Liang-Chih Cheng

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New Taipei City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Clip-on transceiver microphone
- Patent number 9,407,980
- Issue date Aug 2, 2016
- Liang-Chih Cheng
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Key type wiring connection switch
- Patent number 8,574,016
- Issue date Nov 5, 2013
- Liang-Chih Cheng
- Liang-Chih Cheng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Easy-mount in-ceiling speaker mount
- Patent number 8,485,487
- Issue date Jul 16, 2013
- Liang-Chih Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SCREWLESS TERMINAL BLOCK
- Publication number 20140256170
- Publication date Sep 11, 2014
- Liang-Chih Cheng
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MICROPHONE THAT IS WORN ON A PAIR OF EYEGLASSES
- Publication number 20130163802
- Publication date Jun 27, 2013
- Liang-Chih Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
EASY-MOUNT IN-CEILING SPEAKER MOUNT
- Publication number 20120292458
- Publication date Nov 22, 2012
- Liang-Chih Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE