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Xintao MA

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  • Suzhou, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 10,743,734
    • Issue date Aug 18, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface cleaning apparatus
    • Patent number 10,709,307
    • Issue date Jul 14, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Liquid extraction apparatus and method
    • Patent number 10,674,881
    • Issue date Jun 9, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Surface cleaning system
    • Patent number D875334
    • Issue date Feb 11, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning head
    • Patent number D874766
    • Issue date Feb 4, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning head
    • Patent number D874767
    • Issue date Feb 4, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning system
    • Patent number D873512
    • Issue date Jan 21, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning head
    • Patent number D872399
    • Issue date Jan 7, 2020
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Nozzle
    • Patent number D869111
    • Issue date Dec 3, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Nozzle
    • Patent number D869112
    • Issue date Dec 3, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning device handle
    • Patent number D869113
    • Issue date Dec 3, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning attachment
    • Patent number D861267
    • Issue date Sep 24, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning device handle
    • Patent number D857312
    • Issue date Aug 20, 2019
    • JPMORGAN CHASE BANK, N.A.
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Recovery tank
    • Patent number D857320
    • Issue date Aug 20, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Cleaning fluid tank
    • Patent number D857319
    • Issue date Aug 20, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Surface cleaning device shaft
    • Patent number D857315
    • Issue date Aug 20, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Brush roll
    • Patent number D843733
    • Issue date Mar 26, 2019
    • Rug Doctor, LLC
    • Ernest Matthew Chavana
    • D04 - Brushware

Patents Applicationslast 30 patents

  • Information Patent Application

    LIQUID EXTRACTION APPARATUS AND METHOD
    • Publication number 20190133398
    • Publication date May 9, 2019
    • Rug Doctor, LLC
    • Ernest Matthew CHAVANA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    SURFACE CLEANING APPARATUS
    • Publication number 20190082920
    • Publication date Mar 21, 2019
    • Rug Doctor, LLC
    • Ernest Matthew CHAVANA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    LIQUID EXTRACTION APPARATUS AND METHOD
    • Publication number 20190082905
    • Publication date Mar 21, 2019
    • Rug Doctor, LLC
    • Ernest Matthew CHAVANA
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...