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Joseph Han

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  • Irvine, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic lost motion/binary device system and method
    • Patent number 11,746,922
    • Issue date Sep 5, 2023
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Balanced activation force and bistable valve system and method
    • Patent number 11,713,817
    • Issue date Aug 1, 2023
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Modular fluid valve
    • Patent number 11,643,798
    • Issue date May 9, 2023
    • Fluidmaster, Inc.
    • Tuan Van Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Discharge valve system and method
    • Patent number 11,391,391
    • Issue date Jul 19, 2022
    • Fluidmaster, Inc.
    • Tuan Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Modular fluid valve
    • Patent number 11,142,898
    • Issue date Oct 12, 2021
    • Fluidmaster, Inc.
    • Tuan Van Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Pneumatic lost motion/binary device system and method
    • Patent number 11,125,353
    • Issue date Sep 21, 2021
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Discharge valve system and method
    • Patent number 10,767,766
    • Issue date Sep 8, 2020
    • Fluidmaster, Inc.
    • Tuan Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Float lock for a flush valve reservoir
    • Patent number 9,650,772
    • Issue date May 16, 2017
    • Fluidmaster, Inc.
    • Michael Lee
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Drain lock for a flush valve reservoir
    • Patent number 9,540,798
    • Issue date Jan 10, 2017
    • Fluidmaster, Inc.
    • JunSheng Chen
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Variable buoyancy setting flapper
    • Patent number 8,250,681
    • Issue date Aug 28, 2012
    • Fluidmaster, Inc.
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Toilet flapper flush valve assembly
    • Patent number 8,104,103
    • Issue date Jan 31, 2012
    • Fluidmaster, Inc.
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Dual flush refill device
    • Patent number 7,900,290
    • Issue date Mar 8, 2011
    • Fluidmaster, Inc.
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Retractable float for a ballcock valve
    • Patent number 7,559,337
    • Issue date Jul 14, 2009
    • Fluidmaster, Inc.
    • Joseph Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    High performance valve assembly for toilets
    • Patent number 6,901,610
    • Issue date Jun 7, 2005
    • American Standard International, Inc.
    • Robert Jensen
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    High performance flush valve assembly
    • Patent number 6,728,975
    • Issue date May 4, 2004
    • American Standard Inc.
    • Joseph Unkyung Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Toilet assembly
    • Patent number 6,715,162
    • Issue date Apr 6, 2004
    • American Standard Inc.
    • Joseph Unkyung Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Advanced dual-flush valve
    • Patent number 6,604,249
    • Issue date Aug 12, 2003
    • Fluidmaster, Inc.
    • Joseph Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Advanced dual-flush valve
    • Patent number 6,442,772
    • Issue date Sep 3, 2002
    • Fluidmaster, Inc.
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Side-mount toilet valve
    • Patent number 6,182,306
    • Issue date Feb 6, 2001
    • Fluidmaster, Inc.
    • Joseph U. Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Universal connector
    • Patent number 6,059,261
    • Issue date May 9, 2000
    • Fluidmaster, Inc.
    • Joseph U. Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Leak detector
    • Patent number 5,769,111
    • Issue date Jun 23, 1998
    • Fluidmaster, Inc.
    • Joseph U. Han
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    OMNI CONFIGURED FLAPPER SYSTEMS FOR VARIOUS FLUSH VALVE SIZES AND M...
    • Publication number 20230160191
    • Publication date May 25, 2023
    • Fluidmaster, Inc.
    • Tuan Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    MODULAR FLUID VALVE
    • Publication number 20210395988
    • Publication date Dec 23, 2021
    • Fluidmaster, Inc.
    • Tuan Van Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    BALANCED ACTIVATION FORCE AND BISTABLE VALVE SYSTEM AND METHOD
    • Publication number 20210364093
    • Publication date Nov 25, 2021
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PNEUMATIC LOST MOTION/BINARY DEVICE SYSTEM AND METHOD
    • Publication number 20210341075
    • Publication date Nov 4, 2021
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DISCHARGE VALVE SYSTEM AND METHOD
    • Publication number 20200400237
    • Publication date Dec 24, 2020
    • Fluidmaster, Inc.
    • Tuan Le
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MODULAR FLUID VALVE
    • Publication number 20190323219
    • Publication date Oct 24, 2019
    • Fluidmaster, Inc.
    • Tuan Van Le
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    PNEUMATIC LOST MOTION/BINARY DEVICE SYSTEM AND METHOD
    • Publication number 20190101226
    • Publication date Apr 4, 2019
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DISCHARGE VALVE SYSTEM AND METHOD
    • Publication number 20190101216
    • Publication date Apr 4, 2019
    • Fluidmaster, Inc.
    • Tuan Le
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    BALANCED ACTIVATION FORCE AND BISTABLE VALVE SYSTEM AND METHOD
    • Publication number 20190101217
    • Publication date Apr 4, 2019
    • Fluidmaster, Inc.
    • Tuan Le
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPIRAL SPRING FLOW REGULATOR
    • Publication number 20180275687
    • Publication date Sep 27, 2018
    • Fluidmaster, Inc.
    • Joseph HAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    AUTOMATIC RELEASE FLUSH LEVER
    • Publication number 20180230684
    • Publication date Aug 16, 2018
    • Fluidmaster, Inc.
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    FILL VALVE LEAK PREVENTION SYSTEM
    • Publication number 20160097190
    • Publication date Apr 7, 2016
    • Fluidmaster, Inc.
    • Joseph HAN
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    DRAIN LOCK FOR A FLUSH VALVE RESERVOIR
    • Publication number 20150067954
    • Publication date Mar 12, 2015
    • Fluidmaster, Inc.
    • JunSheng CHEN
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    FLOAT LOCK FOR A FLUSH VALVE RESERVOIR
    • Publication number 20150067955
    • Publication date Mar 12, 2015
    • Fluidmaster, Inc.
    • Michael LEE
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    FILL VALVE LEAK PREVENTION DEVICE
    • Publication number 20140345703
    • Publication date Nov 27, 2014
    • Fluidmaster, Inc.
    • Joseph HAN
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    VARIABLE BUOYANCE SETTING FLAPPER
    • Publication number 20120216872
    • Publication date Aug 30, 2012
    • Fluidmaster Inc.
    • JOSEPH HAN
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Toilet Valve Refill Water Adjuster
    • Publication number 20100037380
    • Publication date Feb 18, 2010
    • Fluidmaster, Inc.
    • Mike Robbins
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Toilet flapper flush valve assembly
    • Publication number 20090144888
    • Publication date Jun 11, 2009
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Variable buoyancy setting flapper
    • Publication number 20080271233
    • Publication date Nov 6, 2008
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Flush valve with float
    • Publication number 20080047052
    • Publication date Feb 28, 2008
    • Joseph Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Retractable float for a ballcock valve
    • Publication number 20070295408
    • Publication date Dec 27, 2007
    • Joseph Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Toilet bowl cleanser dispenser device
    • Publication number 20070289054
    • Publication date Dec 20, 2007
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Dual flush refill device
    • Publication number 20060174403
    • Publication date Aug 10, 2006
    • Joseph Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    TOILET ASSEMBLY
    • Publication number 20040040076
    • Publication date Mar 4, 2004
    • American Standard, Inc.
    • Joseph Unkyung Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    HIGH PERFORMANCE FLUSH VALVE ASSEMBLY
    • Publication number 20040040078
    • Publication date Mar 4, 2004
    • American Standard, Inc.
    • Joseph Unkyung Han
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Advanced dual-flush valve
    • Publication number 20020112282
    • Publication date Aug 22, 2002
    • Joseph Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Advanced dual-flush valve
    • Publication number 20010042265
    • Publication date Nov 22, 2001
    • Joseph Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...