Chenchen FEI

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Patents Grantslast 30 patents

Information Patent Grant
Portable pipe dredging machine and dredging method
- Patent number 11,987,966
- Issue date May 21, 2024
- Hangzhou Hongli Pipe Machinery Co., Ltd
- Chenchen Fei
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE PIPE DREDGING MACHINE AND DREDGING METHOD
- Publication number 20230193609
- Publication date Jun 22, 2023
- Hangzhou Hongli Pipe Machinery Co., Ltd
- Chenchen FEI
- B08 - CLEANING
Information Patent Application
HANDHELD LITHIUM BATTERY THREADING MACHINE AND THREADING METHOD
- Publication number 20230097943
- Publication date Mar 30, 2023
- Hangzhou Hongli Pipe Machinery Co., Ltd
- Hongwu XIE
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
BENCH PIPE THREADING MACHINE AND THREADING METHOD
- Publication number 20230069703
- Publication date Mar 2, 2023
- Hangzhou Hongli Pipe Machinery Co., Ltd
- Hongwu XIE
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR