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

Patent Owner(s)

Patent Owner	Address
TENACIA BIOTECHNOLOGY (HONG KONG) CO LIMITED	RM B3 19/F TUNG LEE COMM BLDG 91-97 JERVOIS ST SHEUNG WAN

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
• C07D:HETEROCYCLIC COMPOUNDS
• A61P:THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDI....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Khan, M Amin	Evanston, US	85	2069

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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	Aug 14, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Aug 14, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Aug 14, 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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
February 14, 2023	US,11578072,B2   US11578072B2	GRANTED PATENT AS SECOND PUBLICATION
February 11, 2021	US,20210040095,A1   US20210040095A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11578072

Spiro-lactam NMDA receptor modulators and uses thereof

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