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

Patent Owner(s)

• ENVENTURE GLOBAL TECHNOLOGY, LLC

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, OK	112	4182
Bullock, Michael	The Woodlands, TX	26	1463
Cook, Robert Lance	Katy, TX	130	4646
Ring, Lev	Houston, TX	188	5699

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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
May 16, 2006	US,7044221,B2   US7044221B2	GRANTED PATENT AS SECOND PUBLICATION
April 10, 2003	US,20030066655,A1   US20030066655A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7044221

Apparatus for coupling a tubular member to a preexisting structure

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