Leihua CHEN

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Crimping tool
- Patent number 11,578,824
- Issue date Feb 14, 2023
- Ridge Tool Company
- LeiHua Chen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Crimping tool
- Patent number 11,577,299
- Issue date Feb 14, 2023
- Ridge Tool Company
- LeiHua Chen
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hydraulic tool
- Patent number 10,759,037
- Issue date Sep 1, 2020
- Ridge Tool Company
- Qi Zhou
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
CRIMPING TOOL
- Publication number 20200271249
- Publication date Aug 27, 2020
- Ridge Tool Company
- LeiHua CHEN
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
CRIMPING TOOL
- Publication number 20190291165
- Publication date Sep 26, 2019
- Ridge Tool Company
- LeiHua CHEN
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HYDRAULIC TOOL
- Publication number 20180345473
- Publication date Dec 6, 2018
- EMERSON PROFESSIONAL TOOLS (SHANGHAI) CO., LTD.
- Qi ZHOU
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR