Inventor
FOGWILL MICHAEL O
US47 patents
Patents
47 patentsUS10274463B2Apr 30, 2019
Static spatial thermal gradients for chromatography at the analytical scale
WATERS TECHNOLOGIES CORP2 citations73
US10191020B2Jan 29, 2019
Flame ionization detection burner assemblies for use in compressible fluid-based chromatography systems
WATERS TECHNOLOGIES CORP2 citations73
US10151733B2Dec 11, 2018
Catalytic oxidation of polar modifiers in chromatographic mobile phases
WATERS TECHNOLOGIES CORP4 citations73
US10006890B2Jun 26, 2018
Thermally modulated variable restrictor for normalization of dynamic split ratios
WATERS TECHNOLOGIES CORP3 citations73
US9768004B2Sep 19, 2017
Systems, devices, and methods for connecting a chromatography system to a mass spectrometer
WATERS TECHNOLOGIES CORP6 citations73
US9719971B2Aug 1, 2017
Microfluidic flame ionization detector
WATERS TECHNOLOGIES CORP3 citations71
US12181453B2Dec 31, 2024
Chromatography column positioning assemblies
WATERS TECHNOLOGIES CORP0 citations62
US12051582B2Jul 30, 2024
Coaxial introduction of calibrant in a flow path with analyte to an ion source
WATERS TECHNOLOGIES CORP0 citations62
US12013380B2Jun 18, 2024
System and method for controlling fluid flow within a liquid chromatography system
WATERS TECHNOLOGIES CORP0 citations62
US11764049B2Sep 19, 2023
Coaxial introduction of calibrant in a flow path with analyte to an ion source
WATERS TECHNOLOGIES CORP0 citations62
US11340198B2May 24, 2022
System and method for controlling fluid flow within a liquid chromatography system
WATERS TECHNOLOGIES CORP0 citations62
US11150224B2Oct 19, 2021
System and method for sample introduction within a chromatography system
WATERS TECHNOLOGIES CORP0 citations62
US10955394B2Mar 23, 2021
System and method for diagnosing a condition of a restrictor
WATERS TECHNOLOGIES CORP0 citations62
US10401332B2Sep 3, 2019
System and method for reducing chromatographic band broadening in separation devices
WATERS TECHNOLOGIES CORP1 citations62
US12379354B2Aug 5, 2025
Ported end fitting for a liquid chromatography column with an integrated valve/tee having additional input and/or output
WATERS TECHNOLOGIES CORP0 citations61
US12203906B2Jan 21, 2025
Dynamically adjusting set points for a heating/cooling element of a chromatography column using available information
WATERS TECHNOLOGIES CORP0 citations61
US12007370B2Jun 11, 2024
Reducing thermal gradients in chromatography columns with sub-ambient cooling/super-ambient heating and radial distribution
WATERS TECHNOLOGIES CORP0 citations61
US11554331B2Jan 17, 2023
Method and apparatus for minimizing the chromatographic band distortion of a back pressure regulator
WATERS TECHNOLOGIES CORP0 citations61
US11378556B2Jul 5, 2022
System and method for controlling fluid flow within a chromatography system
WATERS TECHNOLOGIES CORP0 citations61
US11169125B2Nov 9, 2021
Mass spectrometer ion source with integrated column
WATERS TECHNOLOGIES CORP0 citations61
US10371673B2Aug 6, 2019
Carbon dioxide based chromatography systems including multiple carbon dioxide pumps
WATERS TECHNOLOGIES CORP1 citations61
US12474307B2Nov 18, 2025
Solvent delivery with a reduced volume single stroke pumping arrangement providing continuous solvent flow
WATERS TECHNOLOGIES CORP0 citations60
US11986751B2May 21, 2024
Seal for separation device
WATERS TECHNOLOGIES CORP0 citations60
US10359403B2Jul 23, 2019
Carbon dioxide based chromatography systems including multiple pressure control devices
WATERS TECHNOLOGIES CORP1 citations60
US11185795B2Nov 30, 2021
Techniques for thermally insulating a chromatographic column
WATERS TECHNOLOGIES CORP0 citations59
US12181452B2Dec 31, 2024
Use of vapor deposition coated flow paths for improved chromatography of metal interacting analytes
WATERS TECHNOLOGIES CORP0 citations57
US11340197B2May 24, 2022
Mechanisms and methods for liquid sample introduction into a chromatography system
WATERS TECHNOLOGIES CORP0 citations57
US11994500B2May 28, 2024
Techniques for temperature control of separation devices and optical detection devices of mass analysis systems
WATERS TECHNOLOGIES CORP0 citations56
US11624734B2Apr 11, 2023
Chromatographic dimension selection in multidimensional liquid chromatography
WATERS TECHNOLOGIES CORP0 citations52
US10877006B2Dec 29, 2020
Flame ionization detection burner assemblies for use in compressible fluid-based chromatography systems
WATERS TECHNOLOGIES CORP0 citations52
US10830742B2Nov 10, 2020
Catalytic oxidation of polar modifiers in chromatographic mobile phases
WATERS TECHNOLOGIES CORP0 citations52
US9664654B2May 30, 2017
Flame ionization detection for supercritical fluid chromatography employing a matched separation column and flame burner
WATERS TECHNOLOGIES CORP1 citations52
US9625428B2Apr 18, 2017
Modulated flame gas flow rates in flame-based detectors
WATERS TECHNOLOGIES CORP0 citations52
US12320787B2Jun 3, 2025
Insulated serial column chromatography arrangements and systems
WATERS TECHNOLOGIES CORP0 citations51
US12163934B2Dec 10, 2024
Parallel insulated chromatography columns
WATERS TECHNOLOGIES CORP0 citations51
US11473998B2Oct 18, 2022
System and method for detecting high pressure seal leaks in chromatographic pumps
WATERS TECHNOLOGIES CORP0 citations51
US11280769B2Mar 22, 2022
Mechanisms and methods for liquid sample introduction into a chromatography system
WATERS TECHNOLOGIES CORP0 citations51
US11020687B2Jun 1, 2021
Methods for scaling between chromatographic systems using highly compressible fluids
WATERS TECHNOLOGIES CORP0 citations51
US10996204B2May 4, 2021
Method and apparatus for scaling between chromatographic systems using highly compressible fluids
WATERS TECHNOLOGIES CORP0 citations51
US12163933B2Dec 10, 2024
Compact liquid chromatography system providing thermal management and detection
WATERS TECHNOLOGIES CORP0 citations50
US11733216B2Aug 22, 2023
Matching thermally modulated variable restrictors to chromatography separation columns
WATERS TECHNOLOGIES CORP0 citations50
US10852279B2Dec 1, 2020
Method and apparatus for flame ionization detection for chromatography
WATERS TECHNOLOGIES CORP0 citations50
US10071374B2Sep 11, 2018
Apparatus and methods for creating a static and traversing thermal gradient on a microfluidic device
WATERS TECHNOLOGIES CORP0 citations50
US12582926B2Mar 24, 2026
Method of operating a liquid chromatography arrangement, a liquid chromatography arrangement, and a chromatography system
WATERS TECHNOLOGIES CORP0 citations46
US11747312B2Sep 5, 2023
Fluidic configuration for a multidimensional liquid chromatography system
WATERS TECHNOLOGIES CORP0 citations45
US10823712B2Nov 3, 2020
Modifier stream elution of trap column for multidimensional compressible fluid-based chromatography
WATERS TECHNOLOGIES CORP0 citations42
US10705060B2Jul 7, 2020
Spatial temperature gradients in liquid chromatography
WATERS TECHNOLOGIES CORP0 citations41