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

Patent Owner(s)

Patent Owner	Address
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK	535 116TH WEST STREET NEW YORK CITY NEW YORK 10027 UNITED STATES NEW YORK CITY NEW YORK

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Overvig, Adam	Bronx, US	8	33
Shrestha, Sajan	New York, US	8	18
Yu, Nanfang	Fort Lee, US	25	372

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 26, 2027
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 26, 2031

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

Full Text

US Patent Application No: 2020/0096,672

BROADBAND ACHROMATIC FLAT OPTICAL COMPONENTS BY DISPERSION-ENGINEERED DIELECTRIC METASURFACES

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