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Guangai Chen

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  • Xiamen, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    LED circuit with color temperature adjustment
    • Patent number 10,609,779
    • Issue date Mar 31, 2020
    • XIAMEN ECO LIGHTING CO. LTD.
    • Qiyuan Wang
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    LED circuit with color temperature adjustment
    • Patent number 10,206,261
    • Issue date Feb 12, 2019
    • XIAMEN ECO LIGHTING CO. LTD.
    • Qiyuan Wang
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Lighting apparatus
    • Patent number 9,967,943
    • Issue date May 8, 2018
    • XIAMEN ECO LIGHTING CO. LTD.
    • Qiyuan Wang
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    LIGHT BULB APPARATUS
    • Publication number 20240084979
    • Publication date Mar 14, 2024
    • XIAMEN LEEDARSON LIGHTING CO.,LTD
    • Mingnan Su
    • F21 - LIGHTING
  • Information Patent Application

    LIGHT BULB APPARATUS
    • Publication number 20210172571
    • Publication date Jun 10, 2021
    • XIAMEN LEEDARSON LIGHTING CO.,LTD
    • Mingnan Su
    • F21 - LIGHTING
  • Information Patent Application

    LED CIRCUIT WITH COLOR TEMPERATURE ADJUSTMENT
    • Publication number 20190132925
    • Publication date May 2, 2019
    • XIAMEN ECO LIGHTING CO. LTD.
    • Qiyuan Wang
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    LED CIRCUIT WITH COLOR TEMPERATURE ADJUSTMENT
    • Publication number 20180249547
    • Publication date Aug 30, 2018
    • XIAMEN ECO LIGHTING CO. LTD.
    • Qiyuan Wang
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR