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

Patent Owner(s)

• SUPERNUS PHARMACEUTICALS, INC.

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bhatt, Padmanabh P	Rockville, US	66	581
Ibrahim, Scott	Owings Mills, US	4	177
Liang, Likan	Boyds, US	40	491
Shah, Niraj	Owings Mills, US	20	391

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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	Jun 3, 2025

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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
December 03, 2013	US,8598191,B2   US8598191B2	GRANTED PATENT AS SECOND PUBLICATION
September 13, 2012	US,20120231085,A1   US20120231085A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8598191

Controlled release compositions of gamma-hydroxybutyrate

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