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Yongchuan Li

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  • Smyrna, GA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Light device control apparatus
    • Patent number 11,521,806
    • Issue date Dec 6, 2022
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Light apparatus
    • Patent number 11,486,549
    • Issue date Nov 1, 2022
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    LED light bulb
    • Patent number 11,262,027
    • Issue date Mar 1, 2022
    • XIAMEN ECO LIGHTING CO., LTD.
    • Chenjun Wu
    • F21 - LIGHTING
  • Information Patent Grant

    Retrofit switch
    • Patent number 11,056,289
    • Issue date Jul 6, 2021
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Light device control apparatus
    • Patent number 11,017,962
    • Issue date May 25, 2021
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Light apparatus
    • Patent number 10,920,936
    • Issue date Feb 16, 2021
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    Driver circuit for controlling brightness of light-emitting diode u...
    • Patent number 10,904,964
    • Issue date Jan 26, 2021
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Spotlight apparatus and manufacturing method thereof
    • Patent number 10,774,994
    • Issue date Sep 15, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    LED light bulb
    • Patent number 10,738,946
    • Issue date Aug 11, 2020
    • XIAMEN ECO LIGHTING CO., LTD.
    • Chenjun Wu
    • F21 - LIGHTING
  • Information Patent Grant

    Light apparatus
    • Patent number 10,670,195
    • Issue date Jun 2, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    PWM signal generating system and light device driving system
    • Patent number 10,667,352
    • Issue date May 26, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Lighting apparatus
    • Patent number 10,619,806
    • Issue date Apr 14, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    Retrofit switch
    • Patent number 10,614,972
    • Issue date Apr 7, 2020
    • LEEDARSON AMERICAN INC.
    • Yongchuan Li
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Retrofit switch
    • Patent number 10,614,975
    • Issue date Apr 7, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Light device driving system
    • Patent number 10,595,378
    • Issue date Mar 17, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Retrofit switch
    • Patent number 10,446,339
    • Issue date Oct 15, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Lighting apparatus
    • Patent number 10,400,965
    • Issue date Sep 3, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • G02 - OPTICS
  • Information Patent Grant

    Optical apparatus
    • Patent number 10,344,961
    • Issue date Jul 9, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    Light apparatus
    • Patent number 10,330,263
    • Issue date Jun 25, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    Assembly light apparatus
    • Patent number 10,323,806
    • Issue date Jun 18, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Grant

    LED apparatus
    • Patent number 10,274,157
    • Issue date Apr 30, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING

Patents Applicationslast 30 patents

  • Information Patent Application

    LIGHT DEVICE CONTROL APPARATUS
    • Publication number 20210249201
    • Publication date Aug 12, 2021
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    LIGHT APPARATUS
    • Publication number 20210140590
    • Publication date May 13, 2021
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    LED LIGHT BULB
    • Publication number 20200340629
    • Publication date Oct 29, 2020
    • XIAMEN ECO LIGHTING CO. LTD.
    • Chenjun Wu
    • F21 - LIGHTING
  • Information Patent Application

    LIGHT APPARATUS
    • Publication number 20200240592
    • Publication date Jul 30, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    RETROFIT SWITCH
    • Publication number 20200194194
    • Publication date Jun 18, 2020
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    LED LIGHT BULB
    • Publication number 20200049315
    • Publication date Feb 13, 2020
    • Xiamen Eco Lighting Co., Ltd.
    • Chenjun Wu
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    LIGHT DEVICE CONTROL APPARATUS
    • Publication number 20190393002
    • Publication date Dec 26, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    LIGHTING APPARATUS
    • Publication number 20190338903
    • Publication date Nov 7, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • G02 - OPTICS
  • Information Patent Application

    LIGHT APPARATUS
    • Publication number 20190271444
    • Publication date Sep 5, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    ADJUSTABLE LIGHT APPARATUS
    • Publication number 20190268991
    • Publication date Aug 29, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    PWM SIGNAL GENERATING SYSTEM AND LIGHT DEVICE DRIVING SYSTEM
    • Publication number 20190239304
    • Publication date Aug 1, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Application

    DRIVER CIRCUIT FOR CONTROLLING BRIGHTNESS OF LIGHT-EMITTING DIODE U...
    • Publication number 20190239303
    • Publication date Aug 1, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    LIGHT DEVICE DRIVING SYSTEM
    • Publication number 20190239312
    • Publication date Aug 1, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    RETROFIT SWITCH
    • Publication number 20190228923
    • Publication date Jul 25, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LED APPARATUS
    • Publication number 20190211993
    • Publication date Jul 11, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    RETROFIT SWITCH
    • Publication number 20190139719
    • Publication date May 9, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    RETROFIT SWITCH
    • Publication number 20190131081
    • Publication date May 2, 2019
    • Leedarson America Inc.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    RETROFIT SWITCH
    • Publication number 20190131083
    • Publication date May 2, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    RETROFIT SWITCH
    • Publication number 20190131082
    • Publication date May 2, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    OPTICAL APPARATUS
    • Publication number 20190056097
    • Publication date Feb 21, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    SPOTLIGHT APPARATUS AND MANUFACTURING METHOD THEREOF
    • Publication number 20190056071
    • Publication date Feb 21, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    LED APPARATUS
    • Publication number 20190056085
    • Publication date Feb 21, 2019
    • LEEDARSON AMERICA INC.
    • Yongchuan Li
    • F21 - LIGHTING
  • Information Patent Application

    LIGHT APPARATUS
    • Publication number 20180245744
    • Publication date Aug 30, 2018
    • Leedarson America Inc.
    • Yongchuan Li
    • F21 - LIGHTING