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

Patent Owner(s)

Patent Owner	Address
SACHTLEBEN CHEMIE GMBH	DR RUDOLF-SACHTLEBEN-STRASSE 4 D-47198 DUISBURG

International Classification(s)

• B82Y:SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; ....
• C09C:TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBRO....
• C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ebbinghaus, Peter	Herten, DE	4	6
Gosch, Elke	Krefeld, DE	2	4
Grothe, Sonja	Oberhausen, DE	12	39
Hocken, Jörg	Meerbusch, DE	4	6
Kohnert, Jens	Alpen, DE	3	9
Rohe, Bernd	Moers, DE	13	58

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	May 1, 2028

Fee	Large entity fee	small entity fee	micro entity fee
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
November 01, 2016	US,9481581,B2   US9481581B2	GRANTED PATENT AS SECOND PUBLICATION
March 29, 2012	US,20120077059,A1   US20120077059A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9481581

Process for the production of a storage-stable barium sulphate having good dispersibility

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