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Kam Hoi Ma

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  • Hong Kong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,930,975
    • Issue date Mar 19, 2024
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,825,996
    • Issue date Nov 28, 2023
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,241,134
    • Issue date Feb 8, 2022
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,122,949
    • Issue date Sep 21, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,096,540
    • Issue date Aug 24, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,096,543
    • Issue date Aug 24, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,096,539
    • Issue date Aug 24, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,096,541
    • Issue date Aug 24, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,096,542
    • Issue date Aug 24, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 11,089,933
    • Issue date Aug 17, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 10,925,455
    • Issue date Feb 23, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 10,820,769
    • Issue date Nov 3, 2020
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 10,092,155
    • Issue date Oct 9, 2018
    • Bissell Homecare, Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner with level control
    • Patent number 7,293,324
    • Issue date Nov 13, 2007
    • Techtronic Industries Co., Ltd.
    • Kam Lun Chui
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20240156319
    • Publication date May 16, 2024
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20240041288
    • Publication date Feb 8, 2024
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20230329506
    • Publication date Oct 19, 2023
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20220071466
    • Publication date Mar 10, 2022
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Application

    REUSABLE SMART MEDICAL PROTECTIVE MASK
    • Publication number 20220039492
    • Publication date Feb 10, 2022
    • Hong Kong Green Dreamer Technology Limited
    • KAM-MEI MA
    • A41 - WEARING APPAREL
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210153708
    • Publication date May 27, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A46 - BRUSHWARE
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210106198
    • Publication date Apr 15, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210106199
    • Publication date Apr 15, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210106200
    • Publication date Apr 15, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210045607
    • Publication date Feb 18, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210045610
    • Publication date Feb 18, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210045608
    • Publication date Feb 18, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210045606
    • Publication date Feb 18, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20210045609
    • Publication date Feb 18, 2021
    • Bissell Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20180325341
    • Publication date Nov 15, 2018
    • BISSELL Homecare, Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20170119225
    • Publication date May 4, 2017
    • BISSELL Homecare, Inc.
    • Jincheng Xia
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...