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

Patent Owner(s)

Patent Owner	Address
OPTOMETRIC TECHNOLOGY GROUP LTD	42 VAUXHALL BRIDGE ROAD PIMLICO LONDON SW1V 2RX

International Classification(s)

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

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Guillon, Michel	London, GB	20	878
Maissa, Cecile Adrienne	London, GB	8	169

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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
May 01, 2012	US,8167427,B2   US8167427B2	GRANTED PATENT AS SECOND PUBLICATION
April 26, 2007	US,20070091260,A1   US20070091260A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8167427

Multifocal contact lenses manufactured from a responsive polymer gel

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