CHI-TSENG CHANG

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TAOYUAN COUNTY, TW

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Patents Grantslast 30 patents

Information Patent Grant
Simple detachable illumination structure and lamp tube
- Patent number 8,556,463
- Issue date Oct 15, 2013
- Harvatek Corporation
- Bily Wang
- F21 - LIGHTING
Information Patent Grant
Lamp head assembly and lighting lamp tube
- Patent number 8,398,275
- Issue date Mar 19, 2013
- Harvatek Corporation
- Bily Wang
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
LAMP HEAD ASSEMBLY AND LIGHTING LAMP TUBE
- Publication number 20120069583
- Publication date Mar 22, 2012
- HARVATEK CORPORATION
- BILY WANG
- F21 - LIGHTING
Information Patent Application
SIMPLE DETACHABLE ILLUMINATION STRUCTURE AND LAMP TUBE
- Publication number 20120014087
- Publication date Jan 19, 2012
- HARVATEK CORPORATION
- BILY WANG
- F21 - LIGHTING