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

Patent Owner(s)

Patent Owner	Address
HIGH PERFORMANCE OPTICS INC	2840 HERSHBERGER ROAD SUITE A ROANOKE VA 24017

International Classification(s)

• G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Blum, Ronald D	Roanoke, US	317	14687
Ishak, Andrew W	Havre de Grace, US	16	1393
McGinnis, Sean P	Roanoke, US	13	949
Packard, Michael B	Cincinnati, US	14	1153

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 27, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 27, 2029

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
March 27, 2018	US,9927635,B2   US9927635B2	GRANTED PATENT AS SECOND PUBLICATION
June 16, 2016	US,20160170234,A1   US20160170234A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9927635

High performance selective light wavelength filtering providing improved contrast sensitivity

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