Ka Wai JIM

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Air purifiers
- Patent number 11,648,329
- Issue date May 16, 2023
- RHT Limited
- Chi Keung Rudy Chan
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
RESPIRATOR AND AIR PURIFICATION SYSTEM
- Publication number 20230381551
- Publication date Nov 30, 2023
- RHT LIMITED
- Rudy Chi Keung CHAN
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
ANTISEPTIC COMPOSITIONS
- Publication number 20230301884
- Publication date Sep 28, 2023
- RHT LIMITED
- Ka Wai JIM
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
AIR PURIFIERS
- Publication number 20230248873
- Publication date Aug 10, 2023
- RHT LIMITED
- Chi Keung Rudy CHAN
- F24 - HEATING RANGES VENTILATING
Information Patent Application
AIR PURIFIERS
- Publication number 20230158193
- Publication date May 25, 2023
- RHT LIMITED
- Chi Keung Rudy CHAN
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
ANTISEPTIC COMPOSITIONS
- Publication number 20230126284
- Publication date Apr 27, 2023
- RHT LIMITED
- Ka Wai JIM
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE