Xiaohui CHANG

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Huaian, CN

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Patents Grantslast 30 patents

Information Patent Grant
Waterproof air pump, inflatable product, and production method and...
- Patent number 12,215,709
- Issue date Feb 4, 2025
- Jiangsu Guorun Electric Co., Ltd.
- Houxi Rao
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
WATERPROOF AIR PUMP, INFLATABLE PRODUCT, AND PRODUCTION METHOD AND...
- Publication number 20230349391
- Publication date Nov 2, 2023
- Yiwu Leying E-Commerce Co., Ltd.
- Houxi RAO
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...