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

Patent Owner(s)

Patent Owner	Address
DIDIER-WERKE AG	65189 WIESBADEN

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kleinevoss, Albert	Hoehr-Grenzhausen, DE	5	28
Mossal, Karl-Heinz	Idstein, DE	1	5
Weichert, Thomas	Bad Schwalbach, DE	3	20
Yesiltas, Selim	Oestrich-Winkel, DE	1	5

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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 No: 6352951

Refractory material based on chromium corundum, a chromium corundum brick and the use of said brick

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