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

Patent Owner(s)

Patent Owner	Address
STATOIL ASA	4035 STAVANGER

International Classification(s)

• C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
• C12P:FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESI....
• C12N:MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF
• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kotlar, Hans Kristian	Stavanger, NO	16	243

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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	Apr 21, 2026

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
October 21, 2014	US,8863855,B2   US8863855B2	GRANTED PATENT AS SECOND PUBLICATION
July 01, 2010	US,20100163230,A1   US20100163230A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8863855

Method of enhancing oil recovery

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