Treatment with gases

Industry

CPC
C21C7/072

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21CPROCESSING OF PIG-IRON C21C7/00Treating molten ferrous alloys

Current Industry

C21C7/072Treatment with gases

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method for controlling nitrogen in steelmaking by spraying hydrogen...
- Patent number 12,234,521
- Issue date Feb 25, 2025
- Xuanhua Iron and Steel Group Co., Ltd.
- Hongbin Wang
- C21 - METALLURGY OF IRON
Information 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
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
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
Gas purging plug, gas purging system, method for characterization o...
- Patent number 11,408,040
- Issue date Aug 9, 2022
- Refractory Intellectual Property GmbH & Co. KG
- Christian Manhart
- C21 - METALLURGY OF IRON
Information Patent Grant
Stainless steel product
- Patent number 10,822,679
- Issue date Nov 3, 2020
- Nippon Steel Corporation
- Hideya Kaminaka
- C21 - METALLURGY OF IRON
Information Patent Grant
Clean and rapid smelting method in an electric arc furnace with ful...
- Patent number 10,808,290
- Issue date Oct 20, 2020
- University of Science and Technology Beijing
- Rong Zhu
- C21 - METALLURGY OF IRON
Information Patent Grant
Bottom stirring tuyere and method for a basic oxygen furnace
- Patent number 10,781,499
- Issue date Sep 22, 2020
- Air Products and Chemicals, Inc.
- Gregory J. Buragino
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for refining molten steel in vacuum degassing equipment
- Patent number 10,745,771
- Issue date Aug 18, 2020
- JFE Steel Corporation
- Yusuke Fujii
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultrasonic degassing of molten metals
- Patent number 10,640,846
- Issue date May 5, 2020
- Southwire Company, LLC
- Victor F. Rundquist
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Multiple chamber material-stirring lance and method
- Patent number 10,344,343
- Issue date Jul 9, 2019
- Larry J Epps
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Securing device for a cylindrical ceramic hollow body and fireproof...
- Patent number 10,330,387
- Issue date Jun 25, 2019
- Refractory Intellectual Property GmbH & Co. KG
- Bojan Zivanovic
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Coaxial material-stirring lance and method of use
- Patent number 10,240,218
- Issue date Mar 26, 2019
- Larry J Epps
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for refining hot metal in converter
- Patent number 9,957,581
- Issue date May 1, 2018
- JFE Steel Corporation
- Kenji Nakase
- C21 - METALLURGY OF IRON
Information Patent Grant
Lance and operation method using the same
- Patent number 9,863,014
- Issue date Jan 9, 2018
- Posco
- Chang Su Ha
- C21 - METALLURGY OF IRON
Information Patent Grant
Refractory ceramic gas purging element
- Patent number 9,863,708
- Issue date Jan 9, 2018
- Refractory Intellectual Property GmbH & Co. KG
- Bojan Zivanovic
- C21 - METALLURGY OF IRON
Information Patent Grant
Straight barrel type vacuum refining device and method for use the...
- Patent number 9,809,868
- Issue date Nov 7, 2017
- MAGANG (GROUP) HOLDING CO. LTD.
- Liping Wu
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for preparing low-cost clean steel
- Patent number 9,708,676
- Issue date Jul 18, 2017
- Fuping Tang
- C21 - METALLURGY OF IRON
Information Patent Grant
Gas purging element and associated gas feed line
- Patent number 9,683,272
- Issue date Jun 20, 2017
- Refractory Intellectual Property GmbH & Co. KG
- Bernd Trummer
- C21 - METALLURGY OF IRON
Information Patent Grant
Alloy refining methods
- Patent number 9,683,273
- Issue date Jun 20, 2017
- ATI PROPERTIES LLC
- Roy J. Matway
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultrasonic degassing of molten metals
- Patent number 9,617,617
- Issue date Apr 11, 2017
- Southwire Company, LLC
- Victor F. Rundquist
- C21 - METALLURGY OF IRON
Information Patent Grant
Flexible minimum energy utilization electric arc furnace system and...
- Patent number 9,551,045
- Issue date Jan 24, 2017
- A. Finkl & Sons Co.
- John A. Guliana
- C21 - METALLURGY OF IRON
Information Patent Grant
Converter steelmaking method
- Patent number 9,493,854
- Issue date Nov 15, 2016
- JFE Steel Corporation
- Yuichi Uchida
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultrasonic device with integrated gas delivery system
- Patent number 9,382,598
- Issue date Jul 5, 2016
- Southwire Company, LLC
- Victor F. Rundquist
- C21 - METALLURGY OF IRON
Information Patent Grant
Gas blowing nozzle
- Patent number 9,109,838
- Issue date Aug 18, 2015
- Shinagawa Refractories Co., Ltd.
- Shinobu Imai
- C21 - METALLURGY OF IRON
Information Patent Grant
Device for adding fluid to a liquid
- Patent number 8,888,075
- Issue date Nov 18, 2014
- ALU Innovation AS
- Karl Venaas
- C21 - METALLURGY OF IRON
Information Patent Grant
Composition of matter tailoring: system I
- Patent number 8,679,373
- Issue date Mar 25, 2014
- Electromagnetics Corporation
- Christopher J. Nagel
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultrasonic device with integrated gas delivery system
- Patent number 8,652,397
- Issue date Feb 18, 2014
- Southwire Company
- Victor F. Rundquist
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultrasonic degassing of molten metals
- Patent number 8,574,336
- Issue date Nov 5, 2013
- Southwire Company
- Victor F. Rundquist
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR SLAG MODIFICATION DURING END PERIOD OF CASTING IN STEEL...
- Publication number 20250188556
- Publication date Jun 12, 2025
- SOOCHOW UNIVERSITY
- Shaoyan HU
- C21 - METALLURGY OF IRON
Information Patent Application
Molten Metal Reactors and Processes
- Publication number 20250171866
- Publication date May 29, 2025
- Structured Nano Carbon LLC
- Charles Danny Cross
- C21 - METALLURGY OF IRON
Information Patent Application
HOT-ROLLED, LOW-TEMPERATURE-RESISTANT, H-SHAPED STEEL WITH GRADE OF...
- Publication number 20250092480
- Publication date Mar 20, 2025
- SHANDONG IRON AND STEEL COMPANY LTD.
- Zhongxue Wang
- B22 - CASTING POWDER METALLURGY
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
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
MOLTEN STEEL REFINING METHOD
- Publication number 20240294998
- Publication date Sep 5, 2024
- JFE STEEL CORPORATION
- Akifumi HARADA
- 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 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
Information 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
Information 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
Information 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
METHOD FOR EFFICIENTLY REMOVING CU IN ELECTRIC FURNACE STEELMAKING...
- Publication number 20240191317
- Publication date Jun 13, 2024
- UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
- Guangsheng WEI
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL
- Publication number 20240167112
- Publication date May 23, 2024
- JFE STEEL CORPORATION
- Shota AMANO
- C21 - METALLURGY OF IRON
Information Patent Application
CONVERTER STEELMAKING METHOD
- Publication number 20240068061
- Publication date Feb 29, 2024
- JFE STEEL CORPORATION
- Rei YOKOMORI
- C21 - METALLURGY OF IRON
Information Patent Application
ROTARY DEVICE FOR TREATING MOLTEN METAL
- Publication number 20240052444
- Publication date Feb 15, 2024
- FOSECO INTERNATIONAL LIMITED
- David HRABINA
- C21 - METALLURGY OF IRON
Information Patent Application
RECYCLING METHOD FOR MANUFACTURING HIGH SPEED STEEL MASTER ALLOY FR...
- Publication number 20240011133
- Publication date Jan 11, 2024
- T&E INC.
- Bae Gyun KIM
- C21 - METALLURGY OF IRON
Information Patent Application
Method for treating molten metals and/or slags in metallurgical bat...
- Publication number 20230416868
- Publication date Dec 28, 2023
- SMS group GMBH
- Hans-Jürgen ODENTHAL
- C21 - METALLURGY OF IRON
Information Patent Application
DECARBURIZATION END POINT DETERMINATION METHOD, DECARBURIZATION END...
- Publication number 20230083264
- Publication date Mar 16, 2023
- JFE STEEL CORPORATION
- Shuji KUYAMA
- C21 - METALLURGY OF IRON
Information Patent Application
DEVICE FOR TRAPPING HYDROGEN
- Publication number 20220340999
- Publication date Oct 27, 2022
- Constellium Issoire
- Jocelyn PRIGENT
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD TO REMOVE COPPER FROM STEEL, AND CORRESPONDING ADDITIVE
- Publication number 20220307098
- Publication date Sep 29, 2022
- Danieli & C. Officine Meccaniche Spa
- Alessandra PRIMAVERA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR SMELTING LOW NITROGEN STEEL USING ELECTRIC FURNACE
- Publication number 20210355555
- Publication date Nov 18, 2021
- Baoshan Iron & Steel Co., Ltd
- Yingtie XU
- C21 - METALLURGY OF IRON
Information Patent Application
Slag Discharging Method in Process of Producing Ultra-Low Phosphoru...
- Publication number 20210214813
- Publication date Jul 15, 2021
- NANYANG HANYE SPECIAL STEEL CO., LTD
- Shucheng Zhu
- C21 - METALLURGY OF IRON
Information Patent Application
GAS PURGING PLUG, GAS PURGING SYSTEM, METHOD FOR CHARACTERIZATION O...
- Publication number 20210164065
- Publication date Jun 3, 2021
- Refractory Intellectual Property GmbH & Co. KG
- Christian Manhart
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Application
METHOD FOR PRODUCING ALLOY STEEL
- Publication number 20200377977
- Publication date Dec 3, 2020
- POSCO
- Soo Chang KANG
- B22 - CASTING POWDER METALLURGY
Information Patent Application
MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION METHOD, HOLDING FURNAC...
- Publication number 20200340085
- Publication date Oct 29, 2020
- POSCO
- Woong-Hee HAN
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Application
CLEAN AND RAPID SMELTING METHOD IN AN ELECTRIC ARC FURNACE WITH FUL...
- Publication number 20190048430
- Publication date Feb 14, 2019
- University of Science and Technology Beijing
- Rong ZHU
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR REFINING MOLTEN STEEL IN VACUUM DEGASSING EQUIPMENT
- Publication number 20190048431
- Publication date Feb 14, 2019
- JFE STEEL CORPORATION
- Yusuke FUJII
- C21 - METALLURGY OF IRON
Information Patent Application
MULTIPLE CHAMBER MATERIAL-STIRRING LANCE AND METHOD
- Publication number 20170362672
- Publication date Dec 21, 2017
- Larry J Epps
- C21 - METALLURGY OF IRON
Information Patent Application
GAS PURGING ELEMENT AND CORRESPONDING GAS SUPPLY LINE
- Publication number 20170327914
- Publication date Nov 16, 2017
- Refractory Intellectual Property GmbH & Co. KG
- Bernd Trummer
- C21 - METALLURGY OF IRON

Treatment with gases

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for controlling nitrogen in steelmaking by spraying hydrogen...

Method for smelting low nitrogen steel using electric furnace

Recycling method for manufacturing high speed steel master alloy fr...

Device for trapping hydrogen

Slag discharging method in process of producing ultra-low phosphoru...

Gas purging plug, gas purging system, method for characterization o...

Stainless steel product

Clean and rapid smelting method in an electric arc furnace with ful...

Bottom stirring tuyere and method for a basic oxygen furnace

Method for refining molten steel in vacuum degassing equipment

Ultrasonic degassing of molten metals

Multiple chamber material-stirring lance and method

Securing device for a cylindrical ceramic hollow body and fireproof...

Coaxial material-stirring lance and method of use

Method for refining hot metal in converter

Lance and operation method using the same

Refractory ceramic gas purging element

Straight barrel type vacuum refining device and method for use the...

Method for preparing low-cost clean steel

Gas purging element and associated gas feed line

Alloy refining methods

Ultrasonic degassing of molten metals

Flexible minimum energy utilization electric arc furnace system and...

Converter steelmaking method

Ultrasonic device with integrated gas delivery system

Gas blowing nozzle

Device for adding fluid to a liquid

Composition of matter tailoring: system I

Ultrasonic device with integrated gas delivery system

Ultrasonic degassing of molten metals

Patents Applicationslast 30 patents

METHOD FOR SLAG MODIFICATION DURING END PERIOD OF CASTING IN STEEL...

Molten Metal Reactors and Processes

HOT-ROLLED, LOW-TEMPERATURE-RESISTANT, H-SHAPED STEEL WITH GRADE OF...

METHOD FOR CONTROLLING NITROGEN IN STEELMAKING BY SPRAYING HYDROGEN...

V-N MICROALLOYED STEEL AND METHOD FOR PRODUCING V-N MICROALLOYED AN...

MOLTEN STEEL REFINING METHOD

MOLTEN STEEL REFINING METHOD

METHOD FOR SECONDARILY REFINING MOLTEN STEEL AND METHOD OF PRODUCIN...

MOLTEN STEEL DENITRIFICATION METHOD AND STEEL PRODUCTION METHOD

METHOD FOR REFINING MOLTEN IRON

MOLTEN STEEL DENITRIFICATION METHOD, SIMULTANEOUS DENITRIFICATION A...

METHOD FOR DEPHOSPHORIZATION OF MOLTEN IRON

METHOD FOR EFFICIENTLY REMOVING CU IN ELECTRIC FURNACE STEELMAKING...

METHOD FOR OPERATING CONVERTER AND METHOD FOR PRODUCING MOLTEN STEEL

CONVERTER STEELMAKING METHOD

ROTARY DEVICE FOR TREATING MOLTEN METAL

RECYCLING METHOD FOR MANUFACTURING HIGH SPEED STEEL MASTER ALLOY FR...

Method for treating molten metals and/or slags in metallurgical bat...

DECARBURIZATION END POINT DETERMINATION METHOD, DECARBURIZATION END...

DEVICE FOR TRAPPING HYDROGEN

METHOD TO REMOVE COPPER FROM STEEL, AND CORRESPONDING ADDITIVE

METHOD FOR SMELTING LOW NITROGEN STEEL USING ELECTRIC FURNACE

Slag Discharging Method in Process of Producing Ultra-Low Phosphoru...

GAS PURGING PLUG, GAS PURGING SYSTEM, METHOD FOR CHARACTERIZATION O...

METHOD FOR PRODUCING ALLOY STEEL

MOLTEN MANGANESE-CONTAINING STEEL PRODUCTION METHOD, HOLDING FURNAC...

CLEAN AND RAPID SMELTING METHOD IN AN ELECTRIC ARC FURNACE WITH FUL...

METHOD FOR REFINING MOLTEN STEEL IN VACUUM DEGASSING EQUIPMENT

MULTIPLE CHAMBER MATERIAL-STIRRING LANCE AND METHOD

GAS PURGING ELEMENT AND CORRESPONDING GAS SUPPLY LINE