JianFei Ying

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Ningbo, CN

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Patents Grantslast 30 patents

Information Patent Grant
Solar lamp
- Patent number D890401
- Issue date Jul 14, 2020
- ZHEJIANG TWINSEL ELECTRONIC TECHNOLOGY CO., LTD.
- Xueren Zeng
- D26 - Lighting

Patents Applicationslast 30 patents

Information Patent Application
ON-OFF DIMMING AND COLOR-FIXING LAMP
- Publication number 20190226647
- Publication date Jul 25, 2019
- ZheJiang Twinsel Electronic Technology Co.,Ltd.
- XueRen Zeng
- F21 - LIGHTING