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

Patent Owner(s)

Patent Owner	Address
LUMINUS DEVICES INC	1100 TECHNOLOGY PARK DRIVE BILLERICA MA 01821

International Classification(s)

• H01J:ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

• 2005 Application Filing Year
• H01J Class
• 2577 Applications Filed
• 1109 Patents Issued To-Date
• 43.04 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Erchak, Alexei A	Cambridge, MA	109	3220
# of filed Patents : 109 Total Citations : 3220
Lidorikis, Elefterios	Newton, MA	48	754
# of filed Patents : 48 Total Citations : 754
Luo, Chiyan	Woodside, NY	23	738
# of filed Patents : 23 Total Citations : 738

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Patent Citation Ranking

• 10 Citation Count
• H01J Class

• 3.19 % this patent is cited more than
• 18 Age

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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
November 27, 2007	US,7301271,B2   US7301271B2	GRANTED PATENT AS SECOND PUBLICATION
July 14, 2005	US,20050151125,A1   US20050151125A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7301271

Light-emitting devices with high light collimation

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Abstract

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Light-emitting devices, and related components, systems and methods are disclosed. In some embodiments, the devices (e.g., light-emitting diodes) comprise a multi-layer stack of materials including a light generating region and a first layer supported by the light generating region. The surface of the first layer may have a dielectric function that varies spatially according to a pattern. The pattern may be configured so that light that emerges from the device via the surface of the first layer is more collimated than a Lambertian distribution of light.

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Description

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Claims

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