Inventor · disambiguated record
Keith Fadgen
Also filed as: FADGEN KEITH · FADGEN KEITH E · FADGEN KEITH EDWARD
29 granted patents·11 pending applications·104 citations·filing 2001–2022
95Inventor score
Files withWATERS TECHNOLOGIES CORP20GERHARDT GEOFF C4WATERS INVESTMENTS LTD4FADGEN KEITH2BENEVIDES CHRISTOPHER C1
Top patents by PatentIndex Score
40 records- 0194US9169934B2High pressure fluidic switching valve having variable pressure loadingBUNNER BERNARD·Filed 2012·Granted Oct 27, 2015·18 cites·12 claims
- 0290US9115815B2Variable-volume injection valveGERHARDT GEOFF C·Filed 2011·Granted Aug 25, 2015·10 cites·18 claims
- 0389US9983178B2Chromatography column assemblyMICHIENZI JOSEPH D·Filed 2012·Granted May 29, 2018·9 cites·20 claims
- 0486US8312762B2Device and methods for reducing pressure and flow perturbations in a chromatographic systemFADGEN KEITH·Filed 2007·Granted Nov 20, 2012·20 cites·28 claims
- 0585US10953346B2Systems, methods, and devices providing solvent container identification and incorporationWATERS TECHNOLOGIES CORP·Filed 2018·Granted Mar 23, 2021·2 cites·5 claims
- 0685US8641882B2Capillary column cartridgeJARRELL JOSEPH A·Filed 2011·Granted Feb 4, 2014·5 cites·23 claims
- 0782US11105778B2Method and apparatus for injecting a chromatographic sampleWATERS TECHNOLOGIES CORP·Filed 2017·Granted Aug 31, 2021·2 cites·10 claims
- 0882US10866218B2Managing fluidic connections to microfluidic devicesWATERS TECHNOLOGIES CORP·Filed 2019·Granted Dec 15, 2020·1 cites·20 claims
- 0981US8173070B2Sample injector system for liquid chromatographyGERHARDT GEOFF C·Filed 2005·Granted May 8, 2012·8 cites·54 claims
- 1079US9103814B2Solvent delivery system for liquid chromatography that maintains fluid integrity and pre-forms gradientsCIAVARINI STEVEN J·Filed 2007·Granted Aug 11, 2015·8 cites·16 claims
- 1178US12247962B2Micro solid phase extraction devices and methodsWATERS TECHNOLOGIES CORP·Filed 2019·Granted Mar 11, 2025·1 cites·20 claims
- 1277US7059185B2System and method of measuring convection induced impedance gradients to determine liquid flow ratesWATERS INVESTMENTS LTD·Filed 2005·Granted Jun 13, 2006·4 cites·18 claims
- 1375US10823713B2Systems, methods, and devices for providing pressurized solvent flowWATERS TECHNOLOGIES CORP·Filed 2017·Granted Nov 3, 2020·1 cites·14 claims
- 1472US9396916B2Electrokinetically controlled calibrant deliveryGERHARDT GEOFF C·Filed 2012·Granted Jul 19, 2016·2 cites·16 claims
- 1572US7332087B2Flow sensing apparatus used to monitor/provide feedback to a split flow pumping systemWATERS INVESTMENTS LTD·Filed 2003·Granted Feb 19, 2008·8 cites·5 claims
- 1671US11717770B2Variable fluidic restrictor having selective restrictionWATERS TECHNOLOGIES CORP·Filed 2022·Granted Aug 8, 2023·0 cites·6 claims
- 1771US10802002B2Chromatography column assemblyWATERS TECHNOLOGIES CORP·Filed 2018·Granted Oct 13, 2020·0 cites·18 claims
- 1868US8394275B2Liquid-chromatography conduit assemblies having high-pressure sealsBENEVIDES CHRISTOPHER C·Filed 2008·Granted Mar 12, 2013·5 cites·11 claims
- 1967US11325055B2Variable fluidic restrictor having selective restrictionWATERS TECHNOLOGIES CORP·Filed 2019·Granted May 10, 2022·0 cites·14 claims
- 2062US2021123891A1Solvent delivery system for liquid chromatography that maintains fluid integrity and pre-forms gradientsWATERS TECHNOLOGIES CORP·Filed 2021·Application pending·0 cites
- 2160US11061003B2Method and apparatus for injecting a chromatographic sampleWATERS TECHNOLOGIES CORP·Filed 2019·Granted Jul 13, 2021·0 cites·13 claims
- 2259US11275061B2Reconfigurable fluidic manifold for a liquid chromatography systemWATERS TECHNOLOGIES CORP·Filed 2019·Granted Mar 15, 2022·0 cites·14 claims
- 2357US2015346168A1Solvent delivery system for liquid chromatography that maintains fluid integrity and pre-forms gradientsWATERS TECHNOLOGIES CORP·Filed 2015·Application pending·0 cites
- 2456US8679332B2Flow sensing apparatus used to monitor/provide feedback system to a split flow pumping systemGERHARDT GEOFF C·Filed 2007·Granted Mar 25, 2014·0 cites·13 claims
- 2555US9662595B2Liquid-chromatography conduit assemblies having high-pressure sealsWATERS TECHNOLOGIES CORP·Filed 2013·Granted May 30, 2017·0 cites·18 claims
- 2653US12259369B2Micro solid phase extraction devices and methodsWATERS TECHNOLOGIES CORP·Filed 2019·Granted Mar 25, 2025·0 cites·20 claims
- 2753US10071374B2Apparatus and methods for creating a static and traversing thermal gradient on a microfluidic deviceWATERS TECHNOLOGIES CORP·Filed 2014·Granted Sep 11, 2018·0 cites·16 claims
- 2852US2011272855A1Techniques For Patterning Valve ComponentsWATERS TECHNOLOGIES CORP·Filed 2009·Application pending·0 cites
- 2951US2014345372A1Managing fluidic connections to microfluidic devicesWATER TECHNOLOGIES CORP·Filed 2013·Application pending·0 cites
- 3050US6962077B2System and method of measuring convection induced impedance gradients to determine liquid flow ratesWATERS INVESTMENTS LTD·Filed 2002·Granted Nov 8, 2005·0 cites·20 claims
- 3148US10996204B2Method and apparatus for scaling between chromatographic systems using highly compressible fluidsWATERS TECHNOLOGIES CORP·Filed 2018·Granted May 4, 2021·0 cites·6 claims
- 3247US10465808B2Spring-energized check valveWATERS TECHNOLOGIES CORP·Filed 2017·Granted Nov 5, 2019·0 cites·16 claims
- 3346US2019275442A1Modular extraction vessel and associated methodsWATERS TECHNOLOGIES CORP·Filed 2018·Application pending·0 cites
- 3446US2008305555A1Methods, Compositions and Devices For Performing Ionization Desorption on Silicon DerivativesWATERS INVESTMENTS LTD·Filed 2006·Application pending·0 cites
- 3545US2019257442A1Integrated pressure control device and collection vessel for compressible fluid extractionWATERS TECHNOLOGIES CORP·Filed 2019·Application pending·0 cites
- 3637US2002094580A1Photothermal absorbance detection apparatus and method of using sameFiled 2001·Application pending·0 cites
- 3737US2013071867A1Method And Apparatus For Performing Mass SpectrometryFADGEN KEITH·Filed 2010·Application pending·0 cites
- 3833US2002129664A1Non-invasive real-time flow meter and related flow measuring methodFiled 2001·Application pending·0 cites
- 3933US2002092363A1Contactless resistive heater for liquids in microenvironments and related methodsFiled 2001·Application pending·0 cites
- 4028US11404258B2Method to remove ion interferencesWATER TECH CORPORATION·Filed 2015·Granted Aug 2, 2022·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →