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

Patent Owner(s)

Patent Owner	Address
HERITAGE RESEARCH GROUP LLC	6320 INTECH WAY INDIANAPOLIS IN 46278

International Classification(s)

• C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kriech, Anthony J	Indianapolis, US	40	151
Rogers, Anthony	Brownsburg, US	23	303
Roper,, JR Ralph E	Carmel, US	8	12
Vargas, Carina	Greenwood, US	1	0

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Aug 24, 2025
7.5 Year Payment	$3600.00	$1800.00	$900.00	Aug 24, 2029
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 24, 2033

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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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: 2022/0055,931

METHODS OF REDUCING CALCITE FORMATION AND SOLUBILIZED METALS FROM AQUEOUS EFFLUENT STREAMS

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