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Chutung Chen, Hsinchu Hsien, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Optical device for semiconductor based lamp
Patent number
9,322,526
Issue date
Apr 26, 2016
Pinecone Energies, Inc.
Keh Shium Liu
F21 - LIGHTING
Information
Patent Grant
Optical device for semiconductor based lamp
Patent number
9,052,082
Issue date
Jun 9, 2015
Pinecone Energies, Inc.
Keh Shium Liu
F21 - LIGHTING
Information
Patent Grant
Optical device for semiconductor based lamp
Patent number
8,390,017
Issue date
Mar 5, 2013
Pinecone Energies, Inc.
Keh Shium Liu
G02 - OPTICS
Information
Patent Grant
Optical device for semiconductor based lamp
Patent number
8,324,645
Issue date
Dec 4, 2012
Pinecone Energies, Inc.
Keh Shium Liu
F21 - LIGHTING
Information
Patent Grant
Two light intensities difference convert into frequency modulator f...
Patent number
5,821,528
Issue date
Oct 13, 1998
National Science Council
Tai Shan Liao
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Wafer polisher head used for chemical-mechanical polishing and endp...
Patent number
5,720,845
Issue date
Feb 24, 1998
Keh-Shium Liu
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL DEVICE FOR SEMICONDUCTOR BASED LAMP
Publication number
20140204579
Publication date
Jul 24, 2014
PINECONE ENERGIES, INC.
KEH SHIUM LIU
F21 - LIGHTING
Information
Patent Application
OPTICAL DEVICE FOR SEMICONDUCTOR BASED LAMP
Publication number
20130058084
Publication date
Mar 7, 2013
PINECONE ENERGIES, INC.
Keh Shium Liu
F21 - LIGHTING
Information
Patent Application
OPTICAL DEVICE FOR SEMICONDUCTOR BASED LAMP
Publication number
20120211790
Publication date
Aug 23, 2012
PINECONE ENERGIES, INC.
Keh Shium Liu
G02 - OPTICS
Information
Patent Application
OPTICAL DEVICE FOR SEMICONDUCTOR BASED LAMP
Publication number
20110140149
Publication date
Jun 16, 2011
Pinecone Energies, Inc.
Keh Shium Liu
F21 - LIGHTING
Information
Patent Application
OPTICAL DEVICE FOR SEMICONDUCTOR BASED LAMP
Publication number
20110140148
Publication date
Jun 16, 2011
Pinecone Energies, Inc.
Keh Shium Liu
G02 - OPTICS
Information
Patent Application
Lens Beam-Concentrating Device
Publication number
20100061118
Publication date
Mar 11, 2010
Keh-Shium LIU
G02 - OPTICS