Hao-Yao Chang

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Yuanlin City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Muffler structure
- Patent number 11,280,235
- Issue date Mar 22, 2022
- Guang Rong Enterprise Co., Ltd.
- Hao-Yao Chang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
Muffler Structure
- Publication number 20210003053
- Publication date Jan 7, 2021
- Guang Rong Enterprise Co., Ltd.
- Hao-Yao Chang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES