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

Patent Owner(s)

Patent Owner	Address
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO KG	AUSTRIA VIENNA

International Classification(s)

• F27D:DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, ....
• B22D:CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY ....
• C21C:PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Klikovich, Michael	Hinterbruhl, AT	8	6
Kneis, Leopold	Grimmenstein, AT	5	3
Kulp, Roman	Wien, AT	4	2
Trummer, Bernd	Graz, AT	7	2

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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	May 16, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	May 16, 2029

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

Full Text

US Patent Application No: 2017/0327,914

GAS PURGING ELEMENT AND CORRESPONDING GAS SUPPLY LINE

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