ClassID:

118960

C21D1/785 - CPC Classification

Classification description:

General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering; Combined heat-treatments not provided for above Thermocycling

Recent Application in this class:
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TREATMENT METHOD AND PROCESS FOR VALVE SEAT

#2
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CONTROLLED THERMAL COEFFICIENT PRODUCT SYSTEM AND METHOD

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LOW THERMAL EXPANSION CAST STEEL AND METHOD OF PRODUCING SAME

#4
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METHOD FOR PRODUCING A SCREW, AND SCREW

#5
20220275989
2022-09-01

Deep Cryogenic Treatment Chamber for Industrial Applications

#6
20220010395
2022-01-13

HIGH SURFACE COMPRESSIVE STRESS FOR THROUGH HARDENING

#7
20210222267
2021-07-22

Method for producing a ultra high strength coated or not coated steel sheet and obtained sheet

#8
20210156006
2021-05-27

Method for processing highly alloyed aluminum alloy sheet with high rolling yield

#9
20210002739
2021-01-07

Controlled thermal coefficient product system and method

#10
20190264300
2019-08-29

Method for producing a ultra high strength coated or not coated steel sheet and obtained sheet

#11
20190264299
2019-08-29

Method for producing an ultra high strength coated or not coated steel sheet and obtained sheet

#12
20190017141
2019-01-17

Method of heat treating a fastening member

#13
20180282832
2018-10-04

Annealed steel material and method for manufacturing the same

#14
20180195398
2018-07-12

Assembly, treated article, and process of treating a turbine component

#15
20170144241
2017-05-25

Impeller brazing method

#16
20170137910
2017-05-18

Method for producing an ultra high strength coated or not coated steel sheet and obtained sheet

#17
20170016083
2017-01-19

Steel part and method of manufacturing the same

#18
20160348206
2016-12-01

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

#19
20160348203
2016-12-01

Controlled thermal coefficient product system and method

#20
20160107236
2016-04-21

Methods of making parts from at least one elemental metal powder

#21
20140008847
2014-01-09

MANUFACTURING METHOD OF HIGH-STRENGTH AND HIGH-TOUGHNESS THIN STEEL AND HEAT TREATMENT APPARATUS

#22
20120042994
2012-02-23

MANUFACTURING METHOD OF HIGH-STRENGTH AND HIGH-TOUGHNESS THIN STEEL AND HEAT TREATMENT APPARATUS

#23
20100163142
2010-07-01

OSCILLATING HEAT TREATMENT METHOD FOR A SUPERALLOY

#24
20090314396
2009-12-24

Method for efficient heat treatment of steel

#25
20090260298
2009-10-22

Cryogenic Treatment Systems and Processes for Grinding Wheels and Bonded Abrasive Tools

#26
20090194175
2009-08-06

SHUT-OFF DEVICE AND PROCESS FOR PRODUCING A SHUT-OFF DEVICE

#27
20090170414
2009-07-02

Cryogenic treatment processes for diamond abrasive tools

#28
20070127860
2007-06-07

Tapered roller bearing an automotive pinion shaft supporting apparatus utilizing same tapered roller bearing

#29
20070042310
2007-02-22

Method and apparatus for the treatment of a component