CHEN-YUAN CHENG

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Keelung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Safety socket to prevent electric shock
- Patent number 11,316,298
- Issue date Apr 26, 2022
- Dongguan Keben Electrical appliance Co., Ltd.
- Sheng Ding
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Safety socket
- Patent number 10,985,490
- Issue date Apr 20, 2021
- Dongguan Keben Electrical appliance Co., Ltd.
- Sheng Ding
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Safety socket with means to prevent electric shock and electrical d...
- Patent number 10,243,296
- Issue date Mar 26, 2019
- Hung Shang Co., Ltd.
- Chen-Yuan Cheng
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SAFETY SOCKET
- Publication number 20180198229
- Publication date Jul 12, 2018
- HUNG SHANG CO., LTD
- CHEN-YUAN CHENG
- H01 - BASIC ELECTRIC ELEMENTS