ClassID:

118946

C21D1/62 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering Quenching devices

Sub-classes:
Recent Application in this class:
#1
20260001117
2026-01-01

FORMING SYSTEM, FORMING DEVICE, AND FORMING METHOD

#2
20250318020
2025-10-09

TRAVERSE HARDENING DEVICE AND TRAVERSE HARDENING METHOD

#3
20250290169
2025-09-18

HOT-STAMPED PART AND METHOD FOR MANUFACTURING SAME

#4
20250250650
2025-08-07

HYDROGEN RECYCLING UNIT FOR HIGH PRESSURE GAS QUENCHING

#5
20250206063
2025-06-26

QUENCHING A WHEEL COMPRISING A HUB

#6
20250188582
2025-06-12

Iron-Based Heat and Corrosion Resistant Alloy With Enhanced Air Quenchability

#7
20230318478
2023-10-05

DUAL-FREQUENCY POWER-SUPPLY APPARATUS, HIGH-FREQUENCY HEATING APPARATUS, AND HIGH-FREQUENCY QUENCHING APPARATUS

#8
20230220505
2023-07-13

Method of induction-hardening a rolling-element bearing ring

#9
20230078751
2023-03-16

VOLUME HEAT TREATMENT METHOD AND RELATED SYSTEM

#10
20220364192
2022-11-17

GAS QUENCHING CELL

#11
20220251677
2022-08-11

Cooling device for blowing gas onto a surface of a traveling strip

#12
20220226874
2022-07-21

EXTRUSION PRESS SYSTEMS AND METHODS

#13
20220203419
2022-06-30

EXTRUSION PRESS SYSTEMS AND METHODS

#14
20220185012
2022-06-16

Quenching a wheel comprising a hub

#15
20220127694
2022-04-28

METHOD OF COOLING CONTROL FOR STEEL PLATE, COOLING CONTROL DEVICE, AND METHOD OF MANUFACTURING STEEL PLATE

#16
20210316348
2021-10-14

Cooling device and method for operating the same

#17
20210285067
2021-09-16

MICROTREATMENT OF IRON-BASED ALLOY, APPARATUS AND METHOD THEREFOR AND ARTICLES RESULTING THEREFROM

#18
20210277493
2021-09-09

Method and system for cooling hot objects

#19
20210254190
2021-08-19

METHOD TO CONTROL THE COOLING OF A FLAT METAL PRODUCT

#20
20210176833
2021-06-10

HEATING COIL AND QUENCHING DEVICE

#21
20210162478
2021-06-03

Cooling device and method for operating same

#22
20210003345
2021-01-07

Automated system and method to perform, compute and analyze the cooling curve of quenchants

#23
20200348081
2020-11-05

Device for supporting and guiding a flow for metallic workpieces, and method for thermochemical treatment

#24
20200331046
2020-10-22

Cooling system for cooling metal rolling stock

#25
20200308663
2020-10-01

Quenching nozzle for induction hardening system

#26
20200208696
2020-07-02

Vibration-damping and noise-reducing brake disc

#27
20200173010
2020-06-04

Method and system for cooling metal parts after nitriding

#28
20200080168
2020-03-12

Cooling System

#29
20200047233
2020-02-13

Extrusion press systems and methods

#30
20200047232
2020-02-13

Extrusion press systems and methods

#31
20190382858
2019-12-19

System and method for improving quench air flow

#32
20190360066
2019-11-28

CONTROL METHOD FOR ROLLER QUENCHING PROCESS OF HEAVY-PIECE WEIGHT AND LARGE-SECTION ULTRA-HEAVY PLATE

#33
20190360062
2019-11-28

Quenching apparatus

#34
20190352729
2019-11-21

INDUCTION-HARDENING SYSTEM FOR INDUCTION HARDENING OF A LARGE ROLLING-ELEMENT BEARING RING

#35
20190276908
2019-09-12

Wellbore tubular air quenching

#36
20190256937
2019-08-22

Apparatus for microtreatment of iron-based alloy

#37
20190226038
2019-07-25

Cooling device and method for cooling elements passing through said device

#38
20190106763
2019-04-11

Interference fit quench plug assembly and methods for use thereof

#39
20190106762
2019-04-11

Rail manufacturing method and manufacturing equipment

#40
20190024199
2019-01-24

Heat treatment method and heat treatment device

#41
20190003001
2019-01-03

Oil-immersion quenching cooling precursor and oil-immersion quenching cooling method

#42
20180327874
2018-11-15

GAS QUENCHING METHOD

#43
20180237872
2018-08-23

Device and method for tempering sections of metal components

#44
20180237871
2018-08-23

Oven device for heat-treating a metal blank

#45
20180187284
2018-07-05

High-pressure liquid-state or supercritical-state quenching apparatus

#46
20180155803
2018-06-07

Method for the homogeneous non-contact temperature control of non-endless surfaces which are to be temperature-controlled, and device therefor

#47
20180142315
2018-05-24

Hardening apparatus for a long member, and a hardening method for a long member

#48
20180073091
2018-03-15

Tool for realising a press quenching and tempering method

#49
20180066330
2018-03-08

Wall member useful in quenching

#50
20180016652
2018-01-18

Heat treatment apparatus

#51
20170307296
2017-10-26

Multi-chamber heat treatment device

#52
20170225209
2017-08-10

Outer layer material for composite roll for rolling and composite roll for rolling

#53
20170178805
2017-06-22

Rapidly quenched Fe-based soft-magnetic alloy ribbon and its production method and core

#54
20170175214
2017-06-22

Heat treatment device and cooling device

#55
20170107590
2017-04-20

Interference fit quench plug assembly and methods for use thereof

#56
20170080468
2017-03-23

Extrusion press systems and methods

#57
20170073783
2017-03-16

Quench plug systems and their use

#58
20160377346
2016-12-29

HEAT TREATMENT APPARATUS

#59
20160362758
2016-12-15

System and method for improving quench air flow

#60
20160319409
2016-11-03

Wide iron-based amorphous alloy, precursor to nanocrystalline alloy

#61
20160298206
2016-10-13

Wellbore tubular air quenching

#62
20160263699
2016-09-15

System and method for hot stamping of components

#63
20160223259
2016-08-04

Multi-chamber furnace for vacuum carburizing and quenching of gears, shafts, rings and similar workpieces

#64
20160102377
2016-04-14

Device for individual quench hardening of technical equipment components

#65
20160068939
2016-03-10

AlMgSi strip for applications having high formability requirements

#66
20160068922
2016-03-10

Hardened titanium structure for transmission gear applications

#67
20160040263
2016-02-11

Rail manufacturing method and manufacturing equipment

#68
20160024606
2016-01-28

Sub-zero treatment device

#69
20150354020
2015-12-10

Induction hardening apparatus and methods

#70
20150344984
2015-12-03

Ultrasound-assisting quenching process and device for performing the same

#71
20150275346
2015-10-01

HEAT TREATMENT APPARATUS

#72
20150247222
2015-09-03

Surface-treated component manufacturing method and apparatus

#73
20150069680
2015-03-12

ELECTROMAGNETIC PUMP, QUENCH TANK, AND LIQUID METAL LOOP

#74
20140360715
2014-12-11

Rail cooling method

#75
20140324213
2014-10-30

Extrusion press systems and methods

#76
20140284851
2014-09-25

Hardening cell

#77
20140230972
2014-08-21

Wall member useful in quenching

#78
20140138054
2014-05-22

Cooling apparatus, and manufacturing apparatus and manufacturing method of hot-rolled steel sheet

#79
20140090754
2014-04-03

Process for cooling a metal workload in a multimedia quench system

#80
20140083571
2014-03-27

Induction hardening apparatus and methods

#81
20140053958
2014-02-27

Gamma titanium dual property heat treat system and method

#82
20130312879
2013-11-28

Spray quench systems for heat treated metal products

#83
20130312875
2013-11-28

Spray quench systems for heat treated metal products

#84
20130240506
2013-09-19

Induction hardening system and method

#85
20130175741
2013-07-11

Load transport mechanism for a multi-station heat treating system

#86
20130133784
2013-05-30

Method and apparatus for treatment of a rail weld

#87
20130074995
2013-03-28

METHOD AND DEVICE FOR WIRE PATENTING BY RADIATION-CONVECTION HEAT TRANSFER

#88
20130032257
2013-02-07

Tailored hardening of boron steel

#89
20120325372
2012-12-27

Method for reduction of time in a gas carburizing process and cooling apparatus utilizing a high speed quenching oil flow rate

#90
20120242014
2012-09-27

Mist cooling apparatus, heat treatment apparatus, and mist cooling method

#91
20120222783
2012-09-06

AlMgSi strip for applications having high formability requirements

#92
20120144635
2012-06-14

METHODS AND SYSTEMS FOR MANUFACTURING AN AXLE

#93
20120133089
2012-05-31

Heat treatment furnace

#94
20120107644
2012-05-03

Localized Induction Heating For Residual Stress Optimization

#95
20110284132
2011-11-24

METHOD FOR REDUCTION OF TIME IN A GAS CARBURIZING PROCESS AND COOLING APPARATUS

#96
20110247732
2011-10-13

Induction hardening system and method

#97
20110132054
2011-06-09

METHOD FOR LONGITUDINALLY GUIDING ROLLING STOCK, ESPECIALLY A HOT-ROLLED STEEL STRIP, AND HOT-ROLLING MILL FOR CARRYING OUT SAID METHOD

#98
20110098989
2011-04-28

Systems and methods for predicting heat transfer coefficients during quenching

#99
20110036830
2011-02-17

HEAT TREATING METHOD OF ROLLING BEARING DEVICE FOR WHEEL AND COOLING UNIT FOR INNER SHAFT

#100
20110030442
2011-02-10

Method for shaping from a blank of a hardening material with differential cooling

#101
20110017368
2011-01-27

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

#102
20100236669
2010-09-23

Method for the heat treatment of castings using an air quench and system for implementing the method

#103
20100200123
2010-08-12

Hardened titanium structure for transmission gear applications

#104
20100193091
2010-08-05

Heat treatment method

#105
20100137117
2010-06-03

Quick change system for a machine

#106
20100132854
2010-06-03

Microtreatment of iron-based alloy, apparatus and method therefor, and articles resulting therefrom

#107
20100065992
2010-03-18

System and method for annealing nuclear fission reactor materials

#108
20100001442
2010-01-07

Method and installation for the dry transformation of a material structure of semifinished products

#109
20090321966
2009-12-31

Quench zone design using spray nozzles

#110
20090320263
2009-12-31

Methods for manufacturing an axle

#111
20090288740
2009-11-26

METHOD AND SYSTEM FOR PRODUCING A CAST COMPONENT

#112
20090189436
2009-07-30

Bearing device for wheel

#113
20090183804
2009-07-23

Localized induction heating for residual stress optimization

#114
20090126835
2009-05-21

Quenching methods and apparatus

#115
20090115113
2009-05-07

Apparatus for cooling a metal strip

#116
20090056839
2009-03-05

Method for Improving Residual Stress of Structure Member

#117
20090000710
2009-01-01

Quenching process utilizing compressed air

#118
20080034829
2008-02-14

Apparatus for removing dent in sheet metal and method thereof

#119
20070181234
2007-08-09

Spray quench systems for heat treated metal products

#120
20070158883
2007-07-12

Liquid slag quick quenching apparatus and method

#121
20070125463
2007-06-07

Fluidized bed cryogenic apparatus and continuous cooling method for quenching of steel parts

#122
20070102853
2007-05-10

DROSS COMPRESSION APPARATUS INCLUDING A COOLING SYSTEM FOR COOLING THE COMPRESSION HEAD AND COOLING METHOD

#123
20060272752
2006-12-07

Gas quenching method using a recycling facility

#124
20060226584
2006-10-12

Steel-member manufacturing facility, thin bearing-member and thrust bearing

#125
20060175742
2006-08-10

Track bushing and method and apparatus for producing the same

#126
20060165533
2006-07-27

Method and device for recycling gas

#127
20060144481
2006-07-06

Track bushing and method and apparatus for producing the same

#128
20060144480
2006-07-06

Track bushing and method and apparatus for producing the same

#129
20060037678
2006-02-23

Gas quenching installation and the corresponding quenching method

#130
20050193743
2005-09-08

High-pressure cryogenic gas for treatment processes

#131
20050006828
2005-01-13

Apparatus for heat treatment of structural body parts in the automobile industry

#132
20050006827
2005-01-13

Arrangement for cooling heat-treated wires

#133
20050000597
2005-01-06

Method and device for quenching steel in pressurized air