ClassID:

119060

C21D9/0006 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor Details, accessories not peculiar to any of the following furnaces

Sub-classes:
Recent Application in this class:
#1
20260103770
2026-04-16

CONTINUOUS HEATING APPARATUS

#2
20260078461
2026-03-19

RADIANT TUBE HEATER AND HEAT TREATMENT FURNACE

#3
20260028689
2026-01-29

EMISSIVE LINER ARRANGEMENTS FOR ANNEALING OPERATIONS, AND RELATED PROCESS CHAMBERS, SYSTEMS, COMPONENTS, AND METHODS

#4
20260016230
2026-01-15

METHOD FOR SETTING AN OVEN ATMOSPHERE IN A HEAT-TREATMENT OVEN

#5
20250109469
2025-04-03

METHOD AND SYSTEM FOR HEAT TREATMENT OF METAL ALLOY SHEET

#6
20250044030
2025-02-06

DEVICE FOR TEMPERING AN OBJECT

#7
20240392402
2024-11-28

HEAT TREATMENT METHOD AND HEAT TREATMENT FURNACE

#8
20240200160
2024-06-20

HEAT TREATMENT FURNACE

#9
20240011142
2024-01-11

PROCESSING METHOD AND PROCESSING APPARATUS FOR METAL COMPONENT

#10
20230220990
2023-07-13

DIRECT FLAME BURNER UNIT FOR FURNACES FOR THE THERMO-CHEMICAL TREATMENT OF STEEL STRIPS IN CONTINUOUS HOT-DIP GALVANIZING PLANTS

#11
20230167521
2023-06-01

Shield for heat treating a plate workpiece

#12
20230104619
2023-04-06

HOT STAMPING COMPONENT AND METHOD OF MANUFACTURING THE SAME

#13
20220136077
2022-05-05

Heat treatment method and heat treatment furnace

#14
20220097132
2022-03-31

Additive Manufactured Powder Processing System

#15
20220090226
2022-03-24

METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#16
20220074008
2022-03-10

METHOD AND SYSTEM OF MANUFACTURING COILED TUBING

#17
20220033945
2022-02-03

Method and system for heat treatment of metal alloy sheet

#18
20210180605
2021-06-17

Tool for simultaneous local stress relief of each of a multiple of linear friction welds of a rotor forging

#19
20210040575
2021-02-11

System and method for manufacturing a part

#20
20200318777
2020-10-08

Decompression heat-insulating pipe structure

#21
20200080781
2020-03-12

HEAT TREATMENT APPARATUS AND HEAT TREATMENT METHOD

#22
20200080165
2020-03-12

Heat treatment apparatus

#23
20190211832
2019-07-11

Tool for simultaneous local stress relief of each of a multiple of linear friction welds of a rotor forging

#24
20190119773
2019-04-25

Method for nitriding grain-oriented electrical steel sheet

#25
20180231313
2018-08-16

Heating device for hot stamping

#26
20180231170
2018-08-16

Decompression heat-insulating pipe structure

#27
20180224053
2018-08-09

Decompression heat-insulating pipe structure

#28
20180187282
2018-07-05

Method of heat treatment

#29
20180044747
2018-02-15

Method and system for manufacturing coiled tubing

#30
20180014358
2018-01-11

Heating furnace

#31
20170362695
2017-12-21

Surface treatment method and surface treatment device

#32
20170334763
2017-11-23

Use of alumina-chromium alloy in heat treatment

#33
20170320135
2017-11-09

Additive manufactured powder processing system

#34
20170175214
2017-06-22

Heat treatment device and cooling device

#35
20170044637
2017-02-16

Method and system for enhancing rivetability

#36
20170037489
2017-02-09

Furnace system for the controlled heat treatment of sheet metal parts

#37
20170022596
2017-01-26

Carburizing device

#38
20160273065
2016-09-22

Process gas preparation apparatus for an industrial furnace system and an industrial furnace system for gas carburizing and hardening of metal workpieces utilizing same

#39
20160216032
2016-07-28

Connection structure, magnetic annealing device using same, and connecting method

#40
20160177412
2016-06-23

High rate magnetic annealing system and method of operating

#41
20150361536
2015-12-17

Forced water cooling of thick steel wires

#42
20150354051
2015-12-10

APPARATUS AND METHOD FOR NITRIDING GRAIN-ORIENTED ELECTRICAL STEEL SHEET

#43
20150352621
2015-12-10

HEATING DEVICE FOR HOT STAMPING

#44
20150343531
2015-12-03

VERTICAL HEAT TREATMENT SYSTEM

#45
20150337407
2015-11-26

Support device for radiant tubes

#46
20150258590
2015-09-17

Pilger rolling train

#47
20150218759
2015-08-06

METHOD FOR PRODUCING BAINITIC RAIL STEELS, TRACK ELEMENT AND INSTALLATION FOR CARRYING OUT THE METHOD

#48
20150211089
2015-07-30

Rapid heating apparatus of continuous annealing line

#49
20150176904
2015-06-25

Sample holder annealing apparatus using the same

#50
20150176901
2015-06-25

Thermal processing furnace for workpieces

#51
20150076751
2015-03-19

Method of reducing dew point of atmosphere gas in annealing furnace, apparatus for the same and method of producing cold-rolled and annealed steel sheet

#52
20150050611
2015-02-19

Walking-beam type heating furnace

#53
20150004305
2015-01-01

Method and system for using an irreversible thermo-chromatic indicator for quality assurance of a part subjected to heat treating

#54
20140374969
2014-12-25

Closed transport fluid system for furnace-internal heat exchange between annealing gases

#55
20140353887
2014-12-04

METALLURGICAL HEAT TREATING SYSTEM WITH HEAT RECOVERY

#56
20140345757
2014-11-27

Method and device for partially hardening sheet metal components

#57
20140345753
2014-11-27

SYSTEM AND METHOD FOR HOT-FORMING BLANKS

#58
20140334106
2014-11-13

Bulk amorphous alloy heat sink

#59
20140333015
2014-11-13

BELL-TYPE FURNACE WITH A HEAT DISPENSING DEVICE POSITIONED WITHIN A PROTECTIVE HOOD, IN PARTICULAR FED BY AN ENERGY SOURCE EXTERNAL TO THE FURNACE CHAMBER, FOR DISPENSING HEAT TO ANNEALING GAS

#60
20140318351
2014-10-30

Annealing system for cartridge casings

#61
20140175713
2014-06-26

Method for operating a continuous annealing line for the processing of a rolled good

#62
20140158256
2014-06-12

Plant and method for hot forming blanks

#63
20140084523
2014-03-27

Apparatus for the continuous thermal treatment of electrically conductive continually cast material and arrangement of a sliding contact element

#64
20140083572
2014-03-27

Furnace system for the controlled heat treatment of sheet metal components

#65
20140008048
2014-01-09

Radiant tubular element for industrial plants and similar

#66
20130313763
2013-11-28

FURNACE AND METHOD OF OPERATING THE FURNACE

#67
20130300040
2013-11-14

Magneto-thermal processing apparatus and methods

#68
20130277896
2013-10-24

Process and installation for heating a metallic strip, notably for an annealing

#69
20130186262
2013-07-25

Case annealer

#70
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.

#71
20120234438
2012-09-20

Process for Production of Cold-Rolled Steel Sheet Having Excellent Press Moldability, and Cold-Rolled Steel Sheet

#72
20120152410
2012-06-21

Method And Device for Energy-Efficient Hot Forming

#73
20100272422
2010-10-28

Retort furnace for heat and/or thermochemical treatment

#74
20100213647
2010-08-26

PROCESS AND INSTALLATION FOR HEATING A METALLIC STRIP, NOTABLY FOR AN ANNEALING

#75
20100193091
2010-08-05

Heat treatment method

#76
20100173072
2010-07-08

Method and device for controlling oxidizing-reducing of the surface of a steel strip running continuously through a radiant tubes furnace for its galvanizing

#77
20100110175
2010-05-06

Video camera inspection system for roller hearth heat treating furnaces and the like

#78
20080236779
2008-10-02

VERTICAL HEAT TREATMENT SYSTEM

#79
20080041505
2008-02-21

Continuous process for production of steel part with regions of different ductility

#80
20070204848
2007-09-06

Sealing device for a gas inlet to an oven or the like

#81
20060163782
2006-07-27

Ceramic core spacer blocks for high temperature preheat cycles

#82
20060051715
2006-03-09

Thermal processing system having slot eductors

#83
20060049556
2006-03-09

Device for homogeneous impingement of a planar surface of a tool with a heated gas

#84
20050158685
2005-07-21

Heat treatment furnace

#85
20050012254
2005-01-20

Annealing apparatus