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

Patent Owner(s)

Patent Owner	Address
STEK CO LTD	SEOUL

International Classification(s)

• B60J:WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR S....
• C09J:ADHESIVES; ADHESIVE PROCESSES IN GENERAL
• B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
• C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Lee, Changsuk	Seoul, KR	10	43
Oh, Inhwan	Seongnam-si, KR	37	171

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Jan 2, 2028
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jan 2, 2032
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jan 2, 2036

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
July 02, 2024	US,12023997,B2   US12023997B2	GRANTED PATENT AS SECOND PUBLICATION
April 06, 2023	US,20230108836,A1   US20230108836A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 12023997

Window film for vehicles including graphene

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