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

Patent Owner(s)

Patent Owner	Address
WETEND TECHNOLOGIES OY	57600 SAVONLINNA
VALMET TECHNOLOGIES OY	KEILASATAMA 5 ESPOO 02150

International Classification(s)

• D21B:FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMEN....
• D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
• D21F:PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER ....
• B01F:MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
MÄKINEN, Jari	Jamsa, FI	11	92
MATULA, Jouni	Savonlinna, FI	34	252
MATULA, Jussi	Savonlinna, FI	8	62

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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 30, 2028
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 30, 2032

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: 2020/0407,913

METHOD OF AND AN ARRANGEMENT FOR ADDING A CHEMICAL TO AN APPROACH FLOW SYSTEM OF A FIBER WEB MACHINE

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