and rolling

#71
20100132853
2010-06-03

Method for the Treatment of Metal Sheets

#72
20100101690
2010-04-29

METHOD FOR CONTINOUSLY ANNEALING STEEL STRIP HAVING A CURIE POINT AND CONTINOUS ANNEALING FACILITY OF THE SAME

#73
20100071933
2010-03-25

Electric wire conductor and a method of producing the same

#74
20100044932
2010-02-25

Continuous annealing equipment

#75
20090255924
2009-10-15

Variable width transverse flux electric induction coils

#76
20090194258
2009-08-06

THERMAL ISOLATION SCREEN FOR ISOLATING AN ELECTROMAGNETIC INDUCTOR, AND HEAT TREATMENT INSTALLATION COMPRISING SUCH A SCREEN

#77
20090158975
2009-06-25

DEVICE FOR SECURING A FURNACE PROVIDED WITH A RAPID COOLING AND HEATING SYSTEM OPERATING UNDER CONTROLLED ATMOSPHERE

#78
20090101636
2009-04-23

Transverse Flux Electric Inductors

#79
20090065103
2009-03-12

METHOD AND APPARATUS FOR IMPROVED FORMABILITY OF GALVANIZED STEEL HAVING HIGH TENSILE STRENGTH

#80
20090050622
2009-02-26

Heat treatment of flexibly rolled strip

#81
20080264529
2008-10-30

Apparatus and Method for Continuously Processing Long Bar by Heat Treatment Using Induction Heating

#82
20080236235
2008-10-02

Heat-Treatment Apparatus for Steel Plate and Manufacturing Line of Steel Plate Having the Heat-Treatment Apparatus

#83
20080110227
2008-05-15

Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method

#84
20080110226
2008-05-15

Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method

#85
20080028813
2008-02-07

Process and Production Line for Manufacturing Hot Ultrathin Steel Strips with Two Casting Lines for a Single Endless Rolling Line

#86
20070267407
2007-11-22

Multi-frequency heat treatment of a workpiece by induction heating

#87
20070194010
2007-08-23

Transverse flux electric inductors

#88
20070051152
2007-03-08

Device for heating a metal strip, and apparatuses equipped with a device of this type, for producing hot-rolled metal strip

#89
20060260378
2006-11-23

Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method

#90
20060196870
2006-09-07

Transversal field heating installation for inductively heating flat objects

#91
20060086436
2006-04-27

Tempered plated wire and methods of manufacture

#92
20050247704
2005-11-10

Multi-frequency heat treatment of a workpiece by induction heating

#93
20050161131
2005-07-28

Oil tempered wire for cold forming coil springs