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

Patent Owner(s)

Patent Owner	Address
RICHWAVE TECHNOLOGY CORP	TAIPEI CITY 114

International Classification(s)

• H01P:WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF ....

• 2008 Application Filing Year
• H01P Class
• 462 Applications Filed
• 259 Patents Issued To-Date
• 56.07 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Wu, Han-Hao	Taipei, TW	1	8
# of filed Patents : 1 Total Citations : 8

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Patent Citation Ranking

• 8 Citation Count
• H01P Class

• 3.86 % this patent is cited more than
• 17 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: 2008/0309,435

NOISE FILTER

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Abstract

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A noise filter connected to an LC oscillator is provided. The noise filter comprises a transmission line, a DC bias circuit, and a capacitor. The transmission line is connected to the LC oscillator. The DC bias circuit is connected to the transmission line and provides a bias current. The capacitor has one end connected between the transmission line and the DC bias circuit and the other end AC grounded and provides a path to AC ground to the transmission line. A length of the transmission line is odd times that of a quarter-wavelength of a secondary harmonic wave of the LC oscillator.

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Description

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Claims

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