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Xiamen, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Light bulb apparatus having a twisted LED filament for improved lum...
Patent number
11,231,147
Issue date
Jan 25, 2022
XIAMEN LEEDARSON LIGHTING CO., LTD
Liangliang Cao
F21 - LIGHTING
Information
Patent Grant
LED filament assembly and lamp including the same
Patent number
11,217,568
Issue date
Jan 4, 2022
XIAMEN ECO LIGHTING CO. LTD.
Yanbiao Chen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
LED filament assembly and lamp including the same
Patent number
11,018,119
Issue date
May 25, 2021
XIAMEN ECO LIGHTING CO. LTD.
Yanbiao Chen
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
LED Filament Assembly and Lamp Including the Same
Publication number
20210249387
Publication date
Aug 12, 2021
XIAMEN ECO LIGHTING CO. LTD.
Yanbiao CHEN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT BULB APPARATUS
Publication number
20210215301
Publication date
Jul 15, 2021
XIAMEN LEEDARSON LIGHTING CO.,LTD
Liangliang Cao
F21 - LIGHTING
Information
Patent Application
LED Filament Assembly and Lamp Including the Same
Publication number
20200212014
Publication date
Jul 2, 2020
XIAMEN ECO LIGHTING CO. LTD.
Yanbiao CHEN
H01 - BASIC ELECTRIC ELEMENTS