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

Patent Owner(s)

Patent Owner	Address
PAX SCIENTIFIC INC	P O BOX 150840 SAN RAFAEL CA 94915-0840

International Classification(s)

• F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....
• F15C:FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMP....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Harman, Jayden David	San Rafael, US	33	507
# of filed Patents : 33 Total Citations : 507

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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
January 12, 2010	US,7644804,B2   US7644804B2	GRANTED PATENT AS SECOND PUBLICATION
February 21, 2008	US,20080041474,A1   US20080041474A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7644804

Sound attenuator

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Abstract

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A fluid pathway is provided with a flow controller in at least a portion of its length wherein the flow controller comprises an active surface capable of influencing the fluid flow through the fluid pathway, the configuration of the active surface conforming to at least one logarithmic curve conforming to the Golden Section.

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Description

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Claims

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