ClassID:

118812

C21C5/28 - 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 the converter

Sub-classes:
Recent Application in this class:
#1
20260043100
2026-02-12

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

#2
20260028687
2026-01-29

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

#3
20260022430
2026-01-22

A method for producing molten pig iron into an electrical smelting unit

#4
20260022429
2026-01-22

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

#5
20260022428
2026-01-22

Method for manufacturing pig iron into an electrical smelting furnace and associated smelting furnace

#6
20260009095
2026-01-08

A method of manufacturing molten pig iron into an electrical smelting unit

#7
20250376746
2025-12-11

ULTRAHIGH HOLE EXPANSION STEEL AND METHOD FOR MANUFACTURING THEREFOR

#8
20250092477
2025-03-20

METHOD FOR OPERATING A STEELWORKS

#9
20240271233
2024-08-15

METHOD FOR REFINING MOLTEN IRON

#10
20240271232
2024-08-15

METHOD FOR PRODUCING STEEL IN AN INTEGRATED METALLURGICAL PLANT

#11
20240254577
2024-08-01

SPHEROIDIZING-ANNEALED STEEL FOR BALL SCREW HAVING HIGH STRENGTH AND RESISTANCE TO LOW TEMPERATURES AND MANUFACTURING METHOD THEREOF

#12
20240068061
2024-02-29

CONVERTER STEELMAKING METHOD

#13
20240011121
2024-01-11

PRODUCTION METHOD FOR NON-ORIENTED SILICON STEEL AND NON-ORIENTED SILICON STEEL

#14
20230304110
2023-09-28

METHOD FOR PRODUCING CHROMIUM-CONTAINING MOLTEN STEEL

#15
20200318209
2020-10-08

METHOD FOR ELUTING CALCIUM FROM STEELMAKING SLAG, AND METHOD FOR COLLECTING CALCIUM FROM STEELMAKING SLAG

#16
20180073962
2018-03-15

Immersion device for slag sample collection

#17
20180051357
2018-02-22

Method for recovering calcium-containing solid component from steelmaking slag and recovered solid component

#18
20170316131
2017-11-02

Method of batching and scheduling for steelmaking production with plant-wide process consideration

#19
20170029919
2017-02-02

A STEEL REBAR AND A PRODUCTION METHOD THEREOF

#20
20150344799
2015-12-03

Composite briquette for steelmaking or ironmaking furnace charge

#21
20130213184
2013-08-22

Process for making low and specified hardenability structural steel

#22
20130180360
2013-07-18

Method of manufacturing iron-based powder

#23
20130019714
2013-01-24

Method for foamed slag generation of a non-corrosive melt in a converter

#24
20120325054
2012-12-27

Method of alloying various grades of steel with manganese oxides

#25
20110197713
2011-08-18

RECARBURISATION METHOD

#26
20110113988
2011-05-19

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

#27
20090193933
2009-08-06

Pre-Processing Materials Using Encapsulation Technologies

#28
20070221012
2007-09-27

Scrap bale for steel making process