ClassID:

118945

C21D1/613 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents Gases; Liquefied or solidified normally gaseous material

Recent Application in this class:
#1
20260098314
2026-04-09

Method for Thermal Processing Bullets

#2
20250250650
2025-08-07

HYDROGEN RECYCLING UNIT FOR HIGH PRESSURE GAS QUENCHING

#3
20250019783
2025-01-16

PROCESS AND SYSTEM FOR AUSTEMPERING METAL WORKPIECES

#4
20250011890
2025-01-09

Methods and Apparatuses Related to Payload Launch Vehicles

#5
20240344163
2024-10-17

Methods and Apparatuses Related to Payload Launch Vehicles

#6
20240254580
2024-08-01

Forced air cooling for cooling long steel products

#7
20240173787
2024-05-30

TOOL AND MANUFACTURING METHOD OF IT

#8
20240026490
2024-01-25

RAPID COOLING OF HIGH YIELD STRENGTH SHEET STEEL

#9
20230383788
2023-11-30

BEARING ASSEMBLY

#10
20230383374
2023-11-30

METHODS OF FORMING STEEL SHEETS WITH ENHANCED FLATNESS

#11
20230250500
2023-08-10

Device and Method for Water Spray Quenching

#12
20230243011
2023-08-03

CORROSION PITTING RESISTANT MARTENSITIC STAINLESS STEEL AND METHOD FOR MAKING SAME

#13
20230227929
2023-07-20

Corrosion pitting resistant martensitic stainless steel and method for making same

#14
20230063455
2023-03-02

3D PRINTABLE HARD FERROUS METALLIC ALLOYS FOR POWDER BED FUSION

#15
20230026647
2023-01-26

PROCESS AND PRODUCTION LINE FOR FORMING OBJECTS

#16
20230019923
2023-01-19

TEMPERATURE-CONTROL DEVICE FOR PARTIALLY COOLING A COMPONENT

#17
20220389534
2022-12-08

NB MICROALLOYED HIGH STRENGTH HIGH HOLE EXPANSION STEEL AND PRODUCTION METHOD THEREFOR

#18
20220364192
2022-11-17

GAS QUENCHING CELL

#19
20220290267
2022-09-15

Corrosion pitting resistant martensitic stainless steel and method for making same

#20
20220275989
2022-09-01

Deep Cryogenic Treatment Chamber for Industrial Applications

#21
20220251677
2022-08-11

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

#22
20220195549
2022-06-23

High-strength steels for the formation of wear-protective lubricious tribofilms directly from hydrocarbon fluids

#23
20220018394
2022-01-20

Bearing assembly

#24
20210301362
2021-09-30

3D printable hard ferrous metallic alloys for powder bed fusion

#25
20210164071
2021-06-03

TEMPERATURE-CONTROL DEVICE FOR PARTIALLY COOLING A COMPONENT

#26
20210142944
2021-05-13

Device and method for continuously performing grain boundary diffusion and heat treatment

#27
20210142943
2021-05-13

Continous heat treatment device and method for alloy workpiece or metal workpiece

#28
20210087644
2021-03-25

High pressure instantaneously uniform quench to control part properties

#29
20200318211
2020-10-08

Method for producing a profiled component, and profiled component

#30
20200208232
2020-07-02

Device for treating metal workpieces with cooling gas

#31
20200199701
2020-06-25

Methods of modifying material properties of workpieces using high-pressure-torsion apparatuses

#32
20200199700
2020-06-25

Methods of modifying material properties of workpieces using high-pressure-torsion apparatuses

#33
20200199699
2020-06-25

Methods of modifying material properties of workpieces using high-pressure-torsion apparatuses

#34
20200181723
2020-06-11

Method for thermal processing bullets

#35
20200165710
2020-05-28

Steel with high hardness and excellent toughness

#36
20200095652
2020-03-26

Section and method for cooling a continuous line combining dry cooling and wet cooling

#37
20200071781
2020-03-05

Cooling equipment for continuous annealing furnace

#38
20190382858
2019-12-19

System and method for improving quench air flow

#39
20190360062
2019-11-28

Quenching apparatus

#40
20190276913
2019-09-12

Method of continuously annealing a strip

#41
20190276908
2019-09-12

Wellbore tubular air quenching

#42
20190262944
2019-08-29

3D printable hard ferrous metallic alloys for powder bed fusion

#43
20190234144
2019-08-01

7000 series aluminum alloy ladder, multipurpose ladder and method

#44
20190226038
2019-07-25

Cooling device and method for cooling elements passing through said device

#45
20190136338
2019-05-09

TEMPERATURE-CONTROL DEVICE FOR COMPONENTS

#46
20190093188
2019-03-28

CRYOGENIC CHAMBER SYSTEMS AND METHODS

#47
20190040491
2019-02-07

THERMALLY TREATED METALLIC MATERIALS AND RELATED METHODS

#48
20190027914
2019-01-24

METHOD OF MANUFACTURING ELECTRICAL FEEDTHROUGH INCLUDING PROCESSES FOR REDUCING STRESS IN PACKAGES HAVING A HIGH-CTE METAL AND LOW-CTE SEALING MATERIAL INTERFACE

#49
20180251870
2018-09-06

Method of forming golf club head assembly

#50
20180245173
2018-08-30

Method for Contactlessly Cooling Steel Sheets and Device Therefor

#51
20180202013
2018-07-19

System and method for quenching castings

#52
20180187284
2018-07-05

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

#53
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

#54
20180119243
2018-05-03

Method for producing a planetary gear shaft having increased hardness

#55
20180105917
2018-04-19

Pre-cooling system having controlled internal adjustment

#56
20180080107
2018-03-22

Method for relieving residual stress in cast-in-place liners of HPDC engine blocks

#57
20180051751
2018-02-22

Manufacturing method of precision machine tool bearing with high precision stability

#58
20180036983
2018-02-08

Briquetting roll and method for manufacturing the same

#59
20180015546
2018-01-18

Method for the production of a sintered gear

#60
20170350356
2017-12-07

INJECTOR FOR INJECTING A FLUID, USE OF AN INJECTOR AND METHOD FOR MANUFACTURING AN INJECTOR

#61
20170349968
2017-12-07

Inline laser-based system and method for thermal treatment of continuous products

#62
20170314088
2017-11-02

Zinc-coated hot formed steel component with tailored property

#63
20170307296
2017-10-26

Multi-chamber heat treatment device

#64
20170298464
2017-10-19

COOLING SYSTEMS FOR HEAT-TREATED PARTS AND METHODS OF USE

#65
20170283899
2017-10-05

CARBURIZING AUSTEMPERING PROCESS

#66
20170225209
2017-08-10

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

#67
20170211165
2017-07-27

Method for cooling steel strip and cooling apparatus

#68
20170204489
2017-07-20

METHOD OF FORMING STEEL SHEET, EQUIPMENT FOR FORMING THE SAME, AND FORMED PRODUCT

#69
20170198367
2017-07-13

Quenching apparatus and method for producing metallic material

#70
20170159149
2017-06-08

Hot-rolled steel sheet and production method of therefor

#71
20170121789
2017-05-04

Method for manufacturing austenite-ferrite stainless steel with improved machinability

#72
20170044721
2017-02-16

Hypereutectoid steel rail and preparation method thereof

#73
20170044643
2017-02-16

METHOD AND APPARATUS FOR PRODUCING A STEEL STRIP

#74
20160362765
2016-12-15

Heat chamber furnace for heat treatment with gaseous atmosphere quenching

#75
20160362759
2016-12-15

METHOD FOR PRODUCING HOT-ROLLED SEAMLESS PIPES FROM TRANSFORMABLE STEEL, IN PARTICULAR FOR PIPELINES FOR DEEP-WATER APPLICATIONS, AND CORRESPONDING PIPES

#76
20160362758
2016-12-15

System and method for improving quench air flow

#77
20160355903
2016-12-08

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

#78
20160348206
2016-12-01

METHOD FOR RESTORING THE STRUCTURE OF A STEEL COMPONENT AFTER HEATING AND STEEL COMPONENT OBTAINED BY THE METHOD

#79
20160348205
2016-12-01

METHOD FOR RESTORING THE STRUCTURE OF A STEEL COMPONENT AFTER HEATING AND STEEL COMPONENT OBTAINED BY THE METHOD

#80
20160344022
2016-11-24

Metal hydride alloys with improved rate performance

#81
20160333436
2016-11-17

Multilayer Cutting Blade Having a Stainless Steel Core

#82
20160326609
2016-11-10

Annealing furnace and method for annealing a steel strand

#83
20160298206
2016-10-13

Wellbore tubular air quenching

#84
20160265074
2016-09-15

Precipitation hardening of tantalum coated metals

#85
20160251744
2016-09-01

Bearing steel

#86
20160215359
2016-07-28

High-strength stainless steel pipe

#87
20160214177
2016-07-28

CORROSION AND WEAR RESISTANT COLD WORK TOOL STEEL

#88
20160194730
2016-07-07

HIGH-IMPACT-TOUGHNESS STEEL RAIL AND PRODUCTION METHOD THEREOF

#89
20160194729
2016-07-07

HIGH-STRENGTH AND HIGHLY FATIGUE-RESISTANT STEEL RAIL AND PRODUCTION METHOD THEREOF

#90
20160193687
2016-07-07

RESISTANCE WELDING METHOD FOR SUCKER ROD

#91
20160177410
2016-06-23

Method of hot forming hybrid parts

#92
20160161028
2016-06-09

Seamless steel pipe for line pipe

#93
20160160330
2016-06-09

Superstrength cold-rolled weathering steel sheet and method of manufacturing same

#94
20160160305
2016-06-09

Method of forming golf club head assembly

#95
20160144468
2016-05-26

Method of manufacturing cemented carbide cutting tool and cutting tool manufactured by the method

#96
20160129853
2016-05-12

Motor vehicle moulding ring made from aluminium/magnesium alloy

#97
20160102381
2016-04-14

Production method for plated steel sheet using a steel sheet annealing device

#98
20160102377
2016-04-14

Device for individual quench hardening of technical equipment components

#99
20160101452
2016-04-14

Hot extrusion die tool and method of making same

#100
20160083813
2016-03-24

System and method for quenching castings

#101
20160068922
2016-03-10

Hardened titanium structure for transmission gear applications

#102
20160024606
2016-01-28

Sub-zero treatment device

#103
20160017469
2016-01-21

Process and steel alloys for manufacturing high strength steel components with superior rigidity and energy absorption

#104
20150251268
2015-09-10

Electric resistance welded steel pipe or steel tube having excellent HIC resistance and low-temperature toughness in electric resistance welded part, and method for manufacturing the same

#105
20150096548
2015-04-09

Chisels

#106
20140367898
2014-12-18

COOLING SYSTEMS FOR HEAT-TREATED PARTS AND METHODS OF USE

#107
20140158234
2014-06-12

Device for blowing gas into a face of traveling strip material

#108
20130019796
2013-01-24

Continuous gas carburizing furnace

#109
20120317830
2012-12-20

Hood Assembly for Controllably Cooling Extruded Section Members of Aluminium and Other Metal Materials at an Output of an Extruding Line Therefor.

#110
20120301238
2012-11-29

Chisels

#111
20120247627
2012-10-04

Quenching process and apparatus for practicing said process

#112
20120186320
2012-07-26

METHOD AND MACHINE TOOL FOR THE PROCESSING AND HARDENING OF METALLIC WORKPIECES

#113
20120067467
2012-03-22

QUENCHING DEVICE AND QUENCHING METHOD

#114
20120060977
2012-03-15

Method of manufacturing carburized parts

#115
20110272134
2011-11-10

High frequency surface treatment methods and apparatus to extend downhole tool survivability

#116
20110252849
2011-10-20

STEEL SHEET ANNEALING DEVICE, DEVICE FOR PRODUCING PLATED STEEL SHEET COMPRISING THE SAME, AND PRODUCTION METHOD FOR PLATED STEEL SHEET USING THE SAME

#117
20110098989
2011-04-28

Systems and methods for predicting heat transfer coefficients during quenching

#118
20110084062
2011-04-14

Device for inductive heating and use of such a device

#119
20110030820
2011-02-10

Device for blowing gas onto a face of traveling strip material

#120
20100269961
2010-10-28

Method and apparatus for making high strength metals with a face-centered-cubic structure

#121
20100269367
2010-10-28

DEVICE FOR BLOWING GAS ONTO A FACE OF A TRAVELING STRIP OF MATERIAL

#122
20100200123
2010-08-12

Hardened titanium structure for transmission gear applications

#123
20100186608
2010-07-29

Hot isostatic pressing device

#124
20100043926
2010-02-25

METHOD FOR PREVENTING CARBON STEEL FROM INTERGRANULAR CRACKING

#125
20100001442
2010-01-07

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

#126
20090315228
2009-12-24

METHOD AND DEVICE FOR COOLING AND STABILIZING STRIP IN A CONTINUOUS LINE

#127
20090218738
2009-09-03

Installation for the dry transformation of a material microstructure of semi-finished products

#128
20090115113
2009-05-07

Apparatus for cooling a metal strip

#129
20090090438
2009-04-09

Method and apparatus for making high strength metals with a face-centered-cubic structure

#130
20090065983
2009-03-12

A METHOD AND APPARATUS FOR LIMITING THE VIBRATION OF STEEL OR ALUMINUM STRIPS IN BLOWN-GAS OR -AIR COOLING ZONES

#131
20090065108
2009-03-12

Integrated Reformer and Batch Annealing Processes and Apparatus Therefor

#132
20080251165
2008-10-16

Heat treatment system for a composite turbine engine component

#133
20080197546
2008-08-21

Metal heat treatment system hot-gas quenching apparatus and hot-gas heat treatment system

#134
20080034829
2008-02-14

Apparatus for removing dent in sheet metal and method thereof

#135
20070241485
2007-10-18

Method and apparatus for limiting the vibration of steel or aluminum strips in a blown-gas or -air cooling zones

#136
20070220906
2007-09-27

Method and Device for Rapid Cooling of Work Pieces

#137
20070113937
2007-05-24

Forging quench

#138
20070042309
2007-02-22

Method and apparatus for directional and controlled cooling in vacuum furnaces

#139
20060272752
2006-12-07

Gas quenching method using a recycling facility

#140
20060228465
2006-10-12

Thermal deposition coating method

#141
20060201221
2006-09-14

Method of cooling a hot isostatic pressing device and a hot isostatic pressing tool

#142
20060165533
2006-07-27

Method and device for recycling gas

#143
20060157169
2006-07-20

Gas quenching cell for steel parts

#144
20060151580
2006-07-13

Coating compositions for solder spheres, powders and preforms, methods of production and uses thereof

#145
20060131794
2006-06-22

Hydrogen closed-cycle hardening unit

#146
20060086442
2006-04-27

Hot gas quenching devices, and hot gas heat treating system

#147
20060048868
2006-03-09

Rapid cooling method for parts by convective and radiative transfer

#148
20060037678
2006-02-23

Gas quenching installation and the corresponding quenching method

#149
20050262723
2005-12-01

Gas jet cooling device

#150
20050218371
2005-10-06

Heat transfer fluids and methods of making and using same

#151
20050211029
2005-09-29

Apparatus and method for improving work surface during forming and shaping of materials

#152
20050193743
2005-09-08

High-pressure cryogenic gas for treatment processes

#153
20050012250
2005-01-20

Forging quench

#154
20050006828
2005-01-13

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

#155
20050000597
2005-01-06

Method and device for quenching steel in pressurized air

#156
16159811
2022-04-19

Gas quenching system and method for minimizing distortion of heat treated parts