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

Patent Owner(s)

Patent Owner	Address
HELLMA MATERIALS GMBH & CO KG	07745 JENA

International Classification(s)

• C30B:SINGLE-CRYSTAL GROWTH

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Guett, Rainer	Bad Klosterlausnitz , DE	2	16
Kandler, Joerg	Cospeda , DE	7	34
Menzel, Andreas	Jena , DE	17	81
Mueller, Matthias	Jena , DE	119	891
Weisleder, Andreas	Tautenhain , DE	3	27

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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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 15, 2009	US,7588637,B2   US7588637B2	GRANTED PATENT AS SECOND PUBLICATION
August 16, 2007	US,20070186844,A1   US20070186844A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7588637

Production of high-purity, large-volume monocrystals that are especially radiation-resistant from crystal shards

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