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

Patent Owner(s)

Patent Owner	Address
INSTITUTE OF OCCUPATIONAL SAFETY AND HEALTH COUCIL OF LABOR AFFAIRS	NO 99 LANE 407 HENGKE RD SHIJR CITY TAIPEI 221 R O C

International Classification(s)

• B08B:CLEANING IN GENERAL; PREVENTION OF FOULING IN GENE....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chang, Cheng-Ping	Shijr, TW	25	133
Chen, Chun-Wan	Shijr, TW	5	49
Chen, Hung-Ta	Taipei, TW	15	60
Chen, Yu-Kang	Guelren Township, Tainan County, TW	4	46
Huang, Rong Fung	Taipei, TW	13	86
Shih, Tung-Sheng	Shijr, TW	22	127
Wu, Yi-Ta	Taipei, TW	22	266

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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
January 15, 2008	US,7318771,B2   US7318771B2	GRANTED PATENT AS SECOND PUBLICATION
January 25, 2007	US,20070021047,A1   US20070021047A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7318771

Air-isolator fume hood

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