Ruifang Ma

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Xiamen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Light cap electrical connection structure
- Patent number 10,186,793
- Issue date Jan 22, 2019
- LEEDARSON LIGHTING CO. LTD.
- Xiaobo Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bulb apparatus
- Patent number 9,966,718
- Issue date May 8, 2018
- XIAMEN LEEDARSON LIGHTING GROUP CO., LTD.
- Xiaobo Chen
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
LIGHT CAP ELECTRICAL CONNECTION STRUCTURE
- Publication number 20170373412
- Publication date Dec 28, 2017
- LEEDARSON LIGHTING CO. LTD.
- Xiaobo Chen
- F21 - LIGHTING
Information Patent Application
BULB APPARATUS
- Publication number 20160380400
- Publication date Dec 29, 2016
- XIAMEN LEE BROTHERS CO. LTD.
- Xiaobo Chen
- F21 - LIGHTING