Inventor · disambiguated record
Karl Fritze
Also filed as: FRITZE KARL · FRITZE KARL J · FRITZE KARL JON
49 granted patents·30 pending applications·1,683 citations·filing 1995–2025
99Inventor score
Top patents by PatentIndex Score
79 records- 0199US6632355B2Low spillage replaceable water filter assemblyPENTAPURE INC·Filed 2001·Granted Oct 14, 2003·170 cites·12 claims
- 0299USD472604SFilter manifold connectorPENTAPURE INC·Filed 2002·Granted Apr 1, 2003·139 cites·1 claims
- 0398US7799220B2Hot disconnect replaceable water filter assembly3M INNOVATIVE PROPERTIES CO·Filed 2008·Granted Sep 21, 2010·51 cites·20 claims
- 0498US7638042B2System for monitoring the performance of fluid treatment cartridges3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Dec 29, 2009·81 cites·19 claims
- 0598USD472299SFilter cartridge connectorPENTAPURE INC·Filed 2002·Granted Mar 25, 2003·130 cites·1 claims
- 0698US6360764B1Cartridge adapterPENTAPURE INC·Filed 2000·Granted Mar 26, 2002·134 cites·26 claims
- 0797US7481928B2Hot disconnect replaceable water filter assembly3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Jan 27, 2009·79 cites·12 claims
- 0897US7067054B2Water filter assembly for use in an appliance3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Jun 27, 2006·99 cites·21 claims
- 0997US6649056B2Filter assemblyPENTAPURE INC·Filed 2001·Granted Nov 18, 2003·79 cites·13 claims
- 1096US11867301B2Manifold with integrated valveSONNYS HFI HOLDINGS LLC·Filed 2021·Granted Jan 9, 2024·4 cites·15 claims
- 1196US8182699B2Method of engaging a filter cartridge to a manifold and filter cartridge thereforFRITZE KARL·Filed 2010·Granted May 22, 2012·44 cites·20 claims
- 1295US10443747B2Manifold with integrated valveHYDRA FLEX INC·Filed 2017·Granted Oct 15, 2019·8 cites·12 claims
- 1395USRE45080EHot disconnect replaceable water filter assembly3M INNOVATIVE PROPERTIES CO·Filed 2012·Granted Aug 19, 2014·13 cites·24 claims
- 1495US7147772B2Low spillage replaceable water filter assembly3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted Dec 12, 2006·63 cites·8 claims
- 1594US11092251B2Manifold with integrated valveHYDRA FLEX INC·Filed 2019·Granted Aug 17, 2021·5 cites·19 claims
- 1694USRE46554EHot disconnect replaceable water filter assembly3M INNOVATIVE PROPERTIES CO·Filed 2013·Granted Sep 19, 2017·10 cites·29 claims
- 1794US8246883B2Filter cartridge and method of construction thereofBASSETT LAURENCE W·Filed 2008·Granted Aug 21, 2012·33 cites·21 claims
- 1893US7658212B2Liquid dispenser assembly for use with an appliance3M INNOVATIVE PROPERTIES CO·Filed 2008·Granted Feb 9, 2010·52 cites·8 claims
- 1993US6426001B1Cartridge adapterPENTAPURE INC·Filed 2001·Granted Jul 30, 2002·45 cites·6 claims
- 2092US7708148B2Freeze resistant water filter3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted May 4, 2010·19 cites·12 claims
- 2191US9839868B2Electrically enhanced filter cartridge and methods for its useFRITZE KARL J·Filed 2011·Granted Dec 12, 2017·7 cites·18 claims
- 2291USD682281SElectronic device holderBARNARD BRANDON·Filed 2011·Granted May 14, 2013·55 cites·1 claims
- 2390US9016658B2Electronic device holderASPIRE INNOVATION LLC·Filed 2013·Granted Apr 28, 2015·20 cites·10 claims
- 2489US10786768B2Electrically enhanced filter cartridge and methods for its useFRITZE KARL J·Filed 2017·Granted Sep 29, 2020·3 cites·17 claims
- 2589US8322367B2Chemical delivery systemHARRIS JAIME L·Filed 2008·Granted Dec 4, 2012·20 cites·9 claims
- 2688US9421566B2Chemical delivery data acquisition systemHARRIS JAIME L·Filed 2010·Granted Aug 23, 2016·8 cites·15 claims
- 2788US9044699B2Filtration systemGALE BRIAN D·Filed 2009·Granted Jun 2, 2015·23 cites·20 claims
- 2887US6953526B1Filter assemblyCUNO INC·Filed 2000·Granted Oct 11, 2005·37 cites·7 claims
- 2986US9102508B2Wine dispensing systemEMERALD WINE SYSTEMS LLC·Filed 2014·Granted Aug 11, 2015·17 cites·17 claims
- 3084US6481602B1Dispenser for frangible frozen food articlesRAM CT INC·Filed 2000·Granted Nov 19, 2002·22 cites·17 claims
- 3184US2025243940A1Manifold with integrated valveSONNYS HFI HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 3283US7736504B2Crossflow filtration system with quick dry change elements3M INNOVATIVE PROERTIES COMPAN·Filed 2008·Granted Jun 15, 2010·14 cites·20 claims
- 3383US6857670B2Plastic tube jointCUNO INC·Filed 2002·Granted Feb 22, 2005·19 cites·34 claims
- 3483US6305573B1Dispenser for frangible frozen food articlesRAM CT INC·Filed 1998·Granted Oct 23, 2001·40 cites·22 claims
- 3582US12305767B2Manifold with integrated valveSONNYS HFI HOLDINGS LLC·Filed 2023·Granted May 20, 2025·0 cites·4 claims
- 3681US8640931B2Tri-function tap for beveragesO'KEEFE JR EDWARD L·Filed 2012·Granted Feb 4, 2014·11 cites·14 claims
- 3780US10040078B2Compact linear oscillating water jetFRITZE KARL J·Filed 2016·Granted Aug 7, 2018·2 cites·14 claims
- 3879US8678237B2Micro dosing panel systemHARRIS JAIME L·Filed 2012·Granted Mar 25, 2014·6 cites·12 claims
- 3978US9468892B2Modular chemical dispensing assemblyHYDRA-FLEX INC·Filed 2015·Granted Oct 18, 2016·2 cites·10 claims
- 4077US8157972B2Apparatus and method for improved electrolytic water treatment processHEGEL RUDOLPH R·Filed 2009·Granted Apr 17, 2012·10 cites·10 claims
- 4176US6367777B1Electric version fry dispenserROBOT AIDED MFG CT INC·Filed 2000·Granted Apr 9, 2002·14 cites·15 claims
- 4274US10799891B2Compact linear oscillating water jetFRITZE KARL J·Filed 2018·Granted Oct 13, 2020·1 cites·1 claims
- 4373US11534707B2Electrically enhanced filter cartridge and methods for its usePARAGON WATER SYSTEMS INC·Filed 2020·Granted Dec 27, 2022·0 cites·20 claims
- 4469US6843512B2Tubing connectorCUNO INC·Filed 2002·Granted Jan 18, 2005·13 cites·15 claims
- 4569US2025206639A1Smart water treatment devices, systems, and related methodsFRITZE TECH LLC·Filed 2024·Application pending·0 cites
- 4663US9339773B2Chemical dispensing apparatus and related methodsHYDRA FLEX INC·Filed 2013·Granted May 17, 2016·1 cites·13 claims
- 4760USD402853SSingle stage bulk food dispenserRAM CENTER INC·Filed 1997·Granted Dec 22, 1998·13 cites·1 claims
- 4860US2010096302A1System for monitoring the performance of fluid treatment cartridges3M INNOVATIVE PROPERTIES CO·Filed 2009·Application pending·0 cites
- 4954US2006272995A1Low spillage replaceable water filter assembly3M INNOVATIVE PROPERTIES CO·Filed 2006·Application pending·0 cites
- 5054US2006191827A1Water filter assembly for use in an appliance3M INNOVATIVE PROPERTIES CO·Filed 2006·Application pending·0 cites
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →