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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
Brisco, David Paul	Duncan, US	112	4204
Bullock, Michael	Houston, US	26	1464
Cook, Robert Lance	Katy, US	134	4674
Costa, Scott	Kingwood, US	40	614
Hockaday, Joel	Tomball, US	7	105
Jackson, Tance	Plano, US	12	482
Kendziora, Larry	Needville, US	13	220
Ring, Lev	Houston, US	188	5787
Waddell, Kevin K	Houston, US	33	662

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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 22, 2010	US,7740076,B2   US7740076B2	GRANTED PATENT AS SECOND PUBLICATION
May 04, 2006	US,20060090902,A1   US20060090902A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7740076

Protective sleeve for threaded connections for expandable liner hanger

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