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

Patent Owner(s)

Patent Owner	Address
ET US HOLDINGS LLC	CORPORATION TRUST CENTER 1209 ORANGE STREET WILMINGTON DE 19801

International Classification(s)

• F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Crawley, Wilbur H	Columbus, US	28	498
Johnson, Randall J	Seymour, US	20	249
Kong, Yougen	Greenwood, US	8	112
Taylor,, III William	Columbus, US	1	22

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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
March 30, 2010	US,7685811,B2   US7685811B2	GRANTED PATENT AS SECOND PUBLICATION
July 14, 2005	US,20050153250,A1   US20050153250A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7685811

Method and apparatus for controlling a fuel-fired burner of an emission abatement assembly

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