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

Patent Owner(s)

Patent Owner	Address
SHIONOGI & CO LTD	OSAKA-SHI OSAKA 541-0045

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ikarashi, Fumiya	Osaka, JP	9	34
Masui, Moriyasu	Osaka, JP	36	315
Okamoto, Kazuya	Osaka, JP	172	3229
Sumino, Yukihito	Osaka, JP	11	106
Yamada, Diasuke	Osaka, JP	4	34

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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	Apr 30, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Apr 30, 2029

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
October 31, 2017	US,9802959,B2   US9802959B2	GRANTED PATENT AS SECOND PUBLICATION
August 24, 2017	US,20170240564,A1   US20170240564A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9802959

Method of producing (4R,12aS)-7,9-dihalo-4-methyl-3,4,12,12a-tetrahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazine-6,8-diones

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