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Charter Media (Dongguan) CO. Ltd.
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Dongguan City, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Jack for preventing headphone from inputting double audio sources
Patent number
9,462,367
Issue date
Oct 4, 2016
CHARTER MEDIA(DONGGUAN) CO.,LTD
Siu Chung Yeung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
WIRELESS BLUETOOTH EARPHONE COMPRISING REPLACEABLE BATTERY
Publication number
20250071467
Publication date
Feb 27, 2025
Charter Media (Dongguan) Co., Ltd.
Juheng HU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Low-loss wireless stereo Bluetooth earphones
Publication number
20170257692
Publication date
Sep 7, 2017
Charter Media (Dongguan) Co., Ltd.
Shaocong Yang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IN-EAR HEADPHONES WITH NOISE REDUCTION EFFECT
Publication number
20160293156
Publication date
Oct 6, 2016
Charter Media (Dongguan) CO. Ltd.
Shao-Cong YANG
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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