in hearth-type furnaces

Industry

CPC
C21B11/08

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Parent Industries

CCHEMISTRY METALLURGY C21Iron metallurgy C21BMANUFACTURE OF IRON OR STEEL C21B11/00Making pig-iron other than in blast furnaces

Current Industry

C21B11/08in hearth-type furnaces

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method for off-gas composition control in a metal smelting apparatus
- Patent number 11,390,926
- Issue date Jul 19, 2022
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Johannes Hage
- 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
Direct smelting process
- Patent number 10,280,489
- Issue date May 7, 2019
- Tata Steel Limited
- Rodney James Dry
- 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
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
Direct smelting process
- Patent number 10,023,945
- Issue date Jul 17, 2018
- Tata Steel Limited
- Rodney James Dry
- 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
Starting a smelting process
- Patent number 9,551,044
- Issue date Jan 24, 2017
- Technological Resources Pty. Limited
- Rodney James Dry
- C21 - METALLURGY OF IRON
Information Patent Grant
Starting a smelting process
- Patent number 9,309,579
- Issue date Apr 12, 2016
- Technological Resources Pty, Limited
- Jacques Pilote
- C21 - METALLURGY OF IRON
Information Patent Grant
System and method for producing metallic iron
- Patent number 8,790,442
- Issue date Jul 29, 2014
- Nu-Iron Technology LLC
- David J. Englund
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for coproduction of pig iron and high quality...
- Patent number 8,764,875
- Issue date Jul 1, 2014
- Xiaodi Huang
- C21 - METALLURGY OF IRON
Information Patent Grant
Use of bimodal carbon distribution in compacts for producing metall...
- Patent number 8,690,988
- Issue date Apr 8, 2014
- Nu-Iron Technology, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Grant
Lance for injecting solid material into a vessel
- Patent number 8,613,790
- Issue date Dec 24, 2013
- Technological Resources PTY Limited
- Bronislaw Jerzy Minko
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct smelting plant
- Patent number 8,562,902
- Issue date Oct 22, 2013
- Technologies Resources Pty Limited
- Robert Loiacono
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct smelting plant
- Patent number 8,562,903
- Issue date Oct 22, 2013
- Technological Resources PTY Limited
- Mark Hayton
- C21 - METALLURGY OF IRON
Information Patent Grant
System and method for producing metallic iron
- Patent number 8,377,371
- Issue date Feb 19, 2013
- Nu-Iron Technology, LLC
- Narayan Govindaswami
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct smelting plant
- Patent number 8,318,081
- Issue date Nov 27, 2012
- Technological Resources PTY Limited
- Rodney James Dry
- C21 - METALLURGY OF IRON
Information Patent Grant
Direct smelting plant
- Patent number 8,313,690
- Issue date Nov 20, 2012
- Technological Resources PTY Limited
- Mark Hayton
- C21 - METALLURGY OF IRON
Information Patent Grant
Use of bimodal carbon distribution in compacts for producing metall...
- Patent number 8,287,621
- Issue date Oct 16, 2012
- Nu-Iron Technology, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Grant
System and method for producing metallic iron
- Patent number 8,025,711
- Issue date Sep 27, 2011
- Nu-Iron Technology, LLC
- Narayan Govindaswami
- C21 - METALLURGY OF IRON
Information Patent Grant
Cold start-up method for a direct smelting process
- Patent number 7,914,601
- Issue date Mar 29, 2011
- Technological Resources Pty. Limited
- Iain William Farr
- C21 - METALLURGY OF IRON
Information Patent Grant
Linear hearth furnace system and methods regarding same
- Patent number 7,875,236
- Issue date Jan 25, 2011
- Nu-Iron Technology, LLC
- Rodney L. Bleifuss
- C21 - METALLURGY OF IRON
Information Patent Grant
Forehearth
- Patent number 7,828,873
- Issue date Nov 9, 2010
- Technological Resources PTY Limited
- Matthew John Gurr
- C21 - METALLURGY OF IRON
Information Patent Grant
High pressure dry coal slurry extrusion pump
- Patent number 7,717,046
- Issue date May 18, 2010
- Pratt & Whitney Rocketdyne, Inc.
- Kenneth M Sprouse
- C21 - METALLURGY OF IRON
Information Patent Grant
Cupola flue gas treatment
- Patent number 7,718,149
- Issue date May 18, 2010
- NCH Corporation
- Donald A. Cameron
- C21 - METALLURGY OF IRON
Information Patent Grant
Linear hearth furnace system and methods regarding same
- Patent number 7,666,249
- Issue date Feb 23, 2010
- Nu-Iron Technology, LLC
- Rodney L. Bleifuss
- C21 - METALLURGY OF IRON
Information Patent Grant
Linear hearth furnace system and methods regarding same
- Patent number 7,413,592
- Issue date Aug 19, 2008
- Nu-Iron Technology, LLC
- Rodney L. Bleifuss
- C21 - METALLURGY OF IRON
Information Patent Grant
Metallurgical furnace with scrap metal preheater and dispenser
- Patent number 6,696,013
- Issue date Feb 24, 2004
- EMPCO (Canada) Ltd.
- Edgar R. Wunsche
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing molten metal iron
- Patent number 6,569,223
- Issue date May 27, 2003
- Midrex International B.V. Zurich Branch
- Yasuhiro Tanigaki
- C21 - METALLURGY OF IRON
Information Patent Grant
Iron oxide melt reduction furnace and method
- Patent number 4,181,812
- Issue date Jan 1, 1980
- Asea Aktiebolag
- Per H. Collin
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR OFF-GAS COMPOSITION CONTROL IN A METAL SMELTING APPARATUS
- Publication number 20210040572
- Publication date Feb 11, 2021
- TATA STEEL NEDERLAND TECHNOLOGY BV
- Johannes HAGE
- 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
System and Method for Forming Spherical Silica-Based Proppant and P...
- Publication number 20170145527
- Publication date May 25, 2017
- Premier Industries, LLC
- Richard Tabish
- C21 - METALLURGY OF IRON
Information Patent Application
Direct Smelting Process
- Publication number 20170081745
- Publication date Mar 23, 2017
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Rodney James Dry
- 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
STARTING A SMELTING PROCESS
- Publication number 20150259758
- Publication date Sep 17, 2015
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Carolyn McCarthy
- 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
PROCESS FOR MANUFACTURING REDUCED IRON AGGLOMERATES
- Publication number 20150027275
- Publication date Jan 29, 2015
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Application
Starting a Smelting Process
- Publication number 20140345425
- Publication date Nov 27, 2014
- Jacques Pilote
- C21 - METALLURGY OF IRON
Information Patent Application
STARTING A SMELTING PROCESS
- Publication number 20140318320
- Publication date Oct 30, 2014
- Rodney James Dry
- 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
DEVICE FOR PRODUCING GRANULAR METAL IRON AND PROCESS FOR PRODUCING...
- Publication number 20130118307
- Publication date May 16, 2013
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd)
- Shoichi Kikuchi
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT SMELTING PROCESS
- Publication number 20130116105
- Publication date May 9, 2013
- Rodney James Dry
- C21 - METALLURGY OF IRON
Information Patent Application
IRON-CARBON COMPOSITIONS
- Publication number 20130048906
- Publication date Feb 28, 2013
- THIRD MILLENNIUM METALS, LLC
- Jason V. Shugart
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR PRODUCING METALLIC IRON
- Publication number 20120192679
- Publication date Aug 2, 2012
- NU-IRON TECHNOLOGY, LLC
- David J. Englund
- C21 - METALLURGY OF IRON
Information Patent Application
USE OF BIMODAL CARBON DISTRIBUTION IN COMPACTS FOR PRODUCING METALL...
- Publication number 20120160060
- Publication date Jun 28, 2012
- NU-IRON TECHNOLOGY, LLC
- Iwao Iwasaki
- C21 - METALLURGY OF IRON
Information Patent Application
Method and Apparatus For Coproduction of Pig Iron and High Quality...
- Publication number 20120031232
- Publication date Feb 9, 2012
- Xiaodi Huang
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR PRODUCING METALLIC IRON
- Publication number 20120013054
- Publication date Jan 19, 2012
- NU-IRON TECHNOLOGY, LLC
- Narayan GOVINDASWAMI
- C21 - METALLURGY OF IRON
Information Patent Application
LANCE FOR INJECTING SOLID MATERIAL INTO A VESSEL
- Publication number 20110017021
- Publication date Jan 27, 2011
- Bronislaw Jerzy Minko
- C21 - METALLURGY OF IRON
Information Patent Application
FOREHEARTH
- Publication number 20100287992
- Publication date Nov 18, 2010
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Mark Hayton
- C21 - METALLURGY OF IRON
Information Patent Application
LINEAR HEARTH FURNACE SYSTEM AND METHODS REGARDING SAME
- Publication number 20100148410
- Publication date Jun 17, 2010
- NU-IRON TECHNOLOGY, LLC
- Rodney L. Bleifuss
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT SMELTING PLANT
- Publication number 20090309275
- Publication date Dec 17, 2009
- Robert Loiacono
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT SMELTING PLANT
- Publication number 20090218737
- Publication date Sep 3, 2009
- Mark Hayton
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT SMELTING PLANT
- Publication number 20090194919
- Publication date Aug 6, 2009
- Rodney James Dry
- C21 - METALLURGY OF IRON
Information Patent Application
DIRECT SMELTING PLANT
- Publication number 20090166937
- Publication date Jul 2, 2009
- TECHNOLOGICAL RESOURCES PTY. LIMITED
- Mark Hayton
- C21 - METALLURGY OF IRON
Information Patent Application
SYSTEM AND METHOD FOR PRODUCING METALLIC IRON
- Publication number 20090158892
- Publication date Jun 25, 2009
- NU-IRON TECHNOLOGY, LLC
- Narayan GOVINDASWAMI
- C21 - METALLURGY OF IRON
Information Patent Application
Cupola Flue Gas Treatment
- Publication number 20090155155
- Publication date Jun 18, 2009
- Donald A. Cameron
- C21 - METALLURGY OF IRON
Information Patent Application
COLD START-UP METHOD FOR A DIRECT SMELTING PROCESS
- Publication number 20090031858
- Publication date Feb 5, 2009
- Iain William Farr
- C21 - METALLURGY OF IRON
Information Patent Application
LOW VELOCITY STAGED COMBUSTION FOR FURNACE ATMOSPHERE CONTROL
- Publication number 20090004611
- Publication date Jan 1, 2009
- Hisashi Kobayashi
- C21 - METALLURGY OF IRON

in hearth-type furnaces

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for off-gas composition control in a metal smelting apparatus

Production method of granular metallic iron

Direct smelting process

Device for producing partially reduced iron

Process for manufacturing reduced iron agglomerates

Direct smelting process

Starting a smelting process

Starting a smelting process

Starting a smelting process

System and method for producing metallic iron

Method and apparatus for coproduction of pig iron and high quality...

Use of bimodal carbon distribution in compacts for producing metall...

Lance for injecting solid material into a vessel

Direct smelting plant

Direct smelting plant

System and method for producing metallic iron

Direct smelting plant

Direct smelting plant

Use of bimodal carbon distribution in compacts for producing metall...

System and method for producing metallic iron

Cold start-up method for a direct smelting process

Linear hearth furnace system and methods regarding same

Forehearth

High pressure dry coal slurry extrusion pump

Cupola flue gas treatment

Linear hearth furnace system and methods regarding same

Linear hearth furnace system and methods regarding same

Metallurgical furnace with scrap metal preheater and dispenser

Method of manufacturing molten metal iron

Iron oxide melt reduction furnace and method

Patents Applicationslast 30 patents

METHOD FOR OFF-GAS COMPOSITION CONTROL IN A METAL SMELTING APPARATUS

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

System and Method for Forming Spherical Silica-Based Proppant and P...

Direct Smelting Process

METHOD FOR MANUFACTURING IRON NUGGETS

SMELTING APPARATUS AND METHOD OF USING THE SAME

STARTING A SMELTING PROCESS

METHOD FOR PRODUCING METALLIC IRON

PROCESS FOR MANUFACTURING REDUCED IRON AGGLOMERATES

Starting a Smelting Process

STARTING A SMELTING PROCESS

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

DEVICE FOR PRODUCING GRANULAR METAL IRON AND PROCESS FOR PRODUCING...

DIRECT SMELTING PROCESS

IRON-CARBON COMPOSITIONS

SYSTEM AND METHOD FOR PRODUCING METALLIC IRON

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

Method and Apparatus For Coproduction of Pig Iron and High Quality...

SYSTEM AND METHOD FOR PRODUCING METALLIC IRON

LANCE FOR INJECTING SOLID MATERIAL INTO A VESSEL

FOREHEARTH

LINEAR HEARTH FURNACE SYSTEM AND METHODS REGARDING SAME

DIRECT SMELTING PLANT

DIRECT SMELTING PLANT

DIRECT SMELTING PLANT

DIRECT SMELTING PLANT

SYSTEM AND METHOD FOR PRODUCING METALLIC IRON

Cupola Flue Gas Treatment

COLD START-UP METHOD FOR A DIRECT SMELTING PROCESS

LOW VELOCITY STAGED COMBUSTION FOR FURNACE ATMOSPHERE CONTROL