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Waters (WAT)

134 patents

Page 6 of 7
Utility
Multi-dimensional chromatographic system for analyzing multiple sample components
12 Oct 20
A chromatography system includes a first chromatography column for receiving and separating a flow stream, a plurality of traps configured to trap a plurality of distinct flow segments exiting the first chromatography column during separation of the flow stream, and a second chromatography column operatively associated with the plurality of traps for receiving and separating the distinct flow segments.
Amanda B. Dlugasch, Thomas E. Wheat, Daniel Root, Jean-Michel Plankeele, Isabelle Francois, Edward R. Aig
Filed: 24 Jan 17
Utility
Methods, compositions, devices, and kits, for performing phospholipid separation
12 Oct 20
Methods, kits and devices for separating phospholipids and proteins from small molecules in biochemical samples can feature an apparatus having a wetting barrier, at least one frit and a separation media.
Pamela C. Iraneta, Thomas H. Walter, Xin Zhang, Daniel P. Walsh, Kevin D. Wyndham, Raymond P. Fisk
Filed: 29 Mar 18
Utility
Online dilution for a liquid chromatography system using a sample metering pump
12 Oct 20
An apparatus for diluting a sample in a liquid chromatography system includes a metering pump, a sample needle and a sample valve.
Joshua A. Burnett, John M. Auclair
Filed: 12 Jun 18
Utility
Chromatography column assembly
12 Oct 20
Described is a chromatographic column assembly that includes an outer tube comprising a metal, a first conduit disposed within the outer tube, a second conduit disposed within the outer tube, and a first joint located between the first conduit and the second conduit.
Joseph D. Michienzi, Keith Fadgen, Wade P. Leveille, Raymond P. Fisk, Frank John Marszalkowski, Jr.
Filed: 24 May 18
Utility
Gas liquid separator for chromatography applications
5 Oct 20
Examples of gas liquid separators include a chamber, a fluid mixture inlet, a gas outlet and a liquid outlet.
Emily J. Berg, Joshua A. Shreve, Edwin H. Denecke
Filed: 23 Oct 17
Utility
Systems, devices, and methods for threshold analyte calibration and quantitation using threshold analyte calibration
5 Oct 20
Provided herein are definitive screening techniques for qualitatively and quantitatively detecting analytes in biological specimens.
Thomas G. Rosano, Michelle Wood
Filed: 15 Mar 16
Utility
Solvent preheating system for liquid chromatography
28 Sep 20
A heater assembly used in chromatography includes a thermally conductive base having a chamber extending fully through the base with an opening at a first side of the base and at a second side of the base, and a cavity with an opening at the second side of the base.
Joshua A. Shreve, Greg Kheyfets, Paul Keenan, Paul E. Linderson
Filed: 3 Feb 16
Utility
Apparatus for controlling sample position in a liquid chromatography system
28 Sep 20
Described is an apparatus for controlling a position of a sample in a liquid chromatography system.
Joshua A. Burnett, James E. Usowicz, Marc Lemelin
Filed: 10 Jan 11
Utility
Porous inorganic/organic hybrid materials with ordered domains for chromatographic separations and processes for their preparation
14 Sep 20
Porous hybrid inorganic/organic materials comprising ordered domains are disclosed wherein the ordered domains are ordered radially, and having the formula (A)x(B)y(C)z (Formula I) or the formula [A]y[B]x (Formula III), wherein A, B, C, x, y and z in Formula I and A, B, x and y in Formula III are further defined herein, and wherein diffraction peak maxima observed for the material exhibit a 2θ position that excludes diffraction peaks resulting from atomic-range order that are associated with amorphous material.
Kevin D. Wyndham, John E. O'Gara
Filed: 23 Sep 15
Utility
High pressure fitting for supercritical fluid chromatography
14 Sep 20
Described is a mobile phase fitting having reduced corrosion and erosion.
Jonathan L. Belanger, Sylvain Cormier, Steven D. Trudeau, Paul Keenan, Daniel J. McCormick
Filed: 29 Jul 18
Utility
Techniques for display and processing of mass spectral data
7 Sep 20
Processing mass spectral data may include performing one or more experiments using one or more samples, each experiment including mass analysis using a mass spectrometer; acquiring one or more raw mass spectral data sets as a result of performing the one or more experiments; receiving selection criteria; filtering the one or more raw mass spectral data sets in accordance with the selection criteria; and generating a chromatogram as a result of said filtering, wherein the chromatogram displays signal intensity as a function of scan time for a plurality of scan times and includes a non-zero signal intensity at each scan time only if, at the scan time, the selection criteria is met and otherwise the chromatogram includes a zero signal intensity at the scan time.
Douglas M. Stevens
Filed: 10 Sep 15
Utility
Select valve for liquid chromatography
24 Aug 20
A liquid chromatography system includes a pumping system with a selector valve in fluidic communication with a pump inlet.
Kurt D. Joudrey, Maruth Sok
Filed: 6 Dec 12
Utility
Systems, methods, and devices for detecting leaks in a chromatography system
24 Aug 20
Systems, methods, and devices for detecting leaks in chromatography systems are disclosed.
Moon Chul Jung, Jonathan L. Belanger, Xiangjin Song, Abhijit Tarafder, Joseph A. Jarrell, Wade P. Leveille
Filed: 15 Jan 18
Utility
Chromatographic materials for the separation of unsaturated molecules
17 Aug 20
The present disclosure relates to a method of separating a compound of interest, particularly unsaturated compound(s) of interest, from a mixture.
Darryl W. Brousmiche, Jacob N. Fairchild, Jason F. Hill, Giorgis Isaac, Michael F. Morris, Kevin D. Wyndham
Filed: 7 Aug 18
Utility
Techniques for display and processing of mass spectral data
3 Aug 20
Processing mass spectral data may include performing one or more experiments using one or more samples, each experiment including mass analysis using a mass spectrometer; acquiring one or more raw mass spectral data sets as a result of performing the one or more experiments; receiving selection criteria; filtering the one or more raw mass spectral data sets in accordance with the selection criteria; and generating a chromatogram as a result of said filtering, wherein the chromatogram displays signal intensity as a function of scan time for a plurality of scan times and includes a non-zero signal intensity at each scan time only if, at the scan time, the selection criteria is met and otherwise the chromatogram includes a zero signal intensity at the scan time.
Douglas M. Stevens
Filed: 10 Sep 15
Utility
Gas liquid separator and associated systems and methods
20 Jul 20
Exemplary embodiments are directed to a gas liquid separator that includes a chamber, a fluid mixture inlet, a solvent outlet and a gas outlet.
Joshua A. Shreve
Filed: 23 Oct 17
Utility
Spatial temperature gradients in liquid chromatography
6 Jul 20
Methods for focusing analyte peaks in liquid chromatography using a spatial temperature gradient are provided.
Michael O. Fogwill, Joseph D. Michienzi, Martin Gilar, Abhijit Tarafder
Filed: 24 Feb 16
Utility
Systems, methods, and devices for detecting leaks in a chromatography system
22 Jun 20
Systems, methods, and devices for detecting leaks in chromatography systems are disclosed.
Abhijit Tarafder, Moon Chul Jung, Jonathan L. Belanger, Xiangjin Song, Wade P. Leveille, Darryl W. Brousmiche
Filed: 15 Jan 18
Utility
Method and an apparatus for analyzing a complex sample
22 Jun 20
A method of analyzing a complex sample includes performing a sequential chromatographic-IMS-MS analysis of a sample to obtain a plurality of experimental mass spectra having isotopic clusters, wherein each spectrum of the plurality of spectra is associated with a chromatographic retention time and an ion-mobility drift time.
Scott J. Geromanos, Marc V. Gorenstein, Daniel Golick, Steven J. Ciavarini
Filed: 28 Oct 18
Utility
Chromatography filter
1 Jun 20
A filter for a chromatography system includes a filter body having an exterior wall, a cavity, an interior wall surrounding the cavity and a channel extending between the exterior and interior walls.
Michael R. Jackson, Mark W. Moeller
Filed: 12 Dec 16
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