Yu-Chieh Liang

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Nantou, TW

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Patents Grantslast 30 patents

Information Patent Grant
Respiratory protection device and processes for producing the same
- Patent number 11,337,469
- Issue date May 24, 2022
- Masgick, Inc.
- Rui-Hong Tuan
- A41 - WEARING APPAREL
Information Patent Grant
Strapless collapsible respiratory mask
- Patent number D872256
- Issue date Jan 7, 2020
- Masgick, Inc.
- Rui-Hong Tuan
- D24 - Medical and laboratory equipment

Patents Applicationslast 30 patents

Information Patent Application
RESPIRATORY PROTECTION DEVICE AND PROCESSES FOR PRODUCING THE SAME
- Publication number 20210321687
- Publication date Oct 21, 2021
- Masgick, Inc.
- RUI-HONG TUAN
- A41 - WEARING APPAREL