ClassID:

118882

C21C7/0075 - CPC Classification

Classification description:

Treating molten ferrous alloys, e.g. steel, not covered by groups  -  Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle

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
20260103769
2026-04-16

METHOD FOR MANUFACTURING HIGH-CHROMIUM (CR) MOLTEN STEEL, METHOD FOR MANUFACTURING CAST PIECE, AND METHOD FOR MANUFACTURING PRESS ROLL

#4
20260054312
2026-02-26

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

#5
20260048434
2026-02-19

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

#6
20260035775
2026-02-05

METHOD FOR PRODUCING AND PREPARING STEEL BAR FOR AUTOMOTIVE BUSHINGS BY MEANS OF ECOLOGICAL AND ECONOMICAL ARC FURNACE

#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
20250263808
2025-08-21

RUHRSTAHL-HERAEUS SNORKEL DESIGN

#11
20250188556
2025-06-12

METHOD FOR SLAG MODIFICATION DURING END PERIOD OF CASTING IN STEEL LADLE HAVING COVER

#12
20250188555
2025-06-12

DEGASSING METHOD FOR MANUFACTURING STEEL

#13
20250179598
2025-06-05

METHOD FOR RECYCLING CHROMIUM OXIDE AND FORMING CHROMIUM-ALLOY STEEL

#14
20250163555
2025-05-22

STEEL PLATE FOR HIGH HEAT INPUT WELDING AND MANUFACTURING METHOD THEREFOR

#15
20250154617
2025-05-15

STEEL PLATE FOR ADVANCED NUCLEAR POWER UNIT REACTOR CORE SHELL CYLINDER AND MANUFACTURING METHOD FOR STEEL PLATE

#16
20250137081
2025-05-01

METHOD FOR CONTROLLING BRITTLE INCLUSIONS IN CORD STEEL

#17
20250092480
2025-03-20

HOT-ROLLED, LOW-TEMPERATURE-RESISTANT, H-SHAPED STEEL WITH GRADE OF YIELD STRENGTH OF 420 MPA AND PREPARATION METHOD THEREFOR

#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
20250083218
2025-03-13

Process for producing clean steel products with a low nitrogen content using an electric arc furnace and a degassing system

#25
20250043372
2025-02-06

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

#26
20240279784
2024-08-22

METHOD FOR PRODUCING HYPEREUTECTOID STEEL RAIL RESISTANT TO CONTACT FATIGUE

#27
20230323492
2023-10-12

Degassing method for manufacturing steel

#28
20230142051
2023-05-11

DECARBURIZATION REFINING METHOD FOR MOLTEN STEEL UNDER REDUCED PRESSURE

#29
20230093078
2023-03-23

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

#30
20220282346
2022-09-08

Cored wire for out-of-furnace treatment of metallurgical melts

#31
20220228243
2022-07-21

Method for producing high nitrogen steel by duplex melting process of pressurized ladle refining and pressurized electroslag remelting

#32
20220170124
2022-06-02

Method for recycling chromium oxide and forming chromium-alloy steel

#33
20210214813
2021-07-15

Slag discharging method in process of producing ultra-low phosphorus steel and method for producing ultra-low phosphorus steel

#34
20200385830
2020-12-10

Method for dephosphorization of hot metal, and refining agent

#35
20200340085
2020-10-29

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

#36
20200340069
2020-10-29

Cast iron inoculant and method for production of cast iron inoculant

#37
20190309380
2019-10-10

MOLTEN STEEL TREATMENT DEVICE AND MOLTEN STEEL TREATMENT METHOD USING SAME

#38
20190119795
2019-04-25

Method for producing an improved ductile iron alloy with pearlitic matrix

#39
20190062854
2019-02-28

Manufacture of low carbon steel

#40
20180230580
2018-08-16

Stainless steel product

#41
20180202012
2018-07-19

METHOD OF MAKING STEEL USING A SINGLE INSTALLATION, AND INSTALLATION

#42
20180057918
2018-03-01

Cr-Mn-N austenitic heat-resistant steel and a method for manufacturing the same

#43
20170362672
2017-12-21

Multiple chamber material-stirring lance and method

#44
20170275714
2017-09-28

MIXTURE, USE OF THIS MIXTURE, AND METHOD FOR CONDITIONING A SLAG LOCATED ON A METAL MELT IN A METALLURGICAL VESSEL IN IRON AND STEEL METALLURGY

#45
20170247773
2017-08-31

Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method

#46
20170204483
2017-07-20

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

#47
20160369361
2016-12-22

Coaxial material-stirring lance and method of use

#48
20160333431
2016-11-17

USE OF LADLE FURNACE SLAG FROM AL-KILLED STEEL IN SI-KILLED STEELMAKING AS CALCIUM ALUMINATE FLUX

#49
20160186277
2016-06-30

Molten iron refining method and device thereof

#50
20160168655
2016-06-16

Method for manufacturing duplex stainless steel sheet having reduced inclusions

#51
20160151832
2016-06-02

Spring steel with excellent fatigue resistance and method of manufacturing the same

#52
20160115561
2016-04-28

Method and device for treating a metal or a molten metal alloy using an addition agent

#53
20160107226
2016-04-21

Method of continuous casting

#54
20160031008
2016-02-04

Ladle bottom and ladle

#55
20150306662
2015-10-29

Spreading device for bulk material on a circular surface and method for operating the same

#56
20150247213
2015-09-03

Metal recovery method

#57
20150122083
2015-05-07

High cleanliness molten steel production method and refining device

#58
20150107797
2015-04-23

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

#59
20140224069
2014-08-14

Method for the production and the purification of molten calcium aluminate using contaminated aluminum dross residue

#60
20140096648
2014-04-10

Method for controlling A-shaped segregation by purification of liquid steel

#61
20140096643
2014-04-10

Molten steel desulfurization method, molten steel secondary refining method, and molten steel manufacturing method

#62
20130305880
2013-11-21

Grain refiners for steel-manufacturing methods and use

#63
20130213184
2013-08-22

Process for making low and specified hardenability structural steel

#64
20120304820
2012-12-06

Process for Producing a High-Cleanliness Steel

#65
20120298325
2012-11-29

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

#66
20120152060
2012-06-21

TREATMENT LADLE

#67
20110209581
2011-09-01

Method of producing steel for steel pipe excellent in sour-resistance performance

#68
20110197713
2011-08-18

RECARBURISATION METHOD

#69
20110193273
2011-08-11

PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY

#70
20110174457
2011-07-21

PROCESS FOR OPTIMIZING STEEL FABRICATION

#71
20110041653
2011-02-24

Method of manufacturing ultra low carbon ferritic stainless steel

#72
20100307709
2010-12-09

REFINEMENT OF STEEL

#73
20100276102
2010-11-04

Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment

#74
20100071509
2010-03-25

Method of producing steel for steel pipe excellent in sour-resistance performance

#75
20100024927
2010-02-04

PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY

#76
20100024596
2010-02-04

Low cost making of a low carbon, low sulfur, and low nitrogen steel using conventional steelmaking equipment

#77
20090246068
2009-10-01

Refinement of steel

#78
20090211400
2009-08-27

Grain refiners for steel-manufacturing methods and use

#79
20090038439
2009-02-12

PROCESS FOR PRODUCING STEEL FOR HIGH-CARBON STEEL WIRE MATERIAL WITH EXCELLENT DRAWABILITY AND FATIQUE CHARACTERISTICS

#80
20080257110
2008-10-23

Method of producing transformation induced plasticity steels having improved castability

#81
20080257106
2008-10-23

Process for Producing a High-Cleanliness Steel

#82
20080236778
2008-10-02

Wire injection lance nozzle insert

#83
20080182022
2008-07-31

Production of an inert blanket in a furnace

#84
20080105086
2008-05-08

Cored wire injection process in steel melts

#85
20080025865
2008-01-31

Process for producing a high-cleanliness steel

#86
20070278722
2007-12-06

Hoisting mechanism for steel processing ladles in RH degassers

#87
20070045884
2007-03-01

Procedure for the production of a fireproof ceramic product, use of the product and procedure for the change of a melt with the product

#88
20060123949
2006-06-15

Highly ductile steel sheet and method of manufacturing the same

#89
20050223850
2005-10-13

Model-based system for determining process parameters for the ladle refinement of steel

#90
20050023737
2005-02-03

Ladle

#91
18655340
2024-11-19

Method and device for controlling temperature of molten steel during ladle furnace (LF) refining based on interpretable machine learning