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

Patent Owner(s)

Patent Owner	Address
BESST INC	SAN RAFAEL CA

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Heller, Noah R	Corte Madera, US	18	200
Moritzburke, Peter F	Corte Madera, US	8	44

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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
April 05, 2011	US,7918282,B2   US7918282B2	GRANTED PATENT AS SECOND PUBLICATION
February 25, 2010	US,20100044051,A1   US20100044051A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7918282

Zone isolation assembly array and method for isolating a plurality of fluid zones in a subsurface well

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