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

Patent Owner(s)

Patent Owner	Address
SHELL OIL COMPANY	P O BOX 2463 ONE SHELL PLAZA HOUSTON TX 77252-2463

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bass, Ronald Marshall	Houston, US	33	2147
Cao, Renfeng Richard	Houston, US	5	217
Cruz, Antonio Maria Guimaraes Leite	Rijswijk, NL	5	183
Nguyen, Scott Vinh	Houston, US	18	1758
Ocampos, Ernesto Rafael Fonseca	Houston, US	4	167
Raghu, Damodaran	Houston, US	3	142
Son, Jaime Santos	Houston, US	8	1350
Venditto, James Joseph	Houston, US	3	131

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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
September 18, 2012	US,8267185,B2   US8267185B2	GRANTED PATENT AS SECOND PUBLICATION
August 19, 2010	US,20100206570,A1   US20100206570A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8267185

Circulated heated transfer fluid systems used to treat a subsurface formation

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