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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	15995 NORTH BARKERS LANDING SUITE 350 HOUSTON TX 77002

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bullock, Michael Dennis	Houston, TX	7	120
Hockaday, Joel Gray	Tomball, TX	3	94
Jackson, Tance Alan	Plano, TX	1	16
Waddell, Kevin Karl	Houston, TX	6	136

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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
November 06, 2007	US,7290605,B2   US7290605B2	GRANTED PATENT AS SECOND PUBLICATION
October 20, 2005	US,20050230123,A1   US20050230123A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7290605

Seal receptacle using expandable liner hanger

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