C21C5/00 - CPC Classification Index

ClassID:

118807 ⎘

C21C5/00 - CPC Classification

Classification description:

Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel

Sub-classes:

C21C5/005 » {Manufacture of stainless steel} 35
C21C5/02 » Crucible furnace process 2
C21C5/04 » Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel 5
C21C5/28 » Manufacture of steel in the converter 21
C21C5/52 » Manufacture of steel in electric furnaces 96
C21C5/56 » Manufacture of steel by other methods 43

Recent Application in this class:

20250084495

2025-03-13

CARBON-NEGATIVE METALLURGICAL PRODUCTS

20240294997

2024-09-05

CARBON-NEGATIVE METALLURGICAL PRODUCTS

20230407421

2023-12-21

CARBON-NEGATIVE METALLURGICAL PRODUCTS

20220267869

2022-08-25

CARBON-NEGATIVE METALLURGICAL PRODUCTS

20220259684

2022-08-18

Carbon-negative metallurgical products

20170102184

2017-04-13

Metallurgical container

20170016673

2017-01-19

Method for operating a shaft furnace

20160363374

2016-12-15

Immersion device for molten metal and steelmaking method

20150153106

2015-06-04

Apparatus and method to feed and preheat a metal charge to a melting furnace

#10

20150007696

2015-01-08

Method of recovering Fe from steel-making slag

#11

20140318319

2014-10-30

Starting a smelting process

#12

20140060251

2014-03-06

PROCESS OF THE PRODUCTION AND REFINING OF LOW-CARBON DRI (DIRECT REDUCED IRON)

#13

20130167688

2013-07-04

METHOD OF MAKING LOW CARBON STEEL USING FERROUS OXIDE AND MINERAL CARBONATES