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

Patent Owner(s)

Patent Owner	Address
NATIONAL RESEARCH COUNCIL OF CANADA	OTTAWA

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Blanchetiere, Chantal	Ottawa, CA	3	71
Callender, Claire	Nepean, CA	2	52
Cuglietta, Gino	Kanata, CA	6	73
Dai, Xiaoli	Ottawa, CA	13	193
Ding, Huimin	Nepean, CA	22	214
Grobnic, Dan	Ottawa, CA	22	207
Lu, Ping	Ottawa, CA	97	984
Mihailov, Stephen J	Kanata, CA	20	414
Smelser, Christopher W	Ottawa, CA	7	97
Walker, Robert B	Spencerville, CA	20	195

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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
July 28, 2009	US,7567734,B2   US7567734B2	GRANTED PATENT AS SECOND PUBLICATION
February 12, 2009	US,20090041405,A1   US20090041405A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7567734

Ridge waveguide optical sensor incorporating a Bragg grating

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