ClassID:

160919

F27B3/085 - CPC Classification

Classification description:

Hearth-type furnaces, e.g. of reverberatory type ; Tank furnaces heated electrically, with or without any other source of heat Arc furnaces

Recent Application in this class:
#1
20260104203
2026-04-16

SELF-CLEANING SPRAY COOLING SYSTEM FOR A METALLURGICAL FURNACE

#2
20260071286
2026-03-12

METHOD OF PRODUCING HOT METAL USING SOLID-REDUCING FURNACE AND SUBMERGED ARC FURNACE

#3
20260068008
2026-03-05

FURNACES FOR SUBSTRATE GLASS BASED ON MOLYBDENUM ELECTRODE HEATING AND ANTI-OXIDATION METHODS THEREFOR

#4
20260009096
2026-01-08

ELECTRIC FURNACE EQUIPMENT AND METHOD FOR MANUFACTURING MOLTEN METAL

#5
20260009094
2026-01-08

CARBON DIOXIDE EMISSION REDUCTION SYSTEM FOR ELECTRIC ARC FURNACES UTILIZING ALGAE FOR CARBON DIOXIDE ABSORBTION

#6
20250377163
2025-12-11

DUAL ELECTRODE DC ELECTRIC ARC MELTER

#7
20250347465
2025-11-13

DUAL ELECTRODE DC ARC FURNACE

#8
20250304454
2025-10-02

METHOD FOR PREPARING ZIRCONIUM BORIDE THROUGH ELECTRIC SMELTING

#9
20250283184
2025-09-11

CARBON DIOXIDE EMISSION REDUCTION SYSTEM FOR ELECTRIC ARC FURNACES UTILIZING ALGAE FOR CARBON DIOXIDE ABSORBTION

#10
20250212299
2025-06-26

MONITORING SYSTEM FOR AN ELECTRODE COUPLING DEVICE

#11
20250197967
2025-06-19

MELTING HEARTH, COLD HEARTH MELTING SYSTEM, AND PROCESS FOR PRODUCING HIGH TEMPERATURE METAL ALLOYS

#12
20250185128
2025-06-05

FURNACE POWER SUPPLY APPARATUS, SYSTEM FOR THE POWER SUPPLY OF AN ELECTRIC ARC FURNACE OR A SUBMERGED ARC-RESISTANCE FURNACE, ELECTRIC ARC FURNACE OR SUBMERGED ARC-RESISTANCE FURNACE AND OPERATING METHOD

#13
20250155195
2025-05-15

METHOD TO SUPPLY ELECTRIC POWER TO FURNACES FOR MELTING AND/OR HEATING METAL MATERIALS, AND CORRESPONDING APPARATUS

#14
20250119991
2025-04-10

OPERATING METHOD FOR AN ARC FURNACE

#15
20250093100
2025-03-20

ELECTRIC FURNACE

#16
20250044029
2025-02-06

ELECTRICAL ARC FURNACE FOR MELTING METAL MATERIAL AND STEEL PLANT COMPRISING SAID ELECTRIC ARC FURNACE

#17
20250003684
2025-01-02

METHOD OF PRODUCING MOLTEN IRON

#18
20240377136
2024-11-14

MELTING EQUIPMENT AND OPERATION METHOD FOR MELTING EQUIPMENT

#19
20240369300
2024-11-07

SLOPED SIDEWALL FOR A FURNANCE

#20
20240302100
2024-09-12

MELTING PLANT AND CORRESPONDING MANAGEMENT METHOD

#21
20240284566
2024-08-22

OPERATING METHOD FOR AN ELECTRIC ARC FURNACE

#22
20240237167
2024-07-11

DC BRUSH-ARC FURNACE WITH ARC DEFLECTION COMPENSATION

#23
20240138038
2024-04-25

DC BRUSH-ARC FURNACE WITH ARC DEFLECTION COMPENSATION

#24
20240118032
2024-04-11

VIDEO-DEVICE-EQUIPPED ELECTRIC FURNACE

#25
20240114604
2024-04-04

POWER SUPPLY FOR AN ELECTRIC ARC FURNACE

#26
20240102737
2024-03-28

BURNER WITH IMAGING DEVICE, ELECTRIC FURNACE PROVIDED WITH SAID BURNER, AND METHOD FOR MANUFACTURING MOLTEN IRON USING SAID ELECTRIC FURNACE

#27
20230314077
2023-10-05

Continuously Charged Electric Arc Furnace System

#28
20230288142
2023-09-14

Batchwise-Charged Electric Arc Furnace System

#29
20230204291
2023-06-29

METHOD AND SYSTEM FOR COMPENSATING FOR ELECTRODE BURN-OFF IN AN ARC FURNANCE

#30
20230115752
2023-04-13

SUPPLY UNIT FOR A HIGH-POWER LOAD AND ARRANGEMENT INCLUDING THE SUPPLY UNIT

#31
20230062705
2023-03-02

Electric power supply apparatus for a high-power user device

#32
20230040089
2023-02-09

MELTING METHOD IN AN ELECTRIC ARC FURNACE AND MELTING APPARATUS

#33
20230037249
2023-02-02

Systems and methods for graphite electrode identification and monitoring

#34
20230003450
2023-01-05

INTELLIGENT SYSTEM FOR CONTROLLING OPERATIONAL PARAMETERS OF A SMELTING FURNACE

#35
20220412651
2022-12-29

Converter Device and Electric Power Supply Apparatus

#36
20220364792
2022-11-17

Cassette design drop out box, combustion chamber, duct and electric arc furnace upper shell system

#37
20220333219
2022-10-20

Method of stirring liquid metal in an electric arc furnace

#38
20220236007
2022-07-28

NON-WATER COOLED CONSUMABLE ELECTRODE VACUUM ARC FURNACE FOR CONTINUOUS PROCESS

#39
20220181600
2022-06-09

Utilization of electric arc furnace flue dust emerging from steel industry (during the production of ferro alloys and steel from scraps) as electrode material in energy applications

#40
20220154300
2022-05-19

Sensing and control of position of an electrical discharge

#41
20220034586
2022-02-03

Method for operating an electric arc furnace

#42
20220003498
2022-01-06

Sloped sidewall for a furnance

#43
20210410242
2021-12-30

Self-baking electrode

#44
20210394243
2021-12-23

System and method for an electrode seal assembly

#45
20210364237
2021-11-25

Methods for preheating metal-containing pellets

#46
20210355554
2021-11-18

Production apparatus and method for electric arc furnace steelmaking with fully continuous ultra-short process

#47
20210333047
2021-10-28

Method and system for detection of low quality graphite electrode on an EAF

#48
20210329752
2021-10-21

Melting furnace electrode handling devices

#49
20210318069
2021-10-14

Device for maintaining a tap hole of an electric arc furnace

#50
20210270528
2021-09-02

Steelmaking and ironmaking scrap segregation and packaging system and method thereof

#51
20210231373
2021-07-29

Melting method in an electric arc furnace and corresponding apparatus

#52
20210231372
2021-07-29

Electric power method for an electric furnace and corresponding apparatus

#53
20210190428
2021-06-24

WALL SYSTEM FOR A FURNACE, A FURNACE COMPRISING SUCH A WALL SYSTEM AND A METHOD FOR PROVIDING SUCH A WALL SYSTEM

#54
20210190427
2021-06-24

Electric furnace and method for melting and reducing iron oxide-containing iron raw material

#55
20210164731
2021-06-03

Furnace assembly for a metal-making process

#56
20210156615
2021-05-27

A DETECTION SYSTEM FOR DETECTING THE LEVEL OF METAL IN A MELTING FURNACE

#57
20210040573
2021-02-11

Smelting assembly for the production of steel

#58
20200355731
2020-11-12

Sensing and control of position of an electrical discharge

#59
20200355436
2020-11-12

Systems and methods for graphite electrode identification and monitoring

#60
20200355435
2020-11-12

Melting furnace with simultaneously rotatable and movable electrode rod

#61
20200284512
2020-09-10

Apparatus and method for melting metal material

#62
20200224972
2020-07-16

Continuous horizontal-feeding preheating device and preheating enhancement method thereof

#63
20200199696
2020-06-25

FOAMY SLAG CONDITIONER COMPOUND

#64
20200156124
2020-05-21

System and method for an electrode seal assembly

#65
20200080780
2020-03-12

Electric furnace

#66
20200072554
2020-03-05

Process and device for measuring wear of a refractory lining of a receptacle intended to contain molten metal

#67
20200041206
2020-02-06

Feeder device utilized in electric arc furnace, and flue gas and temperature control method

#68
20190390908
2019-12-26

Furnace assembly for a metal-making process

#69
20190301802
2019-10-03

Arc furnace bottom construction

#70
20190288133
2019-09-19

ELECTRODES COMPRISING NANOSTRUCTURED CARBON

#71
20190285346
2019-09-19

ELECTRODE SEAL FOR USE IN A METALLURGICAL FURNACE

#72
20190249922
2019-08-15

Auxiliary burner for electric furnace

#73
20190219615
2019-07-18

Sensing and control of position of an electrical discharge

#74
20190191502
2019-06-20

Apparatus and method to electrically power an electric arc furnace

#75
20190186834
2019-06-20

Leak free current collector assemblage for metallurgical vessel and methods of manufacture

#76
20190170443
2019-06-06

Circular Electric Furnace, and Electrode Arrangement Structure Thereof

#77
20190063838
2019-02-28

Steelmaking and ironmaking scrap segregation and packaging system and method thereof

#78
20190024980
2019-01-24

DUCT SYSTEM WITH INTEGRATED WORKING PLATFORMS

#79
20190017745
2019-01-17

Systems and Methods for Preheating Metal-Containing Pellets

#80
20180363984
2018-12-20

Cassette design drop out box, combustion chamber, duct and electric arc furnace upper shell system

#81
20180340734
2018-11-29

ELECTRIC ARC FURNACE AND METHOD OF OPERATING SAME

#82
20180306511
2018-10-25

COMBUSTION CAN

#83
20180242411
2018-08-23

Flicker control for electric arc furnace

#84
20180216888
2018-08-02

Top loading roof for electric arc, metallurgical or refining furnaces and system thereof

#85
20180120029
2018-05-03

Systems and methods for controlling a vacuum arc remelting furnace based on power input

#86
20180067201
2018-03-08

Method and apparatus for measuring the length of an electrode in an electric arc furnace

#87
20180038655
2018-02-08

Adjustable heat exchange apparatus and method of use

#88
20180031324
2018-02-01

ELECTRODE SEAL FOR USE IN A METALLURGICAL FURNACE

#89
20170328655
2017-11-16

Self-cleaning heat exchange assembly

#90
20170208654
2017-07-20

Power supply for a non-linear load with multilevel matrix converters

#91
20170182530
2017-06-29

System and method for an electrode seal assembly

#92
20170034878
2017-02-02

Apparatus and method to electrically power an electric arc furnace

#93
20170030646
2017-02-02

Metallurgical furnace

#94
20160376673
2016-12-29

Asbestos processing

#95
20160333430
2016-11-17

Method for making steel in an electric arc furnace and electric arc furnace

#96
20160280608
2016-09-29

System, method and apparatus for plasma arc welding ceramics and sapphire

#97
20160258682
2016-09-08

Measurement of electrical variables on a DC furnace

#98
20160250682
2016-09-01

Metal forming apparatus

#99
20160238320
2016-08-18

Injector device for blowing oxygen-rich gases on or in, in a metallurgical unit or melting vessel, and electric arc furnace

#100
20160198590
2016-07-07

Arrangement for cooling channels in an electrode system

#101
20160198531
2016-07-07

Pressure ring assembly for contact shoes in an electrode system

#102
20160153714
2016-06-02

METHOD FOR OPERATING AN ELECTRIC ARC FURNACE AND ELECTRIC ARC FURNACE

#103
20160131428
2016-05-12

Method for detection of the loss of an electric arc furnace measurement reference

#104
20160123669
2016-05-05

Method for tapping a steel making furnace

#105
20160123667
2016-05-05

Electric arc furnace

#106
20160123666
2016-05-05

Melting furnace

#107
20160123665
2016-05-05

Method of operating electric arc furnace

#108
20160123664
2016-05-05

Method of operating electric arc furnace

#109
20160116214
2016-04-28

MULTILAYER COOLING PANEL AND ELECTRIC ARC FURNACE

#110
20160113073
2016-04-21

Re-Melting Furnace and Universal Joint, in Particular for the Electrode Rod Mounting of a Re-Melting Furnace

#111
20160076114
2016-03-17

Method for melting metal material in a melting plant and relative melting plant

#112
20160027934
2016-01-28

Electrodes comprising nanostructured carbon

#113
20160003542
2016-01-07

AUTOMATIC FEEDING APPARATUS FOR ELECTRIC ARC FURNACE

#114
20150369540
2015-12-24

Contact plate for an electrode of an electro-metallurgical furnace and method for producing such a plate

#115
20150344983
2015-12-03

Fixed-type electric furnace and molten steel production method

#116
20150308747
2015-10-29

Apparatus to control the total energy flux into the top ingot surface during vacuum arc remelting processes

#117
20150292801
2015-10-15

Burner and/or injector panel apparatus, methods of installation and use of the same in a metal-melting furnace, and metal-melting furnace including the same

#118
20150267271
2015-09-24

Method and device for supplying energy into a scrap metal pile in an electric arc furnace

#119
20150226484
2015-08-13

Flicker reduction in electric arc furnaces by means of flicker prediction from the state determination in the initial phase of the smelting process

#120
20150176907
2015-06-25

Electrode seal for use in a metallurgical furnace

#121
20150176900
2015-06-25

HYBRID OXY-COAL BURNER FOR EAF STEELMAKING

#122
20150173131
2015-06-18

Electrode clamping device

#123
20150139267
2015-05-21

DEVICE AND METHOD TO CONTROL THE CHARGE IN ELECTRIC ARC FURNACES

#124
20150107797
2015-04-23

Flexible minimum energy utilization electric arc furnace system and processes for making steel products

#125
20150103860
2015-04-16

Inductively coupled plasma arc device

#126
20150049780
2015-02-19

Method for operating an arc furnace and smelting system having an arc furnace operated according to the method

#127
20140355642
2014-12-04

ELECTRIC ARC FURNACE AND METHOD OF OPERATING SAME

#128
20140312540
2014-10-23

Apparatus and method for positioning lances of electric arc furnace, electric arc furnace comprising such apparatus

#129
20140305261
2014-10-16

Method and a control system for controlling a melting and refining process

#130
20140290026
2014-10-02

Method of manufacturing a slag discharge door

#131
20140209267
2014-07-31

Arc melting and tilt casting apparatus

#132
20140185645
2014-07-03

Method for operating an electric arc furnace and melting plant having an electric arc furnace operated according to said method

#133
20140175715
2014-06-26

Method and arrangement for vortex reduction in a metal making process

#134
20140029643
2014-01-30

Roof for electric furnace

#135
20130322486
2013-12-05

APPARATUS AND METHOD FOR SUPPLYING HEAT TO A METAL MELT

#136
20130322485
2013-12-05

BURNER INSERT FOR AN ARC FURNACE

#137
20130250996
2013-09-26

Slag discharge door device for an electric furnace

#138
20130208755
2013-08-15

Lift and pivot device for a cover of a furnace and furnace system and method for charging and servicing such a furnace system

#139
20130195138
2013-08-01

HEAT EXCHANGER FOR THE RAPID COOLING OF FLUE GAS OF IRONWORK PLANTS, APPARATUS FOR THE TREATMENT OF FLUE GAS OF IRONWORK PLANTS COMPRISING SUCH A HEAT EXCHANGER AND RELATIVE TREATMENT METHOD

#140
20130110422
2013-05-02

Fault detector for operating process of electric arc furnace and method thereof

#141
20130106033
2013-05-02

Continuous feeding system to a smelting furnace of pre-heated metal material, in continuous, potentiated and combined form

#142
20130032978
2013-02-07

Burner Gland For An Electric Arc Furnace

#143
20130004908
2013-01-03

METHOD FOR PRODUCING SILICON AND JIG

#144
20120297925
2012-11-29

Electric furnace for producing molten metal having material recycling capability

#145
20120224601
2012-09-06

BURNER AND/OR INJECTOR PANEL APPARATUS, METHODS OF INSTALLATION AND USE OF THE SAME IN A METAL-MELTING FURNACE, AND METAL-MELTING FURNACE INCLUDING THE SAME

#146
20120200013
2012-08-09

Apparatus for manufacturing molten metal

#147
20120140788
2012-06-07

Electrode holder assembly and furnace comprising same

#148
20120140786
2012-06-07

Method and furnace for melting steel scrap

#149
20120134384
2012-05-31

Electric arc furnace

#150
20120106588
2012-05-03

Pool power-based apparatus to control vacuum arc remelting processes

#151
20120104668
2012-05-03

Continuous scrap supply into an electric arc furnace (EAF)

#152
20120097648
2012-04-26

Inductively coupled plasma arc device

#153
20120008661
2012-01-12

APPARATUS FOR MEASURING THE POSITION OF THE ELECTRODES IN AN ELECTRIC FURNACE

#154
20120006156
2012-01-12

Steel production facility

#155
20110272866
2011-11-10

Measurement of charge bank level in a metallurgical furnace

#156
20110272865
2011-11-10

Measurement of charge bank level in a metallurgical furnace

#157
20110243179
2011-10-06

Roof system for electric arc furnace and method for manufacturing the same

#158
20110203413
2011-08-25

Process and equipment for the treatment of loads or residues of non-ferrous metals and their alloys

#159
20110203412
2011-08-25

Method and furnace for melting steel scrap

#160
20110126672
2011-06-02

Method and device for the continuous production of steel using metal charge material

#161
20110038391
2011-02-17

Arc metallurgic furnace slagging door

#162
20100319488
2010-12-23

Continuous production of metallic titanium and titanium-based alloys

#163
20100175506
2010-07-15

TOUGHENED GRAPHITE ELECTRODES FOR ELECTRIC ARC FURNACES

#164
20100162850
2010-07-01

Carbothermic aluminum production apparatus, systems and methods

#165
20100044931
2010-02-25

METALLURGICAL VESSEL, IN PARTICULAR ARC FURNACE

#166
20090274190
2009-11-05

MELTING FURNACE, IN PARTICULAR ELECTRIC ARC FURNACE

#167
20090256292
2009-10-15

Adjustable feed chute and associated method of feeding and melting

#168
20090249919
2009-10-08

Method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal

#169
20090211398
2009-08-27

Process and arrangement for extracting a metal from slag a containing said metal

#170
20090178511
2009-07-16

Continuous production of metallic titanium and titanium-based alloys

#171
20090139371
2009-06-04

Carbothermic aluminum production apparatus, systems and methods

#172
20090010299
2009-01-08

Apparatus for Adjusting an Electrode for a Metallurgical Furnace

#173
20080296006
2008-12-04

ADJUSTABLE HEAT EXCHANGE APPARATUS AND METHOD OF USE

#174
20080202287
2008-08-28

Process and equipment for the treatment of loads or residues of non-ferrous metals and their alloys

#175
20080198894
2008-08-21

Method For Regulating the Melting Process in an Electric-Arc Furnace

#176
20080101432
2008-05-01

Furnace installation and method for melting down metallic or metal-containing charge materials

#177
20080035320
2008-02-14

Heat exchanger system used in steel making

#178
20070163387
2007-07-19

Method and apparatus for preheating and feeding material

#179
20070133651
2007-06-14

Method for controlling foaming of slag in an electric arc furnace

#180
20070101821
2007-05-10

Method for pre-heating, transforming and melting a metal charge and relative plant

#181
20070006989
2007-01-11

Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes

#182
20060272447
2006-12-07

Continuous steel production and apparatus

#183
20060193364
2006-08-31

Graphite electrode for steelmaking

#184
20050155457
2005-07-21

Method and device for the continuous production of steel using metal charge material

#185
20050145064
2005-07-07

Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes

#186
20050041719
2005-02-24

Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace

#187
20050012252
2005-01-20

Cold hearth and skull for refining metals which seal together to prevent overflow of molten metal therebetween

#188
16808051
2023-06-13

Method for determining electrode consumption with machine vision

#189
16433367
2020-04-21

System and method for heating materials