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Joseph Han

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  • Glendora, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rewind mechanism
    • Patent number 7,374,123
    • Issue date May 20, 2008
    • Joseph Unkyung Han
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Nozzle device for spraying defined areas
    • Patent number 6,837,448
    • Issue date Jan 4, 2005
    • Streamtech, Inc.
    • Joseph U. Han
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Enclosed pop-up sprinklers with shielded impact arms
    • Patent number 6,478,237
    • Issue date Nov 12, 2002
    • Virtual rain, Inc.
    • Don Michael Kearby
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Closed-case impact sprinklers with fitted fluid seal assemblies
    • Patent number 6,209,801
    • Issue date Apr 3, 2001
    • Virtual rain, Inc.
    • Don Michael Kearby
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Closed-case impact sprinklers
    • Patent number 6,155,493
    • Issue date Dec 5, 2000
    • Virtual rain, Inc.
    • Don Michael Kearby
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Impact sprinkler unit
    • Patent number 5,992,760
    • Issue date Nov 30, 1999
    • Virtual Rain, Inc.
    • Don Michael Kearby
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Nozzle and spray head for a sprinkler
    • Patent number 5,676,315
    • Issue date Oct 14, 1997
    • James Hardie Irrigation, Inc.
    • Joseph Han
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Irrigation sprinkler nozzle
    • Patent number 5,299,742
    • Issue date Apr 5, 1994
    • Anthony Manufacturing Corp.
    • Joseph U. Han
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Over-center biasing spring for part circle gear driven rotary irrig...
    • Patent number 5,288,023
    • Issue date Feb 22, 1994
    • Anthony Manufacturing Corp.
    • Joseph U. Han
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Vandal resistant locking device for pop-up sprinkler nozzle housings
    • Patent number 5,141,157
    • Issue date Aug 25, 1992
    • Anthony Mfg. Corp., Industrial Div.
    • Joseph U. Han
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Backwash valve lever control system
    • Patent number 4,869,817
    • Issue date Sep 26, 1989
    • Hydrotech Chemical Corporation
    • Joe Mendoza
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Rotary drive sprinkler
    • Patent number 4,681,259
    • Issue date Jul 21, 1987
    • Anthony Manufacturing Corp.
    • Edward M. Troup
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

  • Information Patent Application

    Rewind mechanism
    • Publication number 20080105779
    • Publication date May 8, 2008
    • Joseph Unkyung Han
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    REWIND MECHANISM
    • Publication number 20080054116
    • Publication date Mar 6, 2008
    • Louis A. Kish
    • Joseph Unkyung Han
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    Nozzle device for spraying defined areas
    • Publication number 20020053609
    • Publication date May 9, 2002
    • Joseph U. Han
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Enclosed pop-up sprinklers with shielded impact arms
    • Publication number 20010028004
    • Publication date Oct 11, 2001
    • Don Michael Kearby
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...