Yunfei Xu

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Theftproof lamp
- Patent number 9,746,158
- Issue date Aug 29, 2017
- Philips Lighting Holding B.V.
- Yunfei Xu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
THEFTPROOF LAMP
- Publication number 20140204596
- Publication date Jul 24, 2014
- Koninklijke Philips N.V.
- Yunfei Xu
- F21 - LIGHTING