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

Patent Owner(s)

Patent Owner	Address
CLARK DAVID J	TACOMA WA

International Classification(s)

• F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
• G01J:MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTE....
• A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
• A61C:DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL....
• G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Clark, David J	Lakewood, US	53	781

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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
September 25, 2012	US,8272868,B2   US8272868B2	GRANTED PATENT AS SECOND PUBLICATION
March 13, 2008	US,20080064000,A1   US20080064000A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8272868

Dental curing lights and a seamless, single load cavity preparation and filling technique

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