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

Patent Owner(s)

Patent Owner	Address
H C STARCK TUNGSTEN GMBH	GOSLAR GERMANY GOSLAR LOWER SAXONY

International Classification(s)

• C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Erb, Michael	Salzgitter, DE	16	38
Lohse, Michael	Goslar, DE	5	9
Marschall, Klaus-Jürgen	Goslar, DE	2	1
Meese-Marktscheffel, Juliane	Goslar, DE	43	128
Schrumpf, Frank	Goslar, DE	16	40
Stoller, Viktor	Bad Harzburg, DE	19	84

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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
May 14, 2013	US,8440161,B2   US8440161B2	GRANTED PATENT AS SECOND PUBLICATION
January 31, 2013	US,20130029153,A1   US20130029153A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8440161

Ammonium paratungstate hydrates and ammonium paratungstate decahydrate

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