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

Patent Owner(s)

Patent Owner	Address
7AC TECHNOLOGIES INC	92-94 CUMMINGS PARK WOBURN MA 01801

International Classification(s)

• F28D:HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTH....
• F28F:DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATU....
• F24F:AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION;....
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Allen, Mark	Essex, US	138	4516
Laflamme, Arthur	Rowley, US	8	283
Vandermeulen, Peter F	Newburyport, US	55	1779

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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	Jun 5, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 5, 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
December 05, 2017	US,9835340,B2   US9835340B2	GRANTED PATENT AS SECOND PUBLICATION
June 30, 2016	US,20160187008,A1   US20160187008A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9835340

Methods and systems for turbulent, corrosion resistant heat exchangers

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