TREA

Lam Lung Yeung

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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

    CATALYST COMPOSITIONS AND METHODS FOR DECOMPOSING FORMALDEHYDE THEREOF
    • Publication number 20250025859
    • Publication date Jan 23, 2025
    • RHT LIMITED
    • Chi Keung Rudy CHAN
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • 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