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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)

• 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

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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	Sep 6, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 6, 2029

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
March 06, 2018	US,9909757,B2   US9909757B2	GRANTED PATENT AS SECOND PUBLICATION
May 21, 2015	US,20150140498,A1   US20150140498A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9909757

Low NOx burner and method of operating a low NOx burner

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