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

Patent Owner(s)

Patent Owner	Address
INC AMGEN	ONE AMGEN CENTER DRIVE THOUSAND OAKS CA 91320-1799

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Allen, Jennifer R	Newbury Park, US	57	505
Chen, Jian J	Camarillo, US	74	1665
Frohn, Michael J	Thousand Oaks, US	46	387
Harrington, Essa Hu	Camarillo, US	12	40
Liu, Qingyian	Camarillo, US	66	591
Pickrell, Alexander J	Westlake Village, US	38	337
Rumfelt, Shannon	Camarillo, US	24	366
Rzasa, Robert M	Ventura, US	45	717
Zhong, Wenge	Thousand Oaks, US	57	246

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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	Jan 31, 2026

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: 2014/0213,572

UNSATURATED NITROGEN HETEROCYCLIC COMPOUNDS USEFUL AS PDE10 INHIBITORS

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