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

Patent Owner(s)

Patent Owner	Address
ENVENTURE GLOBAL TECHNOLOGY L L C	15995 NORTH BARKERS LANDING SUITE 350 HOUSTON TX 77079

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brisco, David Paul	Duncan, US	112	4204
Costa, Scott	Katy, US	40	614
Gray, Malcolm	Houston, US	13	117
Grinberg, Grigoriy	Sylvania, US	30	291
Shuster, Mark	Rozeuseomlaan, NL	38	514
Wasson, Russell	Houston, US	6	34
Watson, Brock Wayne	Carrollton, US	24	694

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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
June 12, 2012	US,8196652,B2   US8196652B2	GRANTED PATENT AS SECOND PUBLICATION
August 06, 2009	US,20090193871,A1   US20090193871A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8196652

Radial expansion system

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