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

Patent Owner(s)

Patent Owner	Address
WELLS FARGO BANK NATIONAL ASSOCIATION	1525 WEST W T HARRIS BLVD CHARLOTTE NC 28262

International Classification(s)

• E21B:EARTH OR ROCK DRILLING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bartel, Roger P	Spring, US	16	545
Mauldin, Charles Lee	Spring, US	7	84

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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	Apr 16, 2026
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 16, 2030

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
October 16, 2018	US,10100630,B2   US10100630B2	GRANTED PATENT AS SECOND PUBLICATION
August 13, 2015	US,20150226050,A1   US20150226050A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2015/0226,050

Method and Apparatus for Communicating Incremental Depth and/or Other Useful Data of a Downhole Tool

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