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

Patent Owner(s)

Patent Owner	Address
MASSACHUSETTS INSTITUTE OF TECHNOLOGY	77 MASSACHUSETTS AVENUE CAMBRIDGE MA 02139

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Assefa, Solomon	Cambridge, MA	96	1503
Bienstman, Peter	Gent, BE	15	88
Erchak, Alexei A	Cambridge, MA	109	3220
Joannopoulos, John D	Belmont, MA	165	28346
Johnson, Steven G	St. Charles, IL	50	2042
Kolodziejski, Leslie A	Belmont, MA	6	115
Petrich, Gale S	Arlington, MA	7	154

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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 04, 2006	US,7072547,B2   US7072547B2	GRANTED PATENT AS SECOND PUBLICATION
June 10, 2004	US,20040109644,A1   US20040109644A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7072547

Waveguide coupling into photonic crystal waveguides

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