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

Patent Owner(s)

Patent Owner	Address
CITY UNIVERSITY OF HONG KONG	KOWLOON
CENTRE FOR IMMUNOLOGY & INFECTION LIMITED	UNIT 1111-1113 11/F BUILDING 17W 17 SCIENCE PARK WEST AVENUE HONG KONG SCIENCE PARK SHATIN HONG KONG

International Classification(s)

• C25D:PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC ....
• A01N:PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLA....
• D06M:TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D0....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CHEN, Chang	Kowloon, HK	43	828
CHIN, Wing Hong	Shatin, HK	2	0
HENG, Yiyuan	Kowloon, HK	1	0
LIU, Yingxia	Kowloon, HK	2	0
POON, Lit Man	Shatin, HK	22	397
QU, Jin	Kowloon, HK	27	172
TU, King-Ning	Kowloon, HK	27	393

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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	Mar 14, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Mar 14, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Mar 14, 2035

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: 2023/0284,628

COPPER FILTER WITH FAST VIRUS KILLING ABILITY

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