Chunrui LI

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electric drill and electric tool
- Patent number 12,365,077
- Issue date Jul 22, 2025
- Nanjing Chervon Industry Co., Ltd.
- Hanqing Zheng
- B24 - GRINDING POLISHING
Information Patent Grant
Power tool
- Patent number 10,843,314
- Issue date Nov 24, 2020
- Nanjing Chervon Industry Co., Ltd.
- Chunrui Li
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
POWER TOOL
- Publication number 20240269819
- Publication date Aug 15, 2024
- Nanjing Chervon Industry Co., Ltd.
- Chunrui Li
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
POWER TOOL
- Publication number 20230128074
- Publication date Apr 27, 2023
- Nanjing Chervon Industry Co., Ltd.
- Hanqing Zheng
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
TORQUE OUTPUT TOOL
- Publication number 20230019359
- Publication date Jan 19, 2023
- Nanjing Chervon Industry Co., Ltd.
- Chunrui Li
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
ELECTRIC DRILL AND ELECTRIC TOOL
- Publication number 20230007837
- Publication date Jan 12, 2023
- Nanjing Chervon Industry Co., Ltd.
- Hanqing Zheng
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
POWER TOOL
- Publication number 20180318988
- Publication date Nov 8, 2018
- Nanjing Chervon Industry Co., Ltd.
- Chunrui LI
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS