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

Patent Owner(s)

Patent Owner	Address
LANXESS DEUTSCHLAND GMBH	50569 KÖLN

International Classification(s)

• C09C:TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBRO....
• C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Boll, Matthias	Cologne, DE	26	57
Friedrich, Holger	Newcastle, ZA	52	384
Ortmann, Rainer	Cologne, DE	16	79
Stenger, Matthias	Monheim, DE	8	25

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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	Nov 30, 2024
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 30, 2028

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
May 30, 2017	US,9663383,B2   US9663383B2	GRANTED PATENT AS SECOND PUBLICATION
August 22, 2013	US,20130216471,A1   US20130216471A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9663383

Process for preparing chromium(III) oxide

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