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classificationCode:"ipc:F21V"

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    GU JAE HEON | European Patent Office | 2017

    1 1-cell type traffic light device using multi-color LED

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    JUNG WON HYOUNG | European Patent Office | 2023

    2 LED Street lamp having secondary traffic accident prevention system

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    HAN MYOUNG IL | European Patent Office | 2020

    2 Safety kit device for second accident prevention of vehicle

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    JEONG BOK SOON / YOON YE RA / LEE JEONGEUN | European Patent Office | 2021

    2 Safety rod for preventing secondary accidents in vehicles

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    JEONG BOK SOON / YOON YE RA / LEE JEONGEUN | European Patent Office | 2021

    2 Secondary accident prevention system using silicon lighting

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    SHIN DAE RO | European Patent Office | 2019

    2 Smart streetlight for a secondary accident prevention

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    HAN MOON IL / OH SEUNG HYUN | European Patent Office | 2019