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

Patent Owner(s)

Patent Owner	Address
HOFFMANN-LA ROCHE INC	150 CLOVE ROAD OVERLOOK AT GREAT NOTCH SUITE 8 LITTLE FALLS NJ 07424

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CHEN, Dongdong	Shanghai, CN	51	107
CHEN, Wenming	Shanghai, CN	27	103
FENG, Song	Shanghai, CN	48	182
LI, Chao	Shanghai, CN	578	2383
QIU, Zongxing	Shanghai, CN	13	208
TAN, Xuefei	Shanghai, CN	58	242
WU, Guolong	Shanghai, CN	26	298

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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	Jun 8, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jun 8, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 8, 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: 2022/0388,969

SUBSTITUTED 3,4-DIHYDROQUINAZOLINE FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION

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