Tzu Jen MAO

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New Taipei City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Handheld singing apparatus
- Patent number 9,159,309
- Issue date Oct 13, 2015
- Ozaki International Co., Ltd.
- Keng-Yuan Liu
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Protective shell applicable to a handheld electric apparatus
- Patent number 8,720,683
- Issue date May 13, 2014
- Ozaki International Co., Ltd.
- Tzu Jen Mao
- A45 - HAND OR TRAVELLING ARTICLES

Patents Applicationslast 30 patents

Information Patent Application
HANDHELD SINGING APPARATUS
- Publication number 20150075356
- Publication date Mar 19, 2015
- Keng-Yuan LIU
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Protective Shell Applicable to a Handheld Electric Apparatus
- Publication number 20140061087
- Publication date Mar 6, 2014
- Tzu Jen MAO
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL