Wan Ho Oh

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Daejeon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Multi-sectioned, billboard-mounted light-emitting device
- Patent number 9,135,840
- Issue date Sep 15, 2015
- Wan Ho Oh
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Detachable light emitting device using light emitting diode modules
- Patent number 8,992,065
- Issue date Mar 31, 2015
- Wan Ho Oh
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
DETACHABLE LIGHT EMITTING DEVICE USING LIGHT EMITTING DIODE MODULES
- Publication number 20130083559
- Publication date Apr 4, 2013
- Wan Ho Oh
- G02 - OPTICS
Information Patent Application
MULTI-SECTIONED, BILLBOARD-MOUNTED LIGHT-EMITTING DEVICE
- Publication number 20130063970
- Publication date Mar 14, 2013
- Wan Ho Oh
- G02 - OPTICS