Inventor · disambiguated record
Joseph Han
Also filed as: HAN JOSEPH · HAN JOSEPH U · HAN JOSEPH UNKYUNG
37 granted patents·12 pending applications·766 citations·filing 1983–2024
98Inventor score
Top patents by PatentIndex Score
49 records- 0195US7374123B2Rewind mechanismHAN JOSEPH UNKYUNG·Filed 2006·Granted May 20, 2008·28 cites·20 claims
- 0291US6715162B2Toilet assemblyAMERICAN STANDARD INC·Filed 2002·Granted Apr 6, 2004·45 cites·1 claims
- 0391US5299742AIrrigation sprinkler nozzleANTHONY MFG CORP·Filed 1993·Granted Apr 5, 1994·89 cites·10 claims
- 0489US6728975B2High performance flush valve assemblyAMERICAN STANDARD INC·Filed 2002·Granted May 4, 2004·33 cites·30 claims
- 0588US6442772B2Advanced dual-flush valveFLUIDMASTER·Filed 2001·Granted Sep 3, 2002·33 cites·21 claims
- 0687US4681259ARotary drive sprinklerANTHONY MFG CORP·Filed 1985·Granted Jul 21, 1987·75 cites·71 claims
- 0785US6478237B2Enclosed pop-up sprinklers with shielded impact armsVIRTUAL RAIN INC·Filed 2001·Granted Nov 12, 2002·49 cites·11 claims
- 0883US6604249B2Advanced dual-flush valveFLUIDMASTER·Filed 2002·Granted Aug 12, 2003·24 cites·5 claims
- 0981US11391391B2Discharge valve system and methodFLUIDMASTER·Filed 2020·Granted Jul 19, 2022·1 cites·16 claims
- 1080US6155493AClosed-case impact sprinklersVIRTUAL RAIN INC·Filed 1999·Granted Dec 5, 2000·48 cites·18 claims
- 1179US5992760AImpact sprinkler unitVIRTUAL RAIN INC·Filed 1998·Granted Nov 30, 1999·53 cites·17 claims
- 1279US5676315ANozzle and spray head for a sprinklerHARDIE JAMES IRRIGATION INC·Filed 1995·Granted Oct 14, 1997·66 cites·30 claims
- 1377US4869817ABackwash valve lever control systemHYDROTECH CHEMICAL CORP·Filed 1983·Granted Sep 26, 1989·34 cites·10 claims
- 1476US6901610B1High performance valve assembly for toiletsAMERICAN STANDARD INTERNATIONA·Filed 2004·Granted Jun 7, 2005·18 cites·30 claims
- 1575US8104103B2Toilet flapper flush valve assemblyHAN JOSEPH·Filed 2008·Granted Jan 31, 2012·5 cites·11 claims
- 1674US7559337B2Retractable float for a ballcock valveFLUIDMASTER·Filed 2007·Granted Jul 14, 2009·7 cites·2 claims
- 1772US11125353B2Pneumatic lost motion/binary device system and methodFLUIDMASTER·Filed 2018·Granted Sep 21, 2021·1 cites·12 claims
- 1871US11142898B2Modular fluid valveFLUIDMASTER·Filed 2019·Granted Oct 12, 2021·1 cites·12 claims
- 1971US6837448B2Nozzle device for spraying defined areasSTREAMTECH INC·Filed 2001·Granted Jan 4, 2005·23 cites·8 claims
- 2071US2008105779A1Rewind mechanismHAN JOSEPH U·Filed 2008·Application pending·0 cites
- 2170US12428827B2Omni configured flapper systems for various flush valve sizes and methods of retrofitFLUIDMASTER·Filed 2022·Granted Sep 30, 2025·0 cites·17 claims
- 2270US11713817B2Balanced activation force and bistable valve system and methodFLUIDMASTER·Filed 2021·Granted Aug 1, 2023·0 cites·19 claims
- 2369US7900290B2Dual flush refill deviceFLUIDMASTER·Filed 2006·Granted Mar 8, 2011·2 cites·6 claims
- 2467US11746922B2Pneumatic lost motion/binary device system and methodFLUIDMASTER·Filed 2021·Granted Sep 5, 2023·0 cites·10 claims
- 2567US8250681B2Variable buoyancy setting flapperHAN JOSEPH·Filed 2008·Granted Aug 28, 2012·4 cites·21 claims
- 2665US11643798B2Modular fluid valveFLUIDMASTER·Filed 2021·Granted May 9, 2023·0 cites·18 claims
- 2764US10767766B2Discharge valve system and methodFLUIDMASTER·Filed 2018·Granted Sep 8, 2020·0 cites·14 claims
- 2862US9650772B2Float lock for a flush valve reservoirFLUIDMASTER·Filed 2014·Granted May 16, 2017·1 cites·16 claims
- 2958US2019101217A1Balanced activation force and bistable valve system and methodFLUIDMASTER·Filed 2018·Application pending·0 cites
- 3055US2010037380A1Toilet Valve Refill Water AdjusterFLUIDMASTER·Filed 2009·Application pending·0 cites
- 3155US2024294317A1Omni configured flapper systems and packagingFLUIDMASTER·Filed 2024·Application pending·0 cites
- 3254US2008047052A1Flush valve with floatHAN JOSEPH·Filed 2007·Application pending·0 cites
- 3354US2007289054A1Toilet bowl cleanser dispenser deviceHAN JOSEPH·Filed 2007·Application pending·0 cites
- 3453US2016097190A1Fill valve leak prevention systemFLUIDMASTER·Filed 2014·Application pending·0 cites
- 3552US6209801B1Closed-case impact sprinklers with fitted fluid seal assembliesVIRTUAL RAIN INC·Filed 1999·Granted Apr 3, 2001·17 cites·4 claims
- 3652US2014345703A1Fill valve leak prevention deviceFLUIDMASTER·Filed 2014·Application pending·0 cites
- 3751USD319489SProtective cap for pop-up lawn sprinklersANTHONY MFG CORPORATION·Filed 1990·Granted Aug 27, 1991·10 cites·1 claims
- 3851US2025146260A1Cistern system, apparatus and methodFLUIDMASTER·Filed 2023·Application pending·0 cites
- 3951US2012216872A1Variable buoyance setting flapperHAN JOSEPH·Filed 2012·Application pending·0 cites
- 4049US5141157AVandal resistant locking device for pop-up sprinkler nozzle housingsANTHONY MFG CORP IND DIV·Filed 1991·Granted Aug 25, 1992·26 cites·7 claims
- 4147US9540798B2Drain lock for a flush valve reservoirFLUIDMASTER·Filed 2014·Granted Jan 10, 2017·0 cites·14 claims
- 4247US6182306B1Side-mount toilet valveFLUIDMASTER·Filed 1998·Granted Feb 6, 2001·11 cites·11 claims
- 4347US2018230684A1Automatic release flush leverFLUIDMASTER·Filed 2018·Application pending·0 cites
- 4446US5769111ALeak detectorFLUIDMASTER·Filed 1997·Granted Jun 23, 1998·12 cites·14 claims
- 4545US5288023AOver-center biasing spring for part circle gear driven rotary irrigation sprinklersANTHONY MFG CORP·Filed 1991·Granted Feb 22, 1994·15 cites·10 claims
- 4643US6059261AUniversal connectorFLUIDMASTER·Filed 1998·Granted May 9, 2000·12 cites·5 claims
- 4742US5634874APortable upper anatomy exercise deviceKEST ANTHONY M·Filed 1996·Granted Jun 3, 1997·14 cites·30 claims
- 4839US2018275687A1Spiral spring flow regulatorFLUIDMASTER·Filed 2018·Application pending·0 cites
- 4931US5769197AClutch assembly for an exercise apparatusKEST ANTHONY MICHAEL·Filed 1996·Granted Jun 23, 1998·9 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →