Inventor
FADGEN KEITH
US28 patents
⚠️ This page may combine multiple inventors who share the name “FADGEN KEITH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WATERS TECHNOLOGIES CORP
15 patentsUS10953346B2Mar 23, 2021
Systems, methods, and devices providing solvent container identification and incorporation
WATERS TECHNOLOGIES CORP2 citations71
US11105778B2Aug 31, 2021
Method and apparatus for injecting a chromatographic sample
WATERS TECHNOLOGIES CORP2 citations70
US11275061B2Mar 15, 2022
Reconfigurable fluidic manifold for a liquid chromatography system
WATERS TECHNOLOGIES CORP0 citations62
US10866218B2Dec 15, 2020
Managing fluidic connections to microfluidic devices
WATERS TECHNOLOGIES CORP1 citations62
US12247962B2Mar 11, 2025
Micro solid phase extraction devices and methods
WATERS TECHNOLOGIES CORP1 citations60
US10823713B2Nov 3, 2020
Systems, methods, and devices for providing pressurized solvent flow
WATERS TECHNOLOGIES CORP1 citations60
US11717770B2Aug 8, 2023
Variable fluidic restrictor having selective restriction
WATERS TECHNOLOGIES CORP0 citations59
US11325055B2May 10, 2022
Variable fluidic restrictor having selective restriction
WATERS TECHNOLOGIES CORP0 citations59
US11061003B2Jul 13, 2021
Method and apparatus for injecting a chromatographic sample
WATERS TECHNOLOGIES CORP0 citations59
US10996204B2May 4, 2021
Method and apparatus for scaling between chromatographic systems using highly compressible fluids
WATERS TECHNOLOGIES CORP0 citations51
US10802002B2Oct 13, 2020
Chromatography column assembly
WATERS TECHNOLOGIES CORP0 citations51
US10071374B2Sep 11, 2018
Apparatus and methods for creating a static and traversing thermal gradient on a microfluidic device
WATERS TECHNOLOGIES CORP0 citations50
US9662595B2May 30, 2017
Liquid-chromatography conduit assemblies having high-pressure seals
WATERS TECHNOLOGIES CORP0 citations49
US12259369B2Mar 25, 2025
Micro solid phase extraction devices and methods
WATERS TECHNOLOGIES CORP0 citations48
US10465808B2Nov 5, 2019
Spring-energized check valve
WATERS TECHNOLOGIES CORP0 citations41
GERHARDT GEOFF C
4 patentsUS9115815B2Aug 25, 2015
Variable-volume injection valve
GERHARDT GEOFF C10 citations83
US8173070B2May 8, 2012
Sample injector system for liquid chromatography
GERHARDT GEOFF C8 citations83
US9396916B2Jul 19, 2016
Electrokinetically controlled calibrant delivery
GERHARDT GEOFF C2 citations62
US8679332B2Mar 25, 2014
Flow sensing apparatus used to monitor/provide feedback system to a split flow pumping system
GERHARDT GEOFF C0 citations51
WATERS INVESTMENTS LTD
3 patentsUS7332087B2Feb 19, 2008
Flow sensing apparatus used to monitor/provide feedback to a split flow pumping system
WATERS INVESTMENTS LTD8 citations73
US7059185B2Jun 13, 2006
System and method of measuring convection induced impedance gradients to determine liquid flow rates
WATERS INVESTMENTS LTD4 citations62
US6962077B2Nov 8, 2005
System and method of measuring convection induced impedance gradients to determine liquid flow rates
WATERS INVESTMENTS LTD0 citations52