Wang Xiao

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Santa Clara, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Transparent face mask
- Patent number D983460
- Issue date Apr 11, 2023
- 4C Air, Inc.
- Qiqi Wang
- D29 - Equipment for safety, protection, and rescue
Information Patent Grant
Breathable film and method for manufacturing same
- Patent number 11,203,190
- Issue date Dec 21, 2021
- 4C Air, Inc.
- Lei Liao
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
BIODEGRADABLE AIR FILTERING FILM AND METHOD FOR MANUFACTURING SAME
- Publication number 20230183473
- Publication date Jun 15, 2023
- 4C Air, Inc.
- Mervin Zhao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
BREATHABLE FILM AND METHOD FOR MANUFACTURING SAME
- Publication number 20210178737
- Publication date Jun 17, 2021
- Lei Liao
- B32 - LAYERED PRODUCTS