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

Patent Owner(s)

• CONOCOPHILLIPS COMPANY

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Eller, John G	Anchorage, US	5	14
Gantt, Lamar L	Anchorage, US	5	120
Hearn, David D	Houston, US	30	536
Venhaus, Dan E	Chugiak, US	4	20

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Dec 21, 2023
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 21, 2027

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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 21, 2016	US,9371694,B2   US9371694B2	GRANTED PATENT AS SECOND PUBLICATION
December 09, 2010	US,20100307736,A1   US20100307736A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9371694

Permanent bypass whipstock assembly for drilling and completing a sidetrack well and preserving access to the original wellbore

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