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

Patent Owner(s)

• M2S, INC.

International Classification(s)

• A61B:DIAGNOSIS; SURGERY; IDENTIFICATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, David T	12 Sunset Rd., Somerville, MA 02144	45	2989
McKenna, Michael A	232 Broadway, Cambridge, MA 02139	21	2008
Pieper, Steven D	Gove Hill Rd., Thetford Center, VT 05075	24	2286

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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
February 10, 2004	US,6690960,B2   US6690960B2	GRANTED PATENT AS SECOND PUBLICATION
February 13, 2003	US,20030029464,A1   US20030029464A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6690960

Video-based surgical targeting system

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