XI-JUAN LUO

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Zhengzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Housing assembly and electronic device using same
- Patent number 11,357,115
- Issue date Jun 7, 2022
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- Zhen-Hai Mei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Waterproof button and electronic device using same
- Patent number 9,859,072
- Issue date Jan 2, 2018
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- Yu-Jie Rong
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEL-REPORTING MONITOR FOR INTEGRITY AND CONDITIONS OF MANHOLE COVER
- Publication number 20230134011
- Publication date May 4, 2023
- Zhengzhou Wanmayun Electronic Technology CO.,Ltd.
- HONG LIU
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
HOUSING ASSEMBLY AND ELECTRONIC DEVICE USING SAME
- Publication number 20210204415
- Publication date Jul 1, 2021
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- ZHEN-HAI MEI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WATERPROOF BUTTON AND ELECTRONIC DEVICE USING SAME
- Publication number 20170287656
- Publication date Oct 5, 2017
- HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.
- YU-JIE RONG
- H01 - BASIC ELECTRIC ELEMENTS