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

Patent Owner(s)

Patent Owner	Address
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED	LEVEL 19 CHINA BUILDING 29 QUEEN'S ROAD CENTRAL CENTRAL CENTRAL AND WESTERN DISTRICT HONG KONG

International Classification(s)

• G21K:TECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNET....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
CHEN, Weigang	Ningde, CN	21	75
WANG, Qiangjun	Ningde, CN	5	0
WU, Qian	Ningde, CN	102	408
YAN, Liangjie	Ningde, CN	4	0
ZHAN, Bingyang	Ningde, CN	5	0
ZHANG, Jingdong	Ningde, CN	15	69
ZHEN, Zhihui	Ningde, CN	6	0

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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	Nov 9, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 9, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 9, 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: 2024/0153,665

COLLIMATOR, RADIOACTIVE SOURCE KIT, DETECTOR, SURFACE DENSITY GAUGE, APPARATUS, AND SYSTEM

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