ClassID:

118848

C21C5/52 - 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

Sub-classes:
Recent Application in this class:
#1
20260131376
2026-05-14

LOW-SULFUR GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#2
20260117333
2026-04-30

METHOD FOR MANUFACTURING STEEL

#3
20260054312
2026-02-26

TREATING COOLING WATER IN IRON PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#4
20260048434
2026-02-19

LOW-CARBON GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#5
20260043613
2026-02-12

SLAG DISCHARGE AMOUNT ESTIMATION METHOD

#6
20260043120
2026-02-12

CARBURIZER AND CARBURIZATION METHOD USING THE SAME

#7
20260034581
2026-02-05

USE OF RESIDUAL IRON WITHIN GRANULATED METALLIC UNIT PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#8
20260001124
2026-01-01

CONTINUOUS GRANULATED METALLIC UNITS PRODUCTION, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#9
20250353076
2025-11-20

USE OF A BASIC OXYGEN FURNACE TO PRODUCE GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#10
20250297336
2025-09-25

Iron Containing Pellets

#11
20250290172
2025-09-18

HOT ROLLED STEEL SHEET, PART FOR VEHICLE, AND METHOD FOR MANUFACTURING SAME

#12
20250277157
2025-09-04

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#13
20250257278
2025-08-14

METHODS AND APPARATUS FOR ENHANCING THE ENERGY CONTENT OF CARBONACEOUS MATERIALS FROM PYROLYSIS

#14
20250257277
2025-08-14

METHODS AND APPARATUS FOR ENHANCING THE ENERGY CONTENT OF CARBONACEOUS MATERIALS FROM PYROLYSIS

#15
20250188555
2025-06-12

DEGASSING METHOD FOR MANUFACTURING STEEL

#16
20250115971
2025-04-10

SOLID OXIDE ELECTROLYZER CELL (SOEC) SYSTEM INTEGRATION WITH DIRECT IRON REDUCTION

#17
20250084496
2025-03-13

PROCESSING GRANULATED METALLIC UNITS WITHIN ELECTRIC ARC FURNACES, AND ASSOCIATED SYSTEMS AND METHODS

#18
20250083980
2025-03-13

TREATING COOLING WATER IN IRON PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#19
20250083232
2025-03-13

CONTINUOUS GRANULATED METALLIC UNITS PRODUCTION, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#20
20250083231
2025-03-13

USE OF RESIDUAL IRON WITHIN GRANULATED METALLIC UNIT PRODUCTION FACILITIES, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#21
20250083230
2025-03-13

USE OF A BASIC OXYGEN FURNACE TO PRODUCE GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#22
20250083224
2025-03-13

LOW-CARBON GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#23
20250083223
2025-03-13

LOW-SULFUR GRANULATED METALLIC UNITS, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#24
20250075141
2025-03-06

PROCESS FOR PRODUCING HIGH-CARBON BIOGENIC REAGENTS

#25
20250043372
2025-02-06

DEGASSING METHOD FOR MANUFACTURING ULTRA-LOW CARBON, NITROGEN, SULFUR STEEL

#26
20240401161
2024-12-05

Method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma

#27
20240343985
2024-10-17

SYSTEMS AND APPARATUS FOR PRODUCTION OF HIGH-CARBON BIOGENIC REAGENTS

#28
20240327938
2024-10-03

METHOD FOR IF-INTERSTITIAL FREE STEEL PRODUCTION USING SCRAP IN ARC FURNACE FACILITIES

#29
20240324077
2024-09-26

POWER SUPPLY DEVICE FOR METALLURGICAL EQUIPMENT

#30
20240271052
2024-08-15

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#31
20240263095
2024-08-08

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#32
20240255359
2024-08-01

TEMPERATURE SENSORS

#33
20240229171
2024-07-11

Manufacturing method of a steel product

#34
20240210115
2024-06-27

STEEL MAKING PLANT WITH ELECTRIC ARC FURNACE

#35
20240167112
2024-05-23

METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL

#36
20240158876
2024-05-16

METHOD FOR EVALUATING ENERGY EFFICIENCY OF ELECTRIC ARC FURNACE STEELMAKING

#37
20240158710
2024-05-16

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#38
20240150860
2024-05-09

PROCESS FOR SMELTING HIGH-SPEED STEEL BY USING INTERMEDIATE FREQUENCY FURNACE-LF FURNACE-VD

#39
20240132981
2024-04-25

Manufacturing method of a steel product

#40
20240132795
2024-04-25

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#41
20240093328
2024-03-21

Iron Containing Pellets

#42
20240093320
2024-03-21

METHOD FOR PRODUCING MOLTEN IRON USING ELECTRIC FURNACE PROVIDED WITH VIDEO DEVICE

#43
20240035110
2024-02-01

Method for manufacturing a low-carbon nitrogen-containing austenitic stainless steel bar

#44
20230349767
2023-11-02

DEVICE AND SYSTEM FOR MEASURING A TEMPERATURE OF A MOLTEN METAL

#45
20230349015
2023-11-02

CO-PRODUCTION OF HYDROGEN, CARBON, ELECTRICITY, AND STEEL WITH CARBON DIOXIDE CAPTURE

#46
20230323492
2023-10-12

Degassing method for manufacturing steel

#47
20230303939
2023-09-28

Process for producing high-carbon biogenic reagents

#48
20230265534
2023-08-24

Device and method for filling a tap hole of an electric arc furnace with refractory filling material

#49
20230159840
2023-05-25

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#50
20230093078
2023-03-23

Degassing method for manufacturing ultra-low carbon, nitrogen, sulfur steel

#51
20230092078
2023-03-23

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#52
20230015434
2023-01-19

Coaxial dual supersonic speed oxygen flow coherent oxygen lance

#53
20220364792
2022-11-17

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

#54
20220340994
2022-10-27

HIGH-STRENGTH THIN-GAUGE CHECKERED STEEL PLATE/STRIP AND MANUFACTURING METHOD THEREFOR

#55
20220315852
2022-10-06

Systems and apparatus for production of high-carbon biogenic reagents

#56
20220169936
2022-06-02

Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis

#57
20210396602
2021-12-23

Device and method for measuring a temperature of a molten metal

#58
20210395632
2021-12-23

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#59
20210395631
2021-12-23

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#60
20210395630
2021-12-23

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#61
20210388280
2021-12-16

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#62
20210355403
2021-11-18

High-carbon biogenic reagents and uses thereof

#63
20210355402
2021-11-18

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#64
20210355401
2021-11-18

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#65
20210355400
2021-11-18

High-carbon biogenic reagents and uses thereof

#66
20210355399
2021-11-18

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#67
20210355398
2021-11-18

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#68
20210355397
2021-11-18

High-carbon biogenic reagents and uses thereof

#69
20210355396
2021-11-18

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#70
20210348847
2021-11-11

Gas injection system, furnace provided with such a system and use thereof

#71
20210348076
2021-11-11

HIGH-CARBON BIOGENIC REAGENTS AND USES THEREOF

#72
20210292671
2021-09-23

Systems and apparatus for production of high-carbon biogenic reagents

#73
20210261877
2021-08-26

High-carbon biogenic reagents and uses thereof

#74
20210214632
2021-07-15

Process for producing high-carbon biogenic reagents

#75
20210190603
2021-06-24

Temperature sensors

#76
20210176835
2021-06-10

Spray cooling furnace electrodes with a cooling liquid that contains surfactants

#77
20200354811
2020-11-12

Processing method

#78
20200299599
2020-09-24

Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis

#79
20200165692
2020-05-28

METHOD FOR OPERATING MELTING/REFINING FURNACE AND MELTING-REFINING FURNACE

#80
20190284652
2019-09-19

Melting and refining furnace for cold iron source and method of operating melting and refining furnace

#81
20190194561
2019-06-27

Process for producing high-carbon biogenic reagents

#82
20190169518
2019-06-06

Systems and apparatus for production of high-carbon biogenic reagents

#83
20180363984
2018-12-20

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

#84
20180306511
2018-10-25

COMBUSTION CAN

#85
20180222803
2018-08-09

Methods for producing polygranular graphite bodies

#86
20180202012
2018-07-19

METHOD OF MAKING STEEL USING A SINGLE INSTALLATION, AND INSTALLATION

#87
20180127672
2018-05-10

Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis

#88
20170321139
2017-11-09

High-carbon biogenic reagents and uses thereof

#89
20170223783
2017-08-03

HEATING PROCESS MANAGEMENT WITH FURNACE VOLUME ESTIMATION

#90
20170183748
2017-06-29

METHOD AND DEVICE FOR PROCESSING IRON SILICATE ROCK

#91
20170130284
2017-05-11

Products and processes for producing steel alloys using an electric arc furnace

#92
20170096728
2017-04-06

Production method of maraging steel

#93
20170037334
2017-02-09

Systems and apparatus for production of high-carbon biogenic reagents

#94
20170037333
2017-02-09

Process for producing high-carbon biogenic reagents

#95
20160208358
2016-07-21

NON QUENCHED AND TEMPERED STEEL AND MANUFACTURING PROCESS THEREOF

#96
20160138868
2016-05-19

Metallurgical apparatus

#97
20160105932
2016-04-14

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

#98
20160076114
2016-03-17

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

#99
20150344983
2015-12-03

Fixed-type electric furnace and molten steel production method

#100
20150344799
2015-12-03

Composite briquette for steelmaking or ironmaking furnace charge

#101
20150330708
2015-11-19

FURNACE CONTROL FOR MANUFACTURING STEEL USING SLAG HEIGHT MEASUREMENT AND OFF-GAS ANALYSIS SYSTEMS

#102
20150308746
2015-10-29

Apparatus for conveying and pre-heating a metal charge for a melting plant and connected method

#103
20150292051
2015-10-15

METHOD FOR REUSING IRON-CONTAINING BY-PRODUCT AND APPARATUS THEREFOR

#104
20150137432
2015-05-21

Refractory delta cooling system

#105
20150075326
2015-03-19

High-carbon biogenic reagents and uses thereof

#106
20140312540
2014-10-23

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

#107
20140110240
2014-04-24

Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysis

#108
20140101992
2014-04-17

Systems and apparatus for production of high-carbon biogenic reagents

#109
20130269483
2013-10-17

Apparatus and method for electromagnetic stirring in an electrical arc furnace

#110
20130098202
2013-04-25

PROCESS FOR PRODUCING MOLTEN STEEL USING GRANULAR METALLIC IRON

#111
20120325054
2012-12-27

Method of alloying various grades of steel with manganese oxides

#112
20120298325
2012-11-29

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

#113
20120285080
2012-11-15

High-carbon biogenic reagents and uses thereof

#114
20120193062
2012-08-02

METALLURGICAL COMPLEX

#115
20110113988
2011-05-19

Process for manufacturing cement clinker in a plant, and cement clinker manufacturing plant as such

#116
20090165599
2009-07-02

Method for recycling steelmaking dust

#117
20090039572
2009-02-12

Microwave iron-making furnace

#118
20080041189
2008-02-21

Process for improving energy supply to a scrap bulk

#119
20060119019
2006-06-08

Gas flushing device for metallurgical melting pots

#120
16808051
2023-06-13

Method for determining electrode consumption with machine vision