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I Chang Chang
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Chong Ho City, TW
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Patents Grants
last 30 patents
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Patent Grant
Automatic detecting and switching vehicle charger
Patent number
6,650,086
Issue date
Nov 18, 2003
I-Chang Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electric energy source having safety control device
Patent number
6,531,789
Issue date
Mar 11, 2003
Iwei Technology Co., Ltd.
I Chang Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
NON-POLARITY CHARGING DEVICE
Publication number
20060055368
Publication date
Mar 16, 2006
I-Chang Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Jumper cable apparatus having a protective device
Publication number
20030100216
Publication date
May 29, 2003
I Chang Chang
H01 - BASIC ELECTRIC ELEMENTS