ClassID:

118874

C21C7/0025 - CPC Classification

Classification description:

Treating molten ferrous alloys, e.g. steel, not covered by groups  -  Adding carbon material

Sub-classes:
Recent Application in this class:
#1
20260035759
2026-02-05

METHOD FOR DENITRIFYING MOLTEN STEEL

#2
20260015682
2026-01-15

A method for manufacturing pig iron in an electrical smelting furnace and associated smelting furnace

#3
20250388985
2025-12-25

A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace

#4
20250327143
2025-10-23

A system and method for bottom electrode compound bottom blowing of multi-media of DC electric arc furnace

#5
20250313909
2025-10-09

RECARBURIZER AND METHOD OF PRODUCING SAME

#6
20250188554
2025-06-12

SYSTEMS AND METHODS FOR SELF-REDUCTION OF IRON ORE

#7
20250171866
2025-05-29

Molten Metal Reactors and Processes

#8
20250137081
2025-05-01

METHOD FOR CONTROLLING BRITTLE INCLUSIONS IN CORD STEEL

#9
20250083218
2025-03-13

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

#10
20240344156
2024-10-17

METALLURGICAL FURNACE WITH CARBON INJECTING LANCE

#11
20240279760
2024-08-22

METHOD FOR FORMING A FOAMY SLAG IN AN ELECTRIC ARC FURNACE

#12
20240229176
2024-07-11

Systems and methods for self-reduction of iron ore

#13
20240191316
2024-06-13

Pyrometallurgical Method for Recycling Shredded Material of Waste from the Production of New and Defective or End-of-Life Batteries for Electric Vehicles or Portable Li-Ion Batteries

#14
20240158877
2024-05-16

PRODUCTS COMPRISING CHAR AND CARBON, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODS

#15
20240002976
2024-01-04

METHOD FOR MELTING FERROUS METALS, NON-FERROUS METALS, MACHINING WASTE AND SCRAP AND STEEL

#16
20230339006
2023-10-26

High performance alloy for corrosion resistance

#17
20230304110
2023-09-28

METHOD FOR PRODUCING CHROMIUM-CONTAINING MOLTEN STEEL

#18
20220389529
2022-12-08

DIRECT CURRENT ELECTRIC ARC FURNACE

#19
20220297172
2022-09-22

High performance alloy for corrosion resistance

#20
20220195546
2022-06-23

Method for producing chromium-containing molten iron

#21
20220195545
2022-06-23

METHOD FOR PRODUCING CHROMIUM-CONTAINING MOLTEN IRON

#22
20210214813
2021-07-15

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

#23
20190048430
2019-02-14

Clean and rapid smelting method in an electric arc furnace with full scrap steel

#24
20180371562
2018-12-27

METHOD FOR PRODUCTION OF IRON-SILICON-ALUMINUM ALLOYS AND THEIR USE

#25
20180371560
2018-12-27

Method and system for producing high-carbon DRI using syngas

#26
20180363077
2018-12-20

Production method for smelting clean steel from full-scrap steel using duplex electric arc furnaces

#27
20180305778
2018-10-25

METHOD FOR MAKING STEEL IN AN ELECTRIC ARC FURNACE

#28
20180245851
2018-08-30

Method and arrangement for monitoring characteristics of a furnace process in a furnace space and process monitoring unit

#29
20180187276
2018-07-05

Slag Conditioner

#30
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

#31
20170247772
2017-08-31

Composite Particle For Steel Making and Ore Refining

#32
20170233840
2017-08-17

Solid agglomerate of fine metal particles comprising a liquid oily lubricant and method for making same

#33
20170204483
2017-07-20

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

#34
20170038145
2017-02-09

HIGH TEMPERATURE ALLOY PARTICLE DOSING DEVICE

#35
20170036913
2017-02-09

Methods for treating an offgas containing carbon oxides

#36
20160312343
2016-10-27

Method for producing manganese containing ferroalloy

#37
20160107226
2016-04-21

Method of continuous casting

#38
20160047008
2016-02-18

Inoculant with surface particles

#39
20150344989
2015-12-03

Composite briquette for steelmaking or ironmaking furnace charge

#40
20150176900
2015-06-25

HYBRID OXY-COAL BURNER FOR EAF STEELMAKING

#41
20150059527
2015-03-05

Methods for treating an offgas containing carbon oxides

#42
20120301383
2012-11-29

Composition of matter tailoring: system I

#43
20120234649
2012-09-20

Device and method for feeding metal material into a melting plant

#44
20110256401
2011-10-20

Process for producing carbon nanotubes and carbon nanotubes produced thereby

#45
20110197713
2011-08-18

RECARBURISATION METHOD

#46
20110155821
2011-06-30

PEARLITE RAIL HAVING SUPERIOR ABRASION RESISTANCE AND EXCELLENT TOUGHNESS

#47
20100326237
2010-12-30

Composition of matter tailoring: system I

#48
20100229685
2010-09-16

Process for producing molten iron

#49
20100180723
2010-07-22

Method for manufacturing molten iron

#50
20090255375
2009-10-15

Method for the production of a foamed slag in a metal bath

#51
20080156146
2008-07-03

Lime-based additive for steel smelting and the preparation method thereof

#52
20070227307
2007-10-04

Method for reducing Cr in metallurgical slags containing Cr

#53
20070209476
2007-09-13

Treatment of base metal smelter slag

#54
20070051200
2007-03-08

Composite briquettes for electric furnace charge, and in their method of use

#55
20060243583
2006-11-02

High pressure dry coal slurry extrusion pump

#56
20060145128
2006-07-06

Composition of matter tailoring: system I

#57
20060102881
2006-05-18

Composition of matter tailoring: system I

#58
20050064190
2005-03-24

Composition of matter tailoring: system I