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Treating molten ferrous alloys
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CPC
C21C7/00
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Parent Industries
C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21C
PROCESSING OF PIG-IRON
Current Industry
C21C7/00
Treating molten ferrous alloys
Sub Industries
C21C7/0006
Adding metallic additives
C21C7/0025
Adding carbon material
C21C7/0037
by injecting powdered material
C21C7/0043
into the falling stream of molten metal
C21C7/005
using exothermic reaction compositions
C21C7/0056
using cored wires
C21C7/0068
by introducing material into a current of streaming metal
C21C7/0075
Treating in a ladle furnace
C21C7/0081
Treating and handling under pressure
C21C7/0087
Treatment of slags covering the steel bath
C21C7/04
Removing impurities by adding a treating agent
C21C7/06
Deoxidising
C21C7/064
Dephosphorising Desulfurising
C21C7/0645
Agents used for dephosphorising or desulfurising
C21C7/068
Decarburising
C21C7/0685
of stainless steel
C21C7/072
Treatment with gases
C21C7/076
Use of slags or fluxes as treating agents
C21C7/10
Handling in a vacuum
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last 30 patents
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Patent Grant
Degassing method for manufacturing ultra-low carbon, nitrogen, sulf...
Patent number
12,168,808
Issue date
Dec 17, 2024
United States Steel Corporation
Yun Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and device for controlling temperature of molten steel durin...
Patent number
12,146,200
Issue date
Nov 19, 2024
University of Science and Technology Beijing
Qing Liu
C21 - METALLURGY OF IRON
Information
Patent Grant
High performance alloy for corrosion resistance
Patent number
12,138,674
Issue date
Nov 12, 2024
Saudi Arabian Oil Company
Oladele Owoeye
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel material for steel piston
Patent number
12,134,812
Issue date
Nov 5, 2024
Nippon Steel Corporation
Yutaka Neishi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing chromium-containing molten iron
Patent number
12,134,799
Issue date
Nov 5, 2024
Nippon Steel Corporation
Norifumi Asahara
C21 - METALLURGY OF IRON
Information
Patent Grant
Converter bottom blowing system capable of allowing multiple media...
Patent number
12,123,063
Issue date
Oct 22, 2024
University of Science and Technology Beijing
Kai Dong
C21 - METALLURGY OF IRON
Information
Patent Grant
Ultra-clean rare earth steel and occluded foreign substance modific...
Patent number
12,091,733
Issue date
Sep 17, 2024
Institute of Metal Research Chinese Academy of Sciences
Dianzhong Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Nickel-based superalloy steel and preparation method thereof
Patent number
12,084,748
Issue date
Sep 10, 2024
Zhejiang Dalong New Materials Co., Ltd.
Rongxin Yu
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for smelting low-phosphorus high-manganese steel based on re...
Patent number
12,071,681
Issue date
Aug 27, 2024
North China University of Science and Technology
Tao Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing an improved ductile iron alloy with pearlitic...
Patent number
12,065,723
Issue date
Aug 20, 2024
Verdeloong Enterprises Pty. Ltd.
Mathew Lagoon
C21 - METALLURGY OF IRON
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Patent Grant
Method for producing steel
Patent number
12,054,796
Issue date
Aug 6, 2024
Nippon Steel Corporation
Toshiaki Mizoguchi
C21 - METALLURGY OF IRON
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Patent Grant
Method for smelting low nitrogen steel using electric furnace
Patent number
12,018,341
Issue date
Jun 25, 2024
Baoshan Iron & Steel Co., Ltd.
Yingtie Xu
C21 - METALLURGY OF IRON
Information
Patent Grant
Recycling method for manufacturing high speed steel master alloy fr...
Patent number
11,987,867
Issue date
May 21, 2024
T&E INC.
Bae Gyun Kim
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for manufacturing a slag conditioning agent for steel desul...
Patent number
11,932,914
Issue date
Mar 19, 2024
S.A. Lhoist Recherche et Developpement
Eric Perrin
C21 - METALLURGY OF IRON
Information
Patent Grant
Device for trapping hydrogen
Patent number
11,932,920
Issue date
Mar 19, 2024
CONSTELLIUM ISSOIRE
Jocelyn Prigent
C21 - METALLURGY OF IRON
Information
Patent Grant
Directionally solidified high-boron and high-vanadium high-speed st...
Patent number
11,878,344
Issue date
Jan 23, 2024
Xi'an Jiaotong University
Shengqiang Ma
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
High performance alloy for corrosion resistance
Patent number
11,794,228
Issue date
Oct 24, 2023
Saudi Arabian Oil Company
Oladele Owoeye
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Mold flux and casting method using same
Patent number
11,794,238
Issue date
Oct 24, 2023
POSCO Co., Ltd
Jun Yong Park
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for producing high nitrogen steel by duplex melting process...
Patent number
11,732,337
Issue date
Aug 22, 2023
Northeastern University
Huabing Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Slag discharging method in process of producing ultra-low phosphoru...
Patent number
11,718,885
Issue date
Aug 8, 2023
NANYANG HANYE SPECIAL STEEL CO., LTD
Shucheng Zhu
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of making steel by deeply dephosphorization in hot metal tan...
Patent number
11,674,192
Issue date
Jun 13, 2023
University of Science and Technology Beijing
Yanling Zhang
C21 - METALLURGY OF IRON
Information
Patent Grant
Rare-earth microalloyed steel and control method
Patent number
11,655,512
Issue date
May 23, 2023
Institute of Metal Research Chinese Academy of Sciences
Dianzhong Li
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for removing phosphorus from phosphorus-containing substance
Patent number
11,649,514
Issue date
May 16, 2023
JFE Steel Corporation
Kenji Nakase
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for modifying steel slag through acidification and carboniz...
Patent number
11,572,307
Issue date
Feb 7, 2023
SHANDONG UNIVERSITY
Jingcai Chang
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for dephosphorization of hot metal, and refining agent
Patent number
11,542,566
Issue date
Jan 3, 2023
JFE Steel Corporation
Yusuke Fujii
C21 - METALLURGY OF IRON
Information
Patent Grant
Silicon based alloy, method for the production thereof and use of s...
Patent number
11,542,578
Issue date
Jan 3, 2023
Elkem ASA
Amélie Dieudonne
C21 - METALLURGY OF IRON
Information
Patent Grant
Cored wire with particulate material
Patent number
11,525,168
Issue date
Dec 13, 2022
P.C. Campana, Inc.
David L. Campana
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Low-alloy high-strength seamless steel pipe for oil country tubular...
Patent number
11,505,842
Issue date
Nov 22, 2022
JFE Steel Corporation
Mitsuhiro Okatsu
C21 - METALLURGY OF IRON
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Patent Grant
Calcium, aluminum and silicon alloy, as well as a process for the p...
Patent number
11,486,027
Issue date
Nov 1, 2022
BOZEL BRASIL SA
Paulo Von Kruger
C21 - METALLURGY OF IRON
Information
Patent Grant
Calcium, aluminum and silicon alloy, as well as a process for the p...
Patent number
11,486,026
Issue date
Nov 1, 2022
BOZEL BRASIL SA
Paulo Von Kruger
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR CONTROLLING NITROGEN IN STEELMAKING BY SPRAYING HYDROGEN...
Publication number
20240401161
Publication date
Dec 5, 2024
Xuanhua Iron and Steel Group Co., Ltd.
Hongbin WANG
C21 - METALLURGY OF IRON
Information
Patent Application
VACUUM DEGASSING PLANT AND PROCESS FOR THE INERTISATION OF PYROPHOR...
Publication number
20240399272
Publication date
Dec 5, 2024
DANIELI & C. OFFICINE MECCANICHE SPA
Harald KOBLENZER
C21 - METALLURGY OF IRON
Information
Patent Application
ULTRA-HIGH STRENGTH SPRING STEEL AND PREPARATION METHOD THEREOF
Publication number
20240392404
Publication date
Nov 28, 2024
Shandong Jianzhu University
Simon Yisheng Feng
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHOD FOR REFINING MOLTEN IRON
Publication number
20240392400
Publication date
Nov 28, 2024
Industry-Academic Cooperation Foundation, Yonsei University
Gyo Khang PARK
C21 - METALLURGY OF IRON
Information
Patent Application
PRECIPITATION HARDENING MARTENSITIC STAINLESS STEEL HAVING EXCELLEN...
Publication number
20240376561
Publication date
Nov 14, 2024
Nippon Yakin Kogyo Co., Ltd.
Xin JI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ALUMINUM ALLOY DEOXIDIZER WITH CARBON COMPOUNDS
Publication number
20240360527
Publication date
Oct 31, 2024
HF investment Co., LTD.
CHIEN-HAO LEE
C21 - METALLURGY OF IRON
Information
Patent Application
METALLURGICAL FURNACE WITH CARBON INJECTING LANCE
Publication number
20240344156
Publication date
Oct 17, 2024
METIX (PROPRIETARY) LIMITED
Gabriel Jacobus LOTTER
C21 - METALLURGY OF IRON
Information
Patent Application
V-N MICROALLOYED STEEL AND METHOD FOR PRODUCING V-N MICROALLOYED AN...
Publication number
20240327963
Publication date
Oct 3, 2024
LAIWU STEEL YINSHAN SECTION CO., LTD.
Zhongxue WANG
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHOD FOR IF-INTERSTITIAL FREE STEEL PRODUCTION USING SCRAP IN ARC...
Publication number
20240327938
Publication date
Oct 3, 2024
ÇOLAKOGLU METALURJI ANONIM SIRKETI
Murat GUNERDI
C21 - METALLURGY OF IRON
Information
Patent Application
SUSTAINABLE STEEL PRODUCTION WITH CO-GENERATION OF HYDROGEN
Publication number
20240327939
Publication date
Oct 3, 2024
Saudi Arabian Oil Company
Faisal B. Almutairi
C21 - METALLURGY OF IRON
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Patent Application
HEAT RECOVERY ON STEEL SLAG
Publication number
20240309479
Publication date
Sep 19, 2024
JOHN COCKERILL S.A.
Thomas Thoelen
C21 - METALLURGY OF IRON
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Patent Application
A METHOD FOR PROCESSING IRON ORE TO OBTAIN STEEL
Publication number
20240309475
Publication date
Sep 19, 2024
METSO METALS OY
Timo HAIMI
C21 - METALLURGY OF IRON
Information
Patent Application
MOLTEN STEEL REFINING METHOD
Publication number
20240294998
Publication date
Sep 5, 2024
JFE STEEL CORPORATION
Akifumi HARADA
C21 - METALLURGY OF IRON
Information
Patent Application
TREATMENT METHOD OF MOLTEN STEEL AND STEEL PRODUCTION METHOD
Publication number
20240287632
Publication date
Aug 29, 2024
JFE STEEL CORPORATION
Hidemitsu NEGISHI
C21 - METALLURGY OF IRON
Information
Patent Application
MOLTEN STEEL REFINING METHOD
Publication number
20240287633
Publication date
Aug 29, 2024
JFE STEEL CORPORATION
Akifumi HARADA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PREPARING TITANIUM-CONTAINING ULTRA-LOW-CARBON STEEL
Publication number
20240287635
Publication date
Aug 29, 2024
Baoshan Iron & Steel Co., Ltd
Hantao HU
B22 - CASTING POWDER METALLURGY
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Patent Application
METHOD FOR FORMING A FOAMY SLAG IN AN ELECTRIC ARC FURNACE
Publication number
20240279760
Publication date
Aug 22, 2024
PIPEX ENERGY S.R.L.
Luca OREFICI
C21 - METALLURGY OF IRON
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Patent Application
METHOD FOR PRODUCING HYPEREUTECTOID STEEL RAIL RESISTANT TO CONTACT...
Publication number
20240279784
Publication date
Aug 22, 2024
Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.
Jun YUAN
C21 - METALLURGY OF IRON
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Patent Application
METHOD FOR SECONDARILY REFINING MOLTEN STEEL AND METHOD OF PRODUCIN...
Publication number
20240271234
Publication date
Aug 15, 2024
JFE STEEL CORPORATION
Chikashi TADA
C21 - METALLURGY OF IRON
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Patent Application
MOLTEN STEEL DENITRIFICATION METHOD AND STEEL PRODUCTION METHOD
Publication number
20240271235
Publication date
Aug 15, 2024
JFE STEEL CORPORATION
Hidemitsu NEGISHI
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR REFINING MOLTEN IRON
Publication number
20240271233
Publication date
Aug 15, 2024
JFE STEEL CORPORATION
Futoshi OGASAWARA
C21 - METALLURGY OF IRON
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Patent Application
MOLTEN STEEL DENITRIFICATION METHOD, SIMULTANEOUS DENITRIFICATION A...
Publication number
20240263261
Publication date
Aug 8, 2024
JFE STEEL CORPORATION
Hidemitsu NEGISHI
C21 - METALLURGY OF IRON
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Patent Application
Gas atomization of molten steel
Publication number
20240246145
Publication date
Jul 25, 2024
ARCELORMITTAL
Pallava KAUSHIK
B22 - CASTING POWDER METALLURGY
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Patent Application
CONVERTER BOTTOM BLOWING SYSTEM CAPABLE OF ALLOWING MULTIPLE MEDIA...
Publication number
20240247328
Publication date
Jul 25, 2024
UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Kai DONG
C21 - METALLURGY OF IRON
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Patent Application
PROCESS FOR MANUFACTURING A SLAG CONDITIONING AGENT FOR STEEL DESUL...
Publication number
20240247330
Publication date
Jul 25, 2024
S. A. Lhoist Recherche et Developpement
Eric Perrin
C21 - METALLURGY OF IRON
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Patent Application
MOLTEN STEEL DENITRIFICATION METHOD AND STEEL PRODUCTION METHOD
Publication number
20240247329
Publication date
Jul 25, 2024
JFE STEEL CORPORATION
Hidemitsu NEGISHI
C21 - METALLURGY OF IRON
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Patent Application
SYSTEMS AND METHODS FOR SELF-REDUCTION OF IRON ORE
Publication number
20240229176
Publication date
Jul 11, 2024
Charm Industrial, Inc.
Peter Reinhardt
C21 - METALLURGY OF IRON
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Patent Application
METHOD FOR DEPHOSPHORIZATION OF MOLTEN IRON
Publication number
20240229177
Publication date
Jul 11, 2024
JFE STEEL CORPORATION
Futoshi OGASAWARA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL FOR BOLTS, AND MANUFACTURING METHOD THEREFOR
Publication number
20240209469
Publication date
Jun 27, 2024
Baoshan Iron & Steel Co., Ltd
Zan Yao
C21 - METALLURGY OF IRON
Information
Patent Application
ELECTRIC FURNACE AND STEELMAKING METHOD
Publication number
20240191315
Publication date
Jun 13, 2024
JFE STEEL CORPORATION
Futoshi OGASAWARA
C21 - METALLURGY OF IRON