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Cheng-Chien Wang
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Taichung Hsien, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Cooling fan
Patent number
8,016,559
Issue date
Sep 13, 2011
Tek-Chain Technology Co., Ltd.
Cheng-Chien Wang
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Angle adjusting device
Patent number
4,614,452
Issue date
Sep 30, 1986
Cheng H. Wang
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
Cooling fan
Publication number
20100006271
Publication date
Jan 14, 2010
TEK-CHAIN TECHNOLOGY CO., LTD.
Cheng-Chien Wang
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
PROTECTION DEVICE OF THE DRIVE MECHANISM OF A CLOCK
Publication number
20040012278
Publication date
Jan 22, 2004
Cheng-Te Wang
G04 - HOROLOGY