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Wai Cheong Lee

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  • Hong Kong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Blowing-sucking device
    • Patent number 12,317,784
    • Issue date Jun 3, 2025
    • TECHTRONIC CORDLESS GP
    • Wai Chung Lee
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Submersible pump
    • Patent number 12,297,837
    • Issue date May 13, 2025
    • TECHTRONIC CORDLESS GP
    • Gerardo Quintanilla Avila
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Portable floor sweeper
    • Patent number 8,925,133
    • Issue date Jan 6, 2015
    • Kwonnie Electrical Products Limited
    • Wai Cheong Lee
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    ROBOTIC TOOL AND CHARGING STATION
    • Publication number 20230339341
    • Publication date Oct 26, 2023
    • TECHTRONIC CORDLESS GP
    • Carl Jeffries
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    HAND-HELD ELECTRIC TOOL
    • Publication number 20230321738
    • Publication date Oct 12, 2023
    • TECHTRONIC CORDLESS GP
    • Jie LI
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Osteogenic agents and uses thereof
    • Publication number 20230310342
    • Publication date Oct 5, 2023
    • GOLDPORP PHARMA LIMITED
    • Chi-Ming CHE
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    PORTABLE POWER SUPPLY DEVICE FOR AN ELECTRIC TOOL
    • Publication number 20230151815
    • Publication date May 18, 2023
    • TECHTRONIC CORDLESS GP
    • Wai Chung LEE
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    SUBMERSIBLE PUMP
    • Publication number 20230070541
    • Publication date Mar 9, 2023
    • TECHTRONIC CORDLESS GP
    • Gerardo Quintanilla Avila
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OUTDOOR SURFACE CLEANING APPARATUS WITH SPRAY MECHANISM
    • Publication number 20230055153
    • Publication date Feb 23, 2023
    • TECHTRONIC CORDLESS GP
    • WAI CHUNG LEE
    • B08 - CLEANING
  • Information Patent Application

    OUTDOOR SURFACE CLEANING APPARATUS WITH SPRAY MECHANISM
    • Publication number 20230059781
    • Publication date Feb 23, 2023
    • TECHTRONIC CORDLESS GP
    • Wai Chung LEE
    • A46 - BRUSHWARE
  • Information Patent Application

    OUTDOOR SURFACE CLEANING APPARATUS WITH SPRAY MECHANISM
    • Publication number 20230053531
    • Publication date Feb 23, 2023
    • TECHTRONIC CORDLESS GP
    • WAI CHUNG LEE
    • B08 - CLEANING
  • Information Patent Application

    BLOWING-SUCKING DEVICE
    • Publication number 20220330495
    • Publication date Oct 20, 2022
    • TECHTRONIC CORDLESS GP
    • Wai Chung Lee
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    SHREDDING MECHANISM, SHREDDING DEVICE AND CONTROL SYSTEM AND METHOD...
    • Publication number 20220193692
    • Publication date Jun 23, 2022
    • TECHTRONIC CORDLESS GP
    • Wai Chung Lee
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    PORTABLE FLOOR SWEEPER
    • Publication number 20120233792
    • Publication date Sep 20, 2012
    • KWONNIE ELECTRICAL PRODUCTS LIMITED
    • Wai Cheong Lee
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...