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

Patent Owner(s)

Patent Owner	Address
TEIJIN LIMITED	2-4 NAKANOSHIMA 3-CHOME KITA-KU OSAKA-SHI OSAKA 5300005 ?5300005

International Classification(s)

• C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
• C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
MATSUI, Manabu	Osaka, JP	24	219
NUNOME, Kazunori	Osaka, JP	9	16
OGASAWARA, Kazuyoshi	Osaka, JP	35	222
OYAMA, Tatsuya	Osaka, JP	18	140
SATO, Keisuke	Osaka, JP	120	1093
YAMADA, Kyosuke	Osaka, JP	10	4
YANAGIDA, Takatsune	Osaka, JP	12	45

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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	Aug 16, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Aug 16, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 16, 2034

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

Full Text

US Patent Application No: 2023/0051,676

POLYCARBONATE AND METHOD FOR PRODUCING POLYCARBONATE

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