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

Patent Owner(s)

Patent Owner	Address
NUOVO PIGNONE TECNOLOGIE S R L	ITALY FLORENCE

International Classification(s)

• F04D:NON-POSITIVE-DISPLACEMENT PUMPS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Mantellassi, Stefano	Lamporrecchio , IT	4	16
Tacconelli, Remo	Ponsacco , IT	3	18

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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
April 21, 2009	US,7520716,B2   US7520716B2	GRANTED PATENT AS SECOND PUBLICATION
July 19, 2007	US,20070166149,A1   US20070166149A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7520716

Vane system equipped with a guiding mechanism for centrifugal compressor

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