Hiu Ying Lam

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Taipo, HK

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Patents Grantslast 30 patents

Information Patent Grant
Composite material for use in a face mask, and a face mask formed t...
- Patent number 12,030,294
- Issue date Jul 9, 2024
- Hiu Ying Lam
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Composite Material For Use In A Face Mask, and A Face Mask Formed T...
- Publication number 20220030966
- Publication date Feb 3, 2022
- Hiu Ying Lam
- B32 - LAYERED PRODUCTS