ClassID:

118850

C21C5/5211 - CPC Classification

Classification description:

Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel; Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace

Sub-classes:
Recent Application in this class:
#1
20250271216
2025-08-28

METALLURGICAL PLANT AND METHOD

#2
20240284566
2024-08-22

OPERATING METHOD FOR AN ELECTRIC ARC FURNACE

#3
20230339006
2023-10-26

High performance alloy for corrosion resistance

#4
20230323491
2023-10-12

PROCESS FOR PRODUCING RAW STEEL AND AGGREGATE FOR PRODUCTION THEREOF

#5
20220297172
2022-09-22

High performance alloy for corrosion resistance

#6
20220154300
2022-05-19

Sensing and control of position of an electrical discharge

#7
20210395845
2021-12-23

Estimation of arc location in three dimensions

#8
20210214812
2021-07-15

Method and apparatus for the production of cast iron, cast iron produced according to said method

#9
20200355731
2020-11-12

Sensing and control of position of an electrical discharge

#10
20200340085
2020-10-29

MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION METHOD, HOLDING FURNACE, AND MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION EQUIPMENT USING HOLDING FURNACE

#11
20200241078
2020-07-30

Estimation of arc location in three dimensions

#12
20200064071
2020-02-27

Electric furnace

#13
20190301802
2019-10-03

Arc furnace bottom construction

#14
20190288133
2019-09-19

ELECTRODES COMPRISING NANOSTRUCTURED CARBON

#15
20190219615
2019-07-18

Sensing and control of position of an electrical discharge

#16
20190161839
2019-05-30

Rail

#17
20180274047
2018-09-27

Method and apparatus for the production of cast iron, cast iron produced according to said method

#18
20180195141
2018-07-12

ELECTRIC ARC FURNACE WITH AN ANGLED ECCENTRIC BOTTOM TAP-HOLE AND A TAPPING PROCESS USING THE ELECTRIC ARC FURNACE

#19
20180187276
2018-07-05

Slag Conditioner

#20
20170261263
2017-09-14

TAP ON A METALLURGICAL VESSEL, IN PARTICULAR ON AN ELECTRIC ARC FURNACE

#21
20170204483
2017-07-20

Methods for utilizing olefin coke in a steel making process and products made therefrom

#22
20160312343
2016-10-27

Method for producing manganese containing ferroalloy

#23
20160105932
2016-04-14

Method and apparatus for dynamic selection of electric arc-furnace control set-points

#24
20160053350
2016-02-25

MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION METHOD, HOLDING FURNACE, AND MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION EQUIPMENT USING HOLDING FURNACE

#25
20160027934
2016-01-28

Electrodes comprising nanostructured carbon

#26
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

#27
20150107797
2015-04-23

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

#28
20150096811
2015-04-09

Method and device for determining the consumption of electrode material during the operation of an electric furnace

#29
20150049780
2015-02-19

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

#30
20150023833
2015-01-22

Manufacturing method for electric furnace steel for carburizing without Mo addition

#31
20150003488
2015-01-01

Control system for a melting process

#32
20140305261
2014-10-16

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

#33
20140291899
2014-10-02

Apparatus for inducing flow in a molten material

#34
20140290026
2014-10-02

Method of manufacturing a slag discharge door

#35
20140130636
2014-05-15

Method and a control system for controlling a melting process

#36
20140035209
2014-02-06

Ladle metallurgy furnace having improved roof

#37
20140016663
2014-01-16

Furnace damper control system

#38
20130301669
2013-11-14

Industrial furnace cover

#39
20120320942
2012-12-20

METHOD FOR OPERATING AN ARC FURNACE, CONTROL AND/OR REGULATING DEVICE FOR AN ARC FURNACE, AND ARC FURNACE

#40
20120213684
2012-08-23

COMBUSTION OF CO AND COMBUSTIBLES IN STEEL FURNACE OFFGASES

#41
20120193844
2012-08-02

Ladle metallurgy furnace having improved roof

#42
20120192678
2012-08-02

Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

#43
20120183010
2012-07-19

Method for controlling a melt process in an arc furnace and signal processing component, program code and data medium for performing said method

#44
20120152057
2012-06-21

ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING THE ELECTRIC ARC MELTING FACILITY

#45
20120138253
2012-06-07

ADVANCED TECHNOLOGY FOR IRON-CHROME ALLOYS PRODUCTION AND RELATED PLANT

#46
20120134384
2012-05-31

Electric arc furnace

#47
20120125595
2012-05-24

EXHAUST DUCT HAVING MODULAR, MULTI ZONE, SPIRALLY ARRAYED COOLING COILS AND METHOD FOR COOLING

#48
20120125152
2012-05-24

ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING ELECTRIC ARC MELTING FACILITY

#49
20110292961
2011-12-01

METHOD AND DEVICE FOR CONTROLLING A CARBON MONOXIDE OUTPUT OF AN ELECTRIC ARC LIGHT OVEN

#50
20110244412
2011-10-06

MELTING FURNACE

#51
20110197713
2011-08-18

RECARBURISATION METHOD

#52
20110126671
2011-06-02

Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

#53
20110094340
2011-04-28

COMBUSTION OF CO AND COMBUSTIBLES IN STEEL FURNACE OFFGASES

#54
20110011211
2011-01-20

Metallurgical process and plant therefor

#55
20110007773
2011-01-13

Method for operating an arc furnace comprising at least one electrode, regulating and/or control device, machine-readable program code, data carrier and arc furnace for carrying out said method

#56
20100332160
2010-12-30

Method for determining a radiation measurement for thermal radiation, arc furnace, a signal processing device programme code and storage medium for carrying out said method

#57
20100327888
2010-12-30

Method for determining the size and shape measure of a solid material in an arc furnace, an arc furnace, a signal processing device and program code and a memory medium

#58
20100315098
2010-12-16

Method for determining at least one state variable of an electric arc furnace, and electric arc furnace

#59
20100208765
2010-08-19

Furnace damper control system and method

#60
20100175506
2010-07-15

TOUGHENED GRAPHITE ELECTRODES FOR ELECTRIC ARC FURNACES

#61
20100154594
2010-06-24

Method of melting a mixture of scrap metal using scrap rubber

#62
20100154592
2010-06-24

Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

#63
20090255374
2009-10-15

Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

#64
20090129428
2009-05-21

COOLING DEVICE FOR USE IN AN ELECTRIC ARC FURNACE

#65
20080314198
2008-12-25

Method of melting a mixture of scrap metal using scrap rubber

#66
20080307926
2008-12-18

Method for Determining the Properties of the Content of an Arc Furnace

#67
20080285615
2008-11-20

Method for Determining at Least One State Variable of an Electric Arc Furnace, and Electric Arc Furnace

#68
20080257105
2008-10-23

Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

#69
20080230966
2008-09-25

SCRAP MELTER AND IMPELLER THEREFORE

#70
20080198894
2008-08-21

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

#71
20080192796
2008-08-14

Method and Device for Operating an Electric-Arc Furnace

#72
20070211780
2007-09-13

Cooling device for use in an electric arc furnace

#73
20070119275
2007-05-31

Method for tapping a steel making furnace

#74
20050229743
2005-10-20

Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

#75
20050046094
2005-03-03

Metallurgical vessel for melting device for liquid metals

#76
20050011309
2005-01-20

Agglomerated quicklime or dolomitic quicklime compositions for electric arc furnace steelmaking