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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE	75007 PARIS

International Classification(s)

• F27D:DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, ....
• C21B:MANUFACTURE OF IRON OR STEEL

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Blostein, Philippe	Paris, FR	4	29
Devaux, Michel	Roissy-en-Brie, FR	6	20
Dubettier-Grenier, Richard	La Varenne Saint Hilaire, FR	38	86

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Feb 21, 2026
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Feb 21, 2030

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 21, 2018	US,10054366,B2   US10054366B2	GRANTED PATENT AS SECOND PUBLICATION
October 17, 2013	US,20130270752,A1   US20130270752A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 10054366

Process for operating a blast furnace installation with top gas recycling

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