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

Patent Owner(s)

Patent Owner	Address
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY	KITA 8-JYO NISHI 5-CHOME KITA-KU SAPPORO-SHI HOKKAIDO 0600808 ?0600808

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS
• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
• C07J:STEROIDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
MATSUNAGA, Shigeki	Sapporo-shi, Hokkaido, JP	49	482
MATSUOKA, Keitaro	Sapporo-shi, Hokkaido, JP	1	0
OGAWA, Mikako	Sapporo-shi, Hokkaido, JP	5	10
YOSHINO, Tatsuhiko	Sapporo-shi, Hokkaido, JP	1	0

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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	May 10, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	May 10, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	May 10, 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: 2022/0356,205

METHOD FOR PRODUCING AROMATIC ASTATINE COMPOUND

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