ClassID:

118910

C21C2300/08 - CPC Classification

Classification description:

Process aspects Particular sequence of the process steps

Recent Application in this class:
#1
20260117333
2026-04-30

METHOD FOR MANUFACTURING STEEL

#2
20250283187
2025-09-11

ADDITIVE FOR TREATING MOLTEN IRON TO PRODUCE CAST IRON WITH ZERO CONTRACTION AND WITH LONSDALEITE-TYPE SPHEROIDAL GRAPHITE

#3
20240368716
2024-11-07

MOLTEN PIG IRON MANUFACTURING METHOD

#4
20240327939
2024-10-03

SUSTAINABLE STEEL PRODUCTION WITH CO-GENERATION OF HYDROGEN

#5
20240287632
2024-08-29

TREATMENT METHOD OF MOLTEN STEEL AND STEEL PRODUCTION METHOD

#6
20240247329
2024-07-25

Molten steel denitrification method and steel production method

#7
20240229177
2024-07-11

METHOD FOR DEPHOSPHORIZATION OF MOLTEN IRON

#8
20240167112
2024-05-23

METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL

#9
20240068061
2024-02-29

CONVERTER STEELMAKING METHOD

#10
20230332260
2023-10-19

REFINING PROCESS CONTROL DEVICE AND REFINING PROCESS CONTROL METHOD

#11
20230313330
2023-10-05

METHOD FOR MANUFACTURING LOW-PHOSPHORUS MOLTEN STEEL

#12
20220396844
2022-12-15

Molten steel production method

#13
20220243294
2022-08-04

ADDITIVE FOR TREATING MOLTEN IRON TO PRODUCE CAST IRON WITH ZERO CONTRACTION AND WITH LONSDALEITE-TYPE SPHEROIDAL GRAPHITE

#14
20200377977
2020-12-03

METHOD FOR PRODUCING ALLOY STEEL

#15
20190062854
2019-02-28

Manufacture of low carbon steel

#16
20180245174
2018-08-30

Method for homogenizing steel compositions

#17
20170247773
2017-08-31

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

#18
20170175212
2017-06-22

ARGON OXYGEN DECARBURIZATION REFINING METHOD FOR MOLTEN AUSTENITIC STAINLESS STEEL

#19
20170051369
2017-02-23

Method for recycling-processing of dust generated in converter furnace, and method for manufacturing steel

#20
20150107797
2015-04-23

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

#21
20150027656
2015-01-29

Method for preparing low-cost clean steel

#22
20150000470
2015-01-01

Method for preliminary treatment of molten iron

#23
20140271330
2014-09-18

Method for producing spheroidal graphite cast iron and vehicle component using said spheroidal graphite cast iron

#24
20140096643
2014-04-10

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

#25
20130213184
2013-08-22

Process for making low and specified hardenability structural steel

#26
20120180601
2012-07-19

Method of desulfurizing steel

#27
20120175828
2012-07-12

Method and device for producing pig-iron based stainless steel without using a supply of electrical energy

#28
20110227263
2011-09-22

Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation

#29
20110193273
2011-08-11

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

#30
20110174457
2011-07-21

PROCESS FOR OPTIMIZING STEEL FABRICATION

#31
20100276102
2010-11-04

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

#32
20100064856
2010-03-18

PROCESS AND PLANT FOR PRODUCING STEEL

#33
20100024927
2010-02-04

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

#34
20100024600
2010-02-04

Method and device for producing stainless steel without using a supply of electrical energy, based on pig-iron that has been pre-treated in a DDD installation

#35
20100011909
2010-01-21

Method and device for producing pig-iron based stainless steel without using a supply of electrical energy

#36
20070039418
2007-02-22

Method for producing steel ingot