Chia-Hao Yeh

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TAICHUNGCITY, TW

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Patents Grantslast 30 patents

Information Patent Grant
Energy-saving and gas-efficient pneumatic barrier gate device
- Patent number 12,152,353
- Issue date Nov 26, 2024
- Ching-Hsiu Yeh
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
ENERGY-SAVING AND GAS-EFFICIENT PNEUMATIC BARRIER GATE DEVICE
- Publication number 20240018732
- Publication date Jan 18, 2024
- Ching-Hsiu Yeh
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES