Wai Choi Tang

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Hong Kong SAR, CN

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Patents Grantslast 30 patents

Information Patent Grant
Isolation suit with two-way air supply/disinfection pump
- Patent number 6,983,745
- Issue date Jan 10, 2006
- Winsource Industries Limited
- Wai Choi Tang
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Modular Planting System
- Publication number 20220322613
- Publication date Oct 13, 2022
- Urban Harvest Company Limited
- Sai Cheung Osbert Lam
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Protective suit
- Publication number 20050066429
- Publication date Mar 31, 2005
- Winsource Industries Limited
- Wai Choi Tang
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
UV sterilisation air-flow chamber
- Publication number 20050047975
- Publication date Mar 3, 2005
- Winsource Industries Limited
- Wai Choi Tang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Isolation suit with two-way air supply/disinfection pump
- Publication number 20050045178
- Publication date Mar 3, 2005
- Winsource Industries Limited
- Wai Choi Tang
- A62 - LIFE-SAVING FIRE-FIGHTING