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

Patent Owner(s)

Patent Owner	Address
CLEARSIGN COMBUSTION CORPORATION	12870 INTERURBAN AVENUE SOUTH SEATTLE WA 98168

International Classification(s)

• F23M:CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT....
• F23C:METHODS OR APPARATUS FOR COMBUSTION USING FLUENT F....
• F23D:BURNERS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
COLANNINO, JOSEPH	BELLEVUE, US	125	3885
KARKOW, DOUGLAS W	DES MOINES, US	75	1401
WIKLOF, CHRISTOPHER A	EVERETT, US	333	10477

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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	Nov 25, 2024
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 25, 2028

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

Full Text

US Patent Application No: 2017/0146,232

BURNER SYSTEM INCLUDING A MOVEABLE PERFORATED FLAME HOLDER

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