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

Patent Owner(s)

Patent Owner	Address
S A LHOIST RECHERCHE ET DEVELOPPEMENT	1342 OTTIGNIES-LOUVAIN-LA-NEUVE

International Classification(s)

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

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Judenne, Eric	Paris , FR	4	6
Remy, Marc	Nil-saint-martin , BE	2	4
Rohmann, Matthias	Bad Sachsa , DE	5	3

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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 08, 2009	US,7628925,B2   US7628925B2	GRANTED PATENT AS SECOND PUBLICATION
July 06, 2006	US,20060144799,A1   US20060144799A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7628925

Method of dewatering sludge and the sludge thus dewatered

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