Se Dae O

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Patents Grantslast 30 patents

Information Patent Grant
Natural lighting apparatus and hybrid illumination system using same
- Patent number 8,905,586
- Issue date Dec 9, 2014
- Se Dae O
- F21 - LIGHTING
Information Patent Grant
Condensing system of solar light for natural lighting
- Patent number 8,491,138
- Issue date Jul 23, 2013
- Nsnet Co., Ltd.
- Se Dae O
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
NATURAL LIGHTING APPARATUS AND HYBRID ILLUMINATION SYSTEM USING SAME
- Publication number 20120091897
- Publication date Apr 19, 2012
- Se Dae O
- F21 - LIGHTING
Information Patent Application
CONDENSING SYSTEM OF SOLAR LIGHT FOR NATURAL LIGHTING
- Publication number 20100243054
- Publication date Sep 30, 2010
- Se Dae O
- F24 - HEATING RANGES VENTILATING