Wei-En Chien

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Chiayi City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Light-emitting semiconductor device having enhanced brightness
- Patent number RE44429
- Issue date Aug 13, 2013
- Epistar Corporation
- Wei-En Chien
- 257 - Active solid-state devices
Information Patent Grant
Light-emitting semiconductor device having enhanced brightness
- Patent number 6,958,496
- Issue date Oct 25, 2005
- United Epitaxy Company, Ltd.
- Wei-En Chien
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT-EMITTING DEVICE HAVING REFLECTING LAYER FORMED UNDER ELECTRODE
- Publication number 20050156183
- Publication date Jul 21, 2005
- Tzong-Liang Tsai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Light-emitting semiconductor device having enhanced brightness
- Publication number 20050082555
- Publication date Apr 21, 2005
- UNITED EPITAXY COMPANY, LTD
- Wei-En Chien
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT-EMITTING DEVICE
- Publication number 20050072968
- Publication date Apr 7, 2005
- Tzong-Liang Tsai
- H01 - BASIC ELECTRIC ELEMENTS