Wentian YU

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Hangzhou, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Working light
- Patent number 10,036,518
- Issue date Jul 31, 2018
- HANGZHOU GREAT STAR TOOLS CO., LTD
- Wentian Yu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Working light
- Patent number 9,534,748
- Issue date Jan 3, 2017
- HANGZHOU GREAT STAR TOOLS CO., LTD
- Wentian Yu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
WORKING LIGHT
- Publication number 20170074469
- Publication date Mar 16, 2017
- HANGZHOU GREAT STAR TOOLS CO., LTD.
- Wentian Yu
- F21 - LIGHTING
Information Patent Application
WORKING LIGHT
- Publication number 20160003426
- Publication date Jan 7, 2016
- HANGZHOU GREAT STAR TOOLS CO., LTD.
- Wentian YU
- F21 - LIGHTING