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

Patent Owner(s)

Patent Owner	Address
GEBR BECKER GMBH & CO	HOLKER FELD 29-31 A COMPANY OF FEDERAL REPUBLIC GERMANY WUPPERTAL 2 D-5600

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• Non-US Classification not provided for expired patents

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Frohn, Dieter	Wuppertal, DE	4	61
Hanitsch, Bernhard	Solingen, DE	2	67
Henning, Hans-Heinrich	Ennepetal, DE	7	74
Osenberg, Michael	Wuppertal, DE	1	31
Radtke, Detlef	Wuppertal, DE	2	49

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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

Full Text

US Patent No: D328304

Rotary fluid flow machine

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