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

Patent Owner(s)

Patent Owner	Address
KURITA WATER INDUSTRIES LTD	10-1 NAKANO 4-CHOME NAKANO-KU TOKYO 1640001

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• C10G:CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HY....
• C23F:NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM S....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hagiwara, Tsuyoshi	Tokyo, JP	27	357
Koizumi, Masakazu	Tokyo, JP	12	53
Tanaka, Koichi	Tokyo, JP	431	4398

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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 15, 2012	US,8177962,B2   US8177962B2	GRANTED PATENT AS SECOND PUBLICATION
March 02, 2006	US,20060043340,A1   US20060043340A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8177962

Metal corrosion inhibitor and hydrogen chloride formation inhibitor in a crude oil atmospheric distillation unit

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