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Li-Hsiung Liu

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  • Tucson, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum cleaner with screen cage
    • Patent number 9,198,552
    • Issue date Dec 1, 2015
    • Shop-Vac Corporation
    • Melvin E. Wolfe
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Combination vacuum cleaner, dolly, and mounting bracket
    • Patent number 8,707,497
    • Issue date Apr 29, 2014
    • Shop-Vac Corporation
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner with recirculated cooling air
    • Patent number 8,533,906
    • Issue date Sep 17, 2013
    • Shop-Vac Corporation
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D688842
    • Issue date Aug 27, 2013
    • Shop-Vac Corporation
    • Li H. Liu
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D683507
    • Issue date May 28, 2013
    • Shop-Vac Corporation
    • Li H. Liu
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D646860
    • Issue date Oct 11, 2011
    • Shop-Vac Corporation
    • Li Liu
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum with rechargeable battery
    • Patent number 8,015,661
    • Issue date Sep 13, 2011
    • Shop-Vac Corporation
    • Mark E. Baer
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D636954
    • Issue date Apr 26, 2011
    • Shop-Vac Corporation
    • Li Liu
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Wall hanging vacuum cleaner
    • Patent number 7,555,809
    • Issue date Jul 7, 2009
    • Shop-Vac Corporation
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D581114
    • Issue date Nov 18, 2008
    • Shop-Vac Corporation
    • Robert Lent Crevling, Jr.
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D571513
    • Issue date Jun 17, 2008
    • Shop-Vac Corporation
    • John Griffin
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D568565
    • Issue date May 6, 2008
    • Shop-Vac Corporation
    • John Griffin
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Handheld vacuum
    • Patent number D537578
    • Issue date Feb 27, 2007
    • Shop-Vac Corporation
    • Robert L. Crevling, Jr.
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Battery cartridge
    • Patent number D521445
    • Issue date May 23, 2006
    • Shop-Vac Corporation
    • Li H. Liu
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery cartridge
    • Patent number D521446
    • Issue date May 23, 2006
    • Shop-Vac Corporation
    • Li H. Liu
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Battery cartridge
    • Patent number D520444
    • Issue date May 9, 2006
    • Shop-Vac Corporation
    • Li H. Liu
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Vacuum cleaner mounting assembly
    • Patent number 6,557,206
    • Issue date May 6, 2003
    • Shop-Vac
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner filter assembly
    • Patent number 6,440,191
    • Issue date Aug 27, 2002
    • Shop-Vac Corporation
    • Robert C. Berfield
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner tank assembly
    • Patent number 6,179,889
    • Issue date Jan 30, 2001
    • Shop-Vac Corporation
    • Li Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner having a dual filter assembly
    • Patent number 6,113,663
    • Issue date Sep 5, 2000
    • Shop-Vac Corporation
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Dual filter assembly for a vacuum cleaner
    • Patent number 6,110,248
    • Issue date Aug 29, 2000
    • Shop-Vac Corporation
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner tank
    • Patent number D429394
    • Issue date Aug 8, 2000
    • Shop-Vac Corporation
    • John Griffin
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Vacuum cleaner
    • Patent number D429042
    • Issue date Aug 1, 2000
    • Shop-Vac Corporation
    • John Griffin
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Impeller for blower/vacuum
    • Patent number 5,588,178
    • Issue date Dec 31, 1996
    • McCulloch Corporation
    • Li-Hsiung Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Vacuum Cleaner with Screen Cage
    • Publication number 20130276262
    • Publication date Oct 24, 2013
    • SHOP-VAC CORPORATION
    • Melvin E. Wolfe
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Vacuum Cleaner with Recirculated Cooling Air
    • Publication number 20130007984
    • Publication date Jan 10, 2013
    • SHOP-VAC CORPORATION
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Combination vacuum cleaner, dolly, and mounting bracket
    • Publication number 20110107547
    • Publication date May 12, 2011
    • SHOP-VAC CORPORATION
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Wall hanging vacuum cleaner
    • Publication number 20080276411
    • Publication date Nov 13, 2008
    • SHOP-VAC CORPORATION
    • Li H. Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Vacuum with rechargeable battery
    • Publication number 20050155177
    • Publication date Jul 21, 2005
    • SHOP-VAC CORPORATION
    • Mark E. Baer
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...