Chong ZHANG

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Sealing device and underwater machinery equipment
- Patent number 12,155,186
- Issue date Nov 26, 2024
- QINGDAO QIYUAN CXINKEJI CO., LTD
- Wei Ling
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Waterproof sealing structure for a cable and communication device
- Patent number 12,062,469
- Issue date Aug 13, 2024
- QINGDAO QIYUAN CXINKEJI CO., LTD
- Wei Ling
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEALING DEVICE AND UNDERWATER MACHINERY EQUIPMENT
- Publication number 20230146471
- Publication date May 11, 2023
- QINGDAO QIYUAN CXINKEJI CO., LTD
- Wei LING
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
WATERPROOF SEALING STRUCTURE FOR A CABLE AND COMMUNICATION DEVICE
- Publication number 20230145759
- Publication date May 11, 2023
- QINGDAO QIYUAN CXINKEJI CO., LTD
- Wei LING
- H01 - BASIC ELECTRIC ELEMENTS