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

Patent Owner(s)

Patent Owner	Address
DAIICHI SANKYO COMPANY LIMITED	TOKYO 103-8426

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
KUWAHARA, Yasuhisa	Kanagawa, JP	3	0
NAKAJIMA, Takumi	Kanagawa, JP	8	0
SAKURAI, Tomohito	Kanagawa, JP	2	0
TORIYAMA, Fumihiko	Kanagawa, JP	4	0
WAKAYAMA, Masakazu	Kanagawa, JP	13	0

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Oct 27, 2028

Fee	Large entity fee	small entity fee	micro entity fee
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: 2017/0114,035

Method for Manufacturing Neuraminic Acid Derivatives

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