ClassID:

118952

C21D1/70 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering; Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching

Recent Application in this class:
#1
20260022433
2026-01-22

MIXED POWDER, MGO PARTICLES, METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET, METHOD FOR MANUFACTURING MGO PARTICLES, AND METHOD FOR MANUFACTURING MIXED POWDER

#2
20220042129
2022-02-10

Press hardening method

#3
20220042125
2022-02-10

Annealing separator composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain-oriented electrical steel sheet

#4
20200340075
2020-10-29

A COATED STEEL SUBSTRATE

#5
20200318213
2020-10-08

A COATED STEEL SUBSTRATE

#6
20200318210
2020-10-08

A COATED STEEL SUBSTRATE

#7
20200123627
2020-04-23

Magnesium oxide for annealing separators, and grain-oriented magnetic steel sheet

#8
20200123017
2020-04-23

Magnesium oxide for annealing separators, and grain-oriented magnetic steel sheet

#9
20190376155
2019-12-12

Curable protective coating composition

#10
20190338382
2019-11-07

METHOD FOR HEAT-TREATING METAL MOLDED ARTICLE AND MANUFACTURING METHOD

#11
20190300975
2019-10-03

Metal Coating Method

#12
20180230563
2018-08-16

METHODS OF FORMING COMPONENTS UTILIZING ULTRA-HIGH STRENGTH STEEL AND COMPONENTS FORMED THEREBY

#13
20170050414
2017-02-23

Methods for the production of clad steel products

#14
20160237517
2016-08-18

Method for heat treatment of stainless member, and method for producing forged stainless product

#15
20160230242
2016-08-11

REGENERATIVE HEAT TREATMENT METHOD FOR HEAT-RESISTANT METAL MEMBER SUFFERING FROM CREEP DAMAGE

#16
20160076115
2016-03-17

Method and apparatus for laser quenching

#17
20150211084
2015-07-30

METAL PROCESSING METHOD AND METAL PRODUCT PROCESSED THEREBY

#18
20140327193
2014-11-06

Press quench machine

#19
20140318351
2014-10-30

Annealing system for cartridge casings

#20
20140090754
2014-04-03

Process for cooling a metal workload in a multimedia quench system

#21
20130292005
2013-11-07

ANNUALING SEPARATION AGENT FOR PRODUCING GRAIN-ORIENTED SILICON STEEL WITH SMOOTH SURFACE AND GOOD MAGNETIC PROPERTY

#22
20130186262
2013-07-25

Case annealer

#23
20130180629
2013-07-18

Automobile part, manufacturing method for same and manufacturing device of same

#24
20130115376
2013-05-09

Antioxidant agent and process for producing metallic material

#25
20120325117
2012-12-27

Method for hot shaping a workpiece and agent for reducing the heat emission

#26
20120279868
2012-11-08

MANUFACTURING GALVANNEALED SHEETS BY HEAT-TREATING ELECTROLYTICALLY FINISHED SHEETS

#27
20120241050
2012-09-27

NITRIDING PROCESS FOR MARAGING STEEL

#28
20120217168
2012-08-30

HIGH SPEED TIN PLATING PROCESS

#29
20120197387
2012-08-02

STENT WITH INTERNAL FORCE AND FABRICATION METHOD THEREOF

#30
20120097298
2012-04-26

Method for producing partially hardened steel components

#31
20120085467
2012-04-12

Fabrication process of coated stamped parts

#32
20110239720
2011-10-06

Production method of seamless pipe or tube, and oxidizing gas supply unit

#33
20110236581
2011-09-29

Treatment solution for insulation coating for grain-oriented electrical steel sheets and method for producing grain-oriented electrical steel sheet having insulation coating

#34
20110198001
2011-08-18

Alloy component including a fine grain structure, a coarse grain structure and a transitional structure

#35
20110186186
2011-08-04

Iron and steel material having quenched surface layer part, method for producing the iron and steel material, and quenched component

#36
20110076419
2011-03-31

METHOD FOR DEVELOPING FINE GRAINED, THERMALLY STABLE METALLIC MATERIAL

#37
20110036721
2011-02-17

Electrical Discharge Coating Method and Green Compact Electrode Used Therein

#38
20100308491
2010-12-09

Method for hot shaping a workpiece and agent for reducing the heat emission

#39
20100221441
2010-09-02

Heat treatment method

#40
20090218014
2009-09-03

Method for producing duplex stainless steel seamless pipe

#41
20090205798
2009-08-20

Method for producing antifriction layer of a plain bearing

#42
20090126838
2009-05-21

Uniform heat treatment process for hardening steel

#43
20090101736
2009-04-23

Anti-oxidation spray methods and spray equipment for steel billets

#44
20090071580
2009-03-19

Method of heat treating a superalloy component and an alloy component

#45
20090047537
2009-02-19

Oriented magnetic steel plate excellent in coating adhesion and method of production of same

#46
20090038715
2009-02-12

Water-cooling method of steel material

#47
20080283407
2008-11-20

High speed tin plating process

#48
20080029927
2008-02-07

Method and apparatus for heat-treating an article and a fixture for use in the same

#49
20070009666
2007-01-11

Method of imparting non-stick property to metal surface

#50
20050133482
2005-06-23

Method and apparatus for heat-treating an article and a fixture for use in the same

#51
20050014453
2005-01-20

Process of preparing metal parts to be heated by means of infrared radiance