in hearth-type furnaces

Industry

CPC
C21B13/10

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21BMANUFACTURE OF IRON OR STEEL C21B13/00Making spongy iron or liquid steel, by direct processes

Current Industry

C21B13/10in hearth-type furnaces

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Direct smelting process with full combustion
- Patent number 12,018,340
- Issue date Jun 25, 2024
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Hendrikus Koenraad Albertus Meijer
- C21 - METALLURGY OF IRON
Information Patent Grant
Rotary hearth furnace, and method for producing reduced iron using...
- Patent number 11,428,468
- Issue date Aug 30, 2022
- Kobe Steel, Ltd.
- Tomoki Uemura
- C21 - METALLURGY OF IRON
Information Patent Grant
Reduced iron production method
- Patent number 11,293,068
- Issue date Apr 5, 2022
- Kobe Steel, Ltd.
- Taiji Hatakeyama
- C21 - METALLURGY OF IRON
Information Patent Grant
Reduced iron production method and device
- Patent number 10,571,193
- Issue date Feb 25, 2020
- Kobe Steel, Ltd.
- Taiji Hatakeyama
- C21 - METALLURGY OF IRON
Information Patent Grant
Production method of granular metallic iron
- Patent number 10,407,744
- Issue date Sep 10, 2019
- Kobe Steel, Ltd.
- Shorin O
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for smelting nickel oxide ore
- Patent number 10,364,480
- Issue date Jul 30, 2019
- Sumitomo Metal Mining Co., Ltd.
- Junichi Takahashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for smelting saprolite ore
- Patent number 10,301,704
- Issue date May 28, 2019
- Sumitomo Metal Mining Co., Ltd.
- Junichi Takahashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Rotary hearth furnace
- Patent number 10,294,535
- Issue date May 21, 2019
- Kobe Steel, Ltd.
- Tadashi Yaso
- C21 - METALLURGY OF IRON
Information Patent Grant
Device for producing partially reduced iron
- Patent number 10,155,997
- Issue date Dec 18, 2018
- PRIMETALS TECHNOLOGIES JAPAN, LTD.
- Susumu Kamikawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct smelting process and apparatus
- Patent number 10,151,014
- Issue date Dec 11, 2018
- Tata Steel Limited
- Jacques Pilote
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Process for manufacturing reduced iron agglomerates
- Patent number 10,144,981
- Issue date Dec 4, 2018
- Kobe Steel, Ltd.
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method to operate a smelt cyclone
- Patent number 10,100,378
- Issue date Oct 16, 2018
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Hendrikus Koenraad Albertus Meijer
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for smelting nickel oxide ore
- Patent number 10,072,313
- Issue date Sep 11, 2018
- Sumitomo Metal Mining Co., Ltd.
- Junichi Takahashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing reduced iron
- Patent number 10,017,836
- Issue date Jul 10, 2018
- Kobe Steel, Ltd.
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Grant
Burning apparatus and method for manufacturing reduced iron using t...
- Patent number 9,976,806
- Issue date May 22, 2018
- Posco
- Sang Han Son
- C21 - METALLURGY OF IRON
Information Patent Grant
Starting a smelting process
- Patent number 9,771,626
- Issue date Sep 26, 2017
- Technological Resources Pty. Limited
- Carolyn McCarthy
- C21 - METALLURGY OF IRON
Information Patent Grant
Methods and systems for producing ferro-chrome in a duplex furnace
- Patent number 9,695,492
- Issue date Jul 4, 2017
- Midrex Technologies, Inc.
- Vincent Chevrier
- C21 - METALLURGY OF IRON
Information Patent Grant
Cokeless reverberatory furnace for melting iron with separate heart...
- Patent number 9,617,610
- Issue date Apr 11, 2017
- Baha Elsayed Abulnaga
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for manufacturing molten metal
- Patent number 9,557,109
- Issue date Jan 31, 2017
- Kobe Steel, Ltd.
- Masahiko Tetsumoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for manufacturing molten metal
- Patent number 9,453,678
- Issue date Sep 27, 2016
- Kobe Steel, Ltd.
- Masahiko Tetsumoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Producing of pig iron from iron-containing materials
- Patent number 9,404,165
- Issue date Aug 2, 2016
- HOFFMAN & SONS TECHNOLOGIES, LLC
- Glenn E. Hoffman
- C21 - METALLURGY OF IRON
Information Patent Grant
Rotary hearth furnace exhaust gas duct apparatus and method for ope...
- Patent number 9,310,133
- Issue date Apr 12, 2016
- Kobe Steel, Ltd.
- Noriaki Mizutani
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing granular metallic iron
- Patent number 9,180,521
- Issue date Nov 10, 2015
- Kobe Steel, Ltd.
- Ryota Misawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus and methods for producing direct reduced iron
- Patent number 9,115,413
- Issue date Aug 25, 2015
- Giulio Grossi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing direct reduction iron and reduction firing...
- Patent number 9,115,412
- Issue date Aug 25, 2015
- PANGANG GROUP COMPANY LTD.
- Jinlong Zhan
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing reduced iron pellets, and process for produci...
- Patent number 9,034,074
- Issue date May 19, 2015
- Nippon Steel & Sumitomo Metal Corporation
- Tetsuharu Ibaraki
- C21 - METALLURGY OF IRON
Information Patent Grant
Partially-reduced iron producing apparatus and partially-reduced ir...
- Patent number 8,974,571
- Issue date Mar 10, 2015
- Mitsubishi-Hitachi Metals Machinery, Inc.
- Susumu Kamikawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Partially-reduced iron producing method and partially-reduced iron...
- Patent number 8,961,650
- Issue date Feb 24, 2015
- Mitsubishi-Hitachi Metals Machinery, Inc.
- Susumu Kamikawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Feeding system for reduced iron material
- Patent number 8,915,352
- Issue date Dec 23, 2014
- Kobe Steel, Ltd.
- Osamu Tsuge
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct production of iron slabs and nuggets from ore without pellet...
- Patent number 8,906,131
- Issue date Dec 9, 2014
- John J. Simmons
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
DIRECT BATH SMELTING PROCESS WITH FAST QUENCH OF MOLTEN MATERIAL IN...
- Publication number 20240279757
- Publication date Aug 22, 2024
- Nucor Corporation
- Rodney James Dry
- C21 - METALLURGY OF IRON
Information Patent Application
PROCESS AND SYSTEM FOR THE PRODUCTION OF IRON NUGGETS
- Publication number 20240182993
- Publication date Jun 6, 2024
- Carbontec Energy Corporation
- John Simmons
- C21 - METALLURGY OF IRON
Information Patent Application
BIOMASS DIRECT REDUCED IRON
- Publication number 20230407423
- Publication date Dec 21, 2023
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Michael Buckley
- C21 - METALLURGY OF IRON
Information Patent Application
IRONMAKING SYSTEM AND IRONMAKING PROCESS OF TWO-SECTION DOWNDRAFT BED
- Publication number 20220213567
- Publication date Jul 7, 2022
- Shandong University
- Chunyuan MA
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT SMELTING PROCESS WITH FULL COMBUSTION
- Publication number 20210123111
- Publication date Apr 29, 2021
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Hendrikus Koenraad Albertus MEIJER
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Application
REDUCED IRON PRODUCTION METHOD
- Publication number 20200291494
- Publication date Sep 17, 2020
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Taiji HATAKEYAMA
- C21 - METALLURGY OF IRON
Information Patent Application
CLASSIFIED REDUCTION GASIFICATION IRON SMELTING PROCESS OF IRON ORE...
- Publication number 20200140966
- Publication date May 7, 2020
- China University of Petroleum (East China)
- Yuanyu Tian
- C21 - METALLURGY OF IRON
Information Patent Application
ROTARY HEARTH FURNACE, AND METHOD FOR PRODUCING REDUCED IRON USING...
- Publication number 20190301800
- Publication date Oct 3, 2019
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Tomoki UEMURA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD AND APPARATUS FOR TREATING IRON-CONTAINED RAW MATERIAL USING...
- Publication number 20180087120
- Publication date Mar 29, 2018
- INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES
- Tao Qi
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR SMELTING SAPROLITE ORE
- Publication number 20180030574
- Publication date Feb 1, 2018
- Sumitomo Metal Mining Co., Ltd.
- Junichi Takahashi
- C21 - METALLURGY OF IRON
Information Patent Application
REDUCED IRON PRODUCTION METHOD AND DEVICE
- Publication number 20180017326
- Publication date Jan 18, 2018
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Taiji HATAKEYAMA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR SMELTING NICKEL OXIDE ORE
- Publication number 20170342514
- Publication date Nov 30, 2017
- Junichi Takahashi
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD OF PRODUCTION AND APPARATUS FOR PRODUCTION OF REDUCED IRON
- Publication number 20170335416
- Publication date Nov 23, 2017
- Tetsugen Corporation
- Seita Uekawa
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR SMELTING NICKEL OXIDE ORE
- Publication number 20170306444
- Publication date Oct 26, 2017
- Sumitomo Metal Mining Co., Ltd.
- Junichi Takahashi
- C21 - METALLURGY OF IRON
Information Patent Application
ROTARY HEARTH FURNACE
- Publication number 20170198365
- Publication date Jul 13, 2017
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Tadashi YASO
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD TO OPERATE A SMELT CYCLONE
- Publication number 20160312320
- Publication date Oct 27, 2016
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Hendrikus Koenraad Albertus MEIJER
- C21 - METALLURGY OF IRON
Information Patent Application
DEVICE FOR PRODUCING PARTIALLY REDUCED IRON
- Publication number 20160304977
- Publication date Oct 20, 2016
- PRIMETALS TECHNOLOGIES JAPAN, LTD.
- Susumu KAMIKAWA
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR MANUFACTURING IRON NUGGETS
- Publication number 20160237514
- Publication date Aug 18, 2016
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Shuzo ITO
- C21 - METALLURGY OF IRON
Information Patent Application
SMELTING APPARATUS AND METHOD OF USING THE SAME
- Publication number 20160208350
- Publication date Jul 21, 2016
- NSGI
- Ian COX
- C21 - METALLURGY OF IRON
Information Patent Application
Direct Smelting Process and Apparatus
- Publication number 20160017458
- Publication date Jan 21, 2016
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Jacques Pilote
- C21 - METALLURGY OF IRON
Information Patent Application
COKELESS REVERBERATORY FURNACE FOR MELTING IRON WITH SEPARATE HEART...
- Publication number 20160017446
- Publication date Jan 21, 2016
- Baha Elsayed Abulnaga
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING REDUCED IRON AGGLOMERATE
- Publication number 20150361515
- Publication date Dec 17, 2015
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Application
PRODUCTION OF PIG IRON
- Publication number 20150275323
- Publication date Oct 1, 2015
- HOFFMAN & SONS TECHNOLOGIES, LLC
- Glenn E. Hoffman
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD FOR PRODUCING METALLIC IRON
- Publication number 20150203931
- Publication date Jul 23, 2015
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Takeshi Sugiyama
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Application
METHODS AND SYSTEMS FOR PRODUCING FERRO-CHROME IN A DUPLEX FURNACE
- Publication number 20140352494
- Publication date Dec 4, 2014
- MIDREX TECHNOLOGIES, INC.
- Vincent CHEVRIER
- C21 - METALLURGY OF IRON
Information Patent Application
PRODUCING OF PIG IRON FROM IRON-CONTAINING MATERIALS
- Publication number 20140331821
- Publication date Nov 13, 2014
- HOFFMAN & SONS TECHNOLOGIES, LLC
- Glenn E. Hoffman
- C21 - METALLURGY OF IRON
Information Patent Application
Method of Manufacturing Direct Reduction Iron and Reduction Firing...
- Publication number 20140150606
- Publication date Jun 5, 2014
- Jinlong Zhan
- C21 - METALLURGY OF IRON
Information Patent Application
PROCESS OF THE PRODUCTION AND REFINING OF LOW-CARBON DRI (DIRECT RE...
- Publication number 20140060251
- Publication date Mar 6, 2014
- Wei-Kao Lu
- C21 - METALLURGY OF IRON
Information Patent Application
USE OF BIMODAL CARBON DISTRIBUTION IN COMPACTS FOR PRODUCING METALL...
- Publication number 20130291685
- Publication date Nov 7, 2013
- NU-IRON TECHNOLOGY, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Application
REFRACTORY LINING FOR TITANIUM ORE BENEFICIATION
- Publication number 20130287942
- Publication date Oct 31, 2013
- John James BARNES
- C21 - METALLURGY OF IRON

in hearth-type furnaces

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Direct smelting process with full combustion

Rotary hearth furnace, and method for producing reduced iron using...

Reduced iron production method

Reduced iron production method and device

Production method of granular metallic iron

Method for smelting nickel oxide ore

Method for smelting saprolite ore

Rotary hearth furnace

Device for producing partially reduced iron

Direct smelting process and apparatus

Process for manufacturing reduced iron agglomerates

Method to operate a smelt cyclone

Method for smelting nickel oxide ore

Method for producing reduced iron

Burning apparatus and method for manufacturing reduced iron using t...

Starting a smelting process

Methods and systems for producing ferro-chrome in a duplex furnace

Cokeless reverberatory furnace for melting iron with separate heart...

Apparatus for manufacturing molten metal

Apparatus for manufacturing molten metal

Producing of pig iron from iron-containing materials

Rotary hearth furnace exhaust gas duct apparatus and method for ope...

Method for producing granular metallic iron

Apparatus and methods for producing direct reduced iron

Method of manufacturing direct reduction iron and reduction firing...

Process for producing reduced iron pellets, and process for produci...

Partially-reduced iron producing apparatus and partially-reduced ir...

Partially-reduced iron producing method and partially-reduced iron...

Feeding system for reduced iron material

Direct production of iron slabs and nuggets from ore without pellet...

Patents Applicationslast 30 patents

DIRECT BATH SMELTING PROCESS WITH FAST QUENCH OF MOLTEN MATERIAL IN...

PROCESS AND SYSTEM FOR THE PRODUCTION OF IRON NUGGETS

BIOMASS DIRECT REDUCED IRON

IRONMAKING SYSTEM AND IRONMAKING PROCESS OF TWO-SECTION DOWNDRAFT BED

DIRECT SMELTING PROCESS WITH FULL COMBUSTION

REDUCED IRON PRODUCTION METHOD

CLASSIFIED REDUCTION GASIFICATION IRON SMELTING PROCESS OF IRON ORE...

ROTARY HEARTH FURNACE, AND METHOD FOR PRODUCING REDUCED IRON USING...

METHOD AND APPARATUS FOR TREATING IRON-CONTAINED RAW MATERIAL USING...

METHOD FOR SMELTING SAPROLITE ORE

REDUCED IRON PRODUCTION METHOD AND DEVICE

METHOD FOR SMELTING NICKEL OXIDE ORE

METHOD OF PRODUCTION AND APPARATUS FOR PRODUCTION OF REDUCED IRON

METHOD FOR SMELTING NICKEL OXIDE ORE

ROTARY HEARTH FURNACE

METHOD TO OPERATE A SMELT CYCLONE

DEVICE FOR PRODUCING PARTIALLY REDUCED IRON

METHOD FOR MANUFACTURING IRON NUGGETS

SMELTING APPARATUS AND METHOD OF USING THE SAME

Direct Smelting Process and Apparatus

COKELESS REVERBERATORY FURNACE FOR MELTING IRON WITH SEPARATE HEART...

METHOD FOR PRODUCING REDUCED IRON AGGLOMERATE

PRODUCTION OF PIG IRON

METHOD FOR PRODUCING METALLIC IRON

METHODS AND SYSTEMS FOR PRODUCING FERRO-CHROME IN A DUPLEX FURNACE

PRODUCING OF PIG IRON FROM IRON-CONTAINING MATERIALS

Method of Manufacturing Direct Reduction Iron and Reduction Firing...

PROCESS OF THE PRODUCTION AND REFINING OF LOW-CARBON DRI (DIRECT RE...

USE OF BIMODAL CARBON DISTRIBUTION IN COMPACTS FOR PRODUCING METALL...

REFRACTORY LINING FOR TITANIUM ORE BENEFICIATION