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

Patent Owner(s)

Patent Owner	Address
LIEBHERR-WERK NENZING GMBH	NENZING

International Classification(s)

• F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gassner, Christof	St. Gerold, AT	4	6
# of filed Patents : 4 Total Citations : 6
Kraeutler, Wilhelm	Koblach, AT	4	12
# of filed Patents : 4 Total Citations : 12

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Patent Citation Ranking

• 5 Citation Count
• F04B Class

• 4.86 % this patent is cited more than
• 13 Age

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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 Application No: 2012/0020,811

Fan Control

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Abstract

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The present disclosure relates to a hydraulic fan control circuit for a machine, in particular for a motor vehicle, a construction machine or a lifting device, with at least one hydraulic pump and at least one hydraulic motor for driving at least one fan, wherein the hydraulic motor driving torque of at least one hydraulic motor is controllable by adjusting the absorption volume.

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Description

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Claims

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