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New Taipei, TW
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last 30 patents
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Patent Grant
Audio device and portable electronic device
Patent number
9,241,219
Issue date
Jan 19, 2016
Chiun Mai Communication Systems, Inc.
Wei-Rung Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
PORTABLE ELECTRONIC DEVICE INTEGRATED WITH EXTENDABLE AND RETRACTAB...
Publication number
20160337494
Publication date
Nov 17, 2016
Chiun Mai Communication Systems, Inc.
PEI-SHUANG HUANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PORTABLE ELECTRONIC DEVICE
Publication number
20150055003
Publication date
Feb 26, 2015
Chiun Mai Communication Systems, Inc.
WEI-RUNG CHEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUDIO DEVICE AND PORTABLE ELECTRONIC DEVICE
Publication number
20140369540
Publication date
Dec 18, 2014
Chiun Mai Communication Systems, Inc.
WEI-RUNG CHEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE