ClassID:

118947

C21D1/63 - CPC Classification

Classification description:

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

Sub-classes:
Recent Application in this class:
#1
20250361574
2025-11-27

QUENCHING METHOD

#2
20250340961
2025-11-06

FIRMWARE-BASED OUT-OF-ORDER COMMAND SCHEDULER

#3
20250257420
2025-08-14

FIRMWARE-BASED OUT-OF-ORDER COMMAND SCHEDULER

#4
20250230517
2025-07-17

QUENCHING METHOD AND QUENCHING DEVICE

#5
20250197957
2025-06-19

QUENCHING TOOL AND QUENCHING METHOD

#6
20250190651
2025-06-12

QUENCHING-ATTITUDE-SETTING PROGRAM, QUENCHING-ATTITUDE-SETTING METHOD, AND QUENCHING-ATTITUDE-SETTING DEVICE

#7
20250129445
2025-04-24

QUENCHING APPARATUS, CONTINUOUS ANNEALING FACILITY, QUENCHING METHOD, METHOD FOR MANUFACTURING STEEL SHEET, AND METHOD FOR MANUFACTURING COATED STEEL SHEET

#8
20250003020
2025-01-02

FIRMWARE-BASED OUT-OF-ORDER COMMAND SCHEDULER

#9
20240417836
2024-12-19

STEEL PLATE HAVING HIGH STRENGTH AND EXCELLENT LOW-TEMPERATURE IMPACT TOUGHNESS, AND METHOD FOR MANUFACTURING SAME

#10
20240360528
2024-10-31

QUENCHING APPARATUS, QUENCHING METHOD, AND METHOD OF MANUFACTURING METAL SHEET

#11
20240318272
2024-09-26

QUENCHING APPARATUS, METHOD FOR QUENCHING, METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET, AND METHOD FOR MANUFACTURING COATED STEEL SHEET

#12
20230416858
2023-12-28

TRACK PART AND METHOD FOR PRODUCING A TRACK PART

#13
20230374619
2023-11-23

CONTINUOUS INTENSIVE QUENCHING APPARATUS

#14
20230213282
2023-07-06

Method and apparatus for hardening mold grids using clamp quenching

#15
20220213574
2022-07-07

PROCESSING LINE FOR THE CONTINUOUS PROCESSING OF METAL STRIPS HAVING A DUAL PURPOSE OF PRODUCING STRIPS THAT ARE ANNEALED AND DIP-COATED OR NOT COATED, AND CORRESPONDING COOLING TOWER AND METHOD FOR SWITCHING FROM ONE CONFIGURATION TO THE OTHER

#16
20210310092
2021-10-07

Thin steel sheet and method for manufacturing the same

#17
20210285067
2021-09-16

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

#18
20210140003
2021-05-13

Continuous intensive quenching apparatus

#19
20210071276
2021-03-11

METHOD FOR QUENCH SEASONING OF IRON/STEEL COOKWARE

#20
20210033144
2021-02-04

Adjustable spacer with hardened ends

#21
20200299794
2020-09-24

Apparatus and methods for heating and quenching tubular members

#22
20200263732
2020-08-20

Adjustable spacer with hardened ends

#23
20200263266
2020-08-20

Method of manufacturing a tubular product and tubular product

#24
20200199703
2020-06-25

TRACK PART AND METHOD FOR PRODUCING A TRACK PART

#25
20200190648
2020-06-18

System and method for heat treating aluminum alloy castings

#26
20200102626
2020-04-02

Quenching heat treatment device and on-line intelligent control method for the cooling characteristics of quenching liquid

#27
20190338806
2019-11-07

Adjustable spacer with hardened ends

#28
20190300975
2019-10-03

Metal Coating Method

#29
20190256937
2019-08-22

Apparatus for microtreatment of iron-based alloy

#30
20190136911
2019-05-09

Adjustable spacer with hardened ends

#31
20190010564
2019-01-10

Rapid-cooling quenching apparatus and rapid-cooling quenching method

#32
20190003001
2019-01-03

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

#33
20180371564
2018-12-27

Method for heat treating by induction an alloy component for generating microstructure gradients and an alloy component heat treated according to the method

#34
20180080096
2018-03-22

Decarburized self-piercing rivet

#35
20180066330
2018-03-08

Wall member useful in quenching

#36
20170327926
2017-11-16

Method for manufacturing metal sheet and rapid quenching unit

#37
20170321292
2017-11-09

COLD TREATMENT FOR IMPROVING THE LOAD-BEARING CAPACITY OF METALLIC COMPONENTS

#38
20170314117
2017-11-02

ROLLING-CONTACT SHAFT MEMBER

#39
20170314088
2017-11-02

Zinc-coated hot formed steel component with tailored property

#40
20170268075
2017-09-21

METHODS FOR QUENCHING METAL TUBES

#41
20170121784
2017-05-04

Method of hardening a clothing wire for processing textile fibres, and apparatus system therefor

#42
20160362757
2016-12-15

Induction heating apparatus, carriers, and methods for heat treating parts

#43
20160319411
2016-11-03

SYSTEM AND METHOD FOR HEAT TREATING ALUMINUM ALLOY CASTINGS

#44
20160237516
2016-08-18

Apparatus for quenching

#45
20160223259
2016-08-04

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

#46
20160145120
2016-05-26

Component recovery from metal quenching bath or spray

#47
20160138124
2016-05-19

Jig and heating apparatus with a jig

#48
20160138121
2016-05-19

Heating apparatus, heat treatment apparatus, and heating method

#49
20150368743
2015-12-24

Thermal treatment process of a steel sheet and device for its implementation

#50
20150368731
2015-12-24

OIL QUENCHING HEAT TREATMENT FURNACE TRAY

#51
20150361536
2015-12-17

Forced water cooling of thick steel wires

#52
20150344985
2015-12-03

Induction heating apparatus, carriers, and methods for heat treating parts

#53
20150344984
2015-12-03

Ultrasound-assisting quenching process and device for performing the same

#54
20150232972
2015-08-20

Non-normalized steel composition and connecting rod using the same, and method of manufacturing the connecting rod

#55
20150137434
2015-05-21

Apparatus to quench a ring-shaped article

#56
20150137433
2015-05-21

Deformation correcting device

#57
20150047758
2015-02-19

Method and apparatus of manufacturing high strength cold rolled steel sheet

#58
20140327193
2014-11-06

Press quench machine

#59
20140311711
2014-10-23

Cooling tank for rails

#60
20140230972
2014-08-21

Wall member useful in quenching

#61
20140159286
2014-06-12

Rod or wire manufacturing system, related methods, and related products

#62
20140137992
2014-05-22

Thick-walled high-strength seamless steel pipe with excellent sour resistance for pipe for pipeline, and process for producing same

#63
20140090754
2014-04-03

Process for cooling a metal workload in a multimedia quench system

#64
20130160903
2013-06-27

Method for quenching steel pipe and method for producing steel pipe using the same

#65
20120234824
2012-09-20

Heating apparatus, heat treatment apparatus, and heating method

#66
20120168043
2012-07-05

System and method for hardening rails

#67
20120118446
2012-05-17

AQUEOUS METAL QUENCHING MEDIUM

#68
20120098171
2012-04-26

Cooling tank for rails

#69
20120085469
2012-04-12

METHOD FOR MANUFACTURING PROJECTION MATERIALS FOR A SHOT PEENING

#70
20120034053
2012-02-09

Handling machine for rails and handling process associated thereto

#71
20110272867
2011-11-10

Handling machine for handling rails and handling process thereof

#72
20110206307
2011-08-25

Wheel bearing apparatus for a vehicle

#73
20110198786
2011-08-18

Method and device for the continuous creation of a bainite structure in a carbon steel, particularly in a strip steel

#74
20110037207
2011-02-17

Hybrid method manufacturing apparatus for torsion beam

#75
20110036830
2011-02-17

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

#76
20110036470
2011-02-17

TORSION BEAM MANUFACTURING METHOD USING HYBRID METHOD

#77
20100300586
2010-12-02

Process of thermal treatment of rails

#78
20100242785
2010-09-30

Car wash conveyor dolly and method of making same

#79
20100230014
2010-09-16

Method of quenching a ring-shaped article and apparatus therefor

#80
20100193091
2010-08-05

Heat treatment method

#81
20100143080
2010-06-10

Device and method for loading and unloading a heat treatment furnace

#82
20100132854
2010-06-03

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

#83
20090308503
2009-12-17

Rod or wire manufacturing system, related methods, and related products

#84
20090200713
2009-08-13

System and method for hardening rails

#85
20090152256
2009-06-18

METHOD FOR MANUFACTURING A STAMPED/HEATED PART FROM A STEEL SHEET PLATED WITH ALUMINUM ALLOY

#86
20090139616
2009-06-04

Method and device for the continuous creation of a bainite structure in a carbon steel, particularly in a strip steel

#87
20080308978
2008-12-18

Heat-Treating of Rolling Elements for Bearings, and Furnace for Implementing Such Treatment

#88
20080011394
2008-01-17

Thermodynamic metal treating apparatus and method

#89
20060292513
2006-12-28

Method and device for cooling or quenching slabs and sheets with water in a cooling pond

#90
20060243357
2006-11-02

Method and device for cooling a steel strip

#91
20050161869
2005-07-28

Installation for the heat-treatment of parts

#92
16698708
2023-07-04

Spring induction heater

#93
15803057
2019-02-19

Adjustable spacer with hardened ends

#94
14287983
2015-06-02

Induction heating apparatus, carriers, and methods for heat treating parts