ClassID:

168738

G01N2030/202 - CPC Classification

Classification description:

Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation; Column chromatography; Preparation or injection of sample to be analysed; Injection using a sampling valve rotary valves

Recent Application in this class:
#1
20260079133
2026-03-19

INJECTION VALVE

#2
20260002914
2026-01-01

FLUID VALVE FOR AN ANALYSIS DEVICE

#3
20250283539
2025-09-11

ROTARY CONE VALVE FOR ENHANCING AERODYNAMIC STABILITY

#4
20250277773
2025-09-04

FLOW-PATH SWITCHING DEVICE AND LIQUID CHROMATOGRAPH

#5
20250180524
2025-06-05

ROTATABLE SAMPLE NEEDLE FOR ANALYZER

#6
20250164452
2025-05-22

SAMPLE INJECTION WITH FLUIDIC CONNECTION BETWEEN FLUID DRIVE UNIT AND SAMPLE ACCOMMODATION VOLUME

#7
20250130208
2025-04-24

SHEAR VALVE COMPENSATING FOR STATOR-ROTOR SURFACE ALIGNMENT VARIATIONS

#8
20250060340
2025-02-20

CONFIGURING AN INJECTOR FOR EMULATING OPERATION OF ANOTHER INJECTOR

#9
20250003504
2025-01-02

Pendulum Valve

#10
20240303319
2024-09-12

STACK PIVOT EXPLOIT DETECTION AND MITIGATION

#11
20240241086
2024-07-18

FLUIDICALLY COUPLING OF SAMPLING AND SEPARATION PATHS

#12
20240077460
2024-03-07

Sample injection with fluidic connection between fluid drive unit and sample accommodation volume

#13
20240044848
2024-02-08

VARIABLE LOAD CHROMATOGRAPHY VALVE FOR FLUID ANALYSIS

#14
20240027407
2024-01-25

FLUIDIC ROTARY VALVE

#15
20240024797
2024-01-25

MULTI-COLUMN CHROMATOGRAPHY SYSTEMS WITH ROTATABLE VALVE ASSEMBLIES

#16
20240011951
2024-01-11

SAMPLING DEVICE

#17
20230408458
2023-12-21

ROTARY FOR ROTARY SHEAR VALVE

#18
20230256439
2023-08-17

MICROFLUIDIC COMPONENT WITH METAL LAYER STACK AND FLUID CONDUIT ELEMENT MADE OF ANOTHER MATERIAL BONDED WITH IT

#19
20230251230
2023-08-10

LIQUID-CHROMATOGRAPHY APPARATUS HAVING DIFFUSION-BONDED TITANIUM COMPONENTS

#20
20230160860
2023-05-25

Stack pivot exploit detection and mitigation

#21
20230138406
2023-05-04

ROTARY VALVE WITH COMPENSATION ELEMENT TO COMPENSATE FOR AXIAL MISALIGNMENT

#22
20230022972
2023-01-26

DEVICES AND METHODS FOR MIXING LIQUIDS BY MOVING SAID LIQUIDS BACK AND FORTH BETWEEN A PUMP AND A MEASURING CELL, AND PHYSICOCHEMICAL ANALYSIS OF THE LIQUIDS MIXED IN THIS MANNER

#23
20220334090
2022-10-20

Sampler for liquid chromatography

#24
20220283127
2022-09-08

Branching off fluidic sample with low influence on source flow path

#25
20220236234
2022-07-28

Rotary valve having bypass state

#26
20220128519
2022-04-28

Configuring an injector for emulating operation of another injector

#27
20220120719
2022-04-21

Sample injection with fluidic connection between fluid drive unit and sample accommodation volume

#28
20220090689
2022-03-24

Injection valve for an analysis apparatus

#29
20220050087
2022-02-17

Non-contiguous sample fractionating and concatenating device and dual online multidimensional liquid chromatography system having the same

#30
20210404996
2021-12-30

Chromatographic dimension selection in multidimensional liquid chromatography

#31
20210389282
2021-12-16

Injector serving multiple sample separation apparatuses

#32
20210388909
2021-12-16

Multiple channel selector valve

#33
20210381608
2021-12-09

Valve for transferring at least one fluid

#34
20210208114
2021-07-08

Multi-injection mode valve module

#35
20210199625
2021-07-01

Chromatography valve for fluid analysis

#36
20210190734
2021-06-24

Sample metering and injection for liquid chromatography

#37
20210156826
2021-05-27

Sample injection for liquid chromatography using split solvent flow

#38
20210156493
2021-05-27

Valve arrangement having valve module and base module

#39
20210148868
2021-05-20

Autosampler and fluid chromatograph

#40
20210123537
2021-04-29

Multiport valve for water quality analyzer

#41
20210063363
2021-03-04

Techniques for checking state of analyzers

#42
20210063360
2021-03-04

Sample injector and sampling method, in particular for liquid chromatography

#43
20210055268
2021-02-25

Sample handling and dispatching individual sample packages for fluid processing

#44
20210033572
2021-02-04

Sample dispatching with fluidic sample retaining

#45
20210010609
2021-01-14

High pressure valve with multi-piece stator assembly

#46
20200363379
2020-11-19

NON-STICKING ROTARY VALVE

#47
20200333300
2020-10-22

Branching off fluidic sample with low influence on source flow path

#48
20200309743
2020-10-01

Dual mode sample manager

#49
20200284768
2020-09-10

Valve for high and ultra-high pressure liquid chromatography

#50
20200276728
2020-09-03

Manufacture of a microfluidic component by additive manufacturing

#51
20200225197
2020-07-16

Sample injection with fluidic connection between fluid drive unit and sample accommodation volume

#52
20200182837
2020-06-11

Column oven

#53
20200166483
2020-05-28

Sampler for liquid chromatography

#54
20200150098
2020-05-14

Mechanisms and methods for liquid sample introduction into a chromatography system

#55
20200150097
2020-05-14

Mechanisms and methods for liquid sample introduction into a chromatography system

#56
20200033302
2020-01-30

Autosampler and liquid chromatograph

#57
20190383777
2019-12-19

Flow channel mechanism and liquid chromatograph including the same

#58
20190331648
2019-10-31

Coupled analytical instruments for dual mode FTIR/GC-FTIR

#59
20190302065
2019-10-03

Preparative liquid chromatograph

#60
20190285521
2019-09-19

Inline dilution and autocalibration for ICP-MS speciation analysis

#61
20190282925
2019-09-19

High pressure valve with two-piece stator assembly

#62
20190265207
2019-08-29

Branching off fluidic sample with low influence on source flow path

#63
20190250130
2019-08-15

System for subjecting a sample to chromatographic analysis

#64
20190234915
2019-08-01

Managing fluidic connections to microfluidic devices

#65
20190120800
2019-04-25

Auto-sampling system for automatically acquiring a sample

#66
20190120799
2019-04-25

Rotary injection valve with internal sample load channel

#67
20190101513
2019-04-04

Systems and methods for chromatographic analysis

#68
20180364203
2018-12-20

Online dilution for a liquid chromatography system using a sample metering pump

#69
20180328899
2018-11-15

LIQUID-CHROMATOGRAPHY APPARATUS HAVING DIFFUSION-BONDED TITANIUM COMPONENTS

#70
20180299414
2018-10-18

Gas sample injection device for gas chromatographic analysis, and method thereof

#71
20180284076
2018-10-04

Sampling method for the chromatographic analysis of the headspace

#72
20180275104
2018-09-27

Chromatography system and a method therefor

#73
20180252329
2018-09-06

High pressure valve with multi-piece stator assembly

#74
20180164259
2018-06-14

High pressure valve with multi-piece stator assembly

#75
20180161697
2018-06-14

High pressure valve with two-piece stator assembly

#76
20180128794
2018-05-10

Method of analysing gas chromatography data

#77
20180128792
2018-05-10

Liquid chromatography system for sample loading with a trap column

#78
20180106769
2018-04-19

Rotary valve and a chromatography system

#79
20180088091
2018-03-29

Multi-injection mode valve module

#80
20180080908
2018-03-22

INJECTION VALVE ASSEMBLY WITH LOOPING INTERNAL SAMPLE LOOP

#81
20180031526
2018-02-01

Controllable injector sample dilution for a liquid chromatography system

#82
20170343520
2017-11-30

Branching off fluidic sample with low influence on source flow path

#83
20170343518
2017-11-30

Sample injection with fluidic connection between fluid drive unit and sample accommodation volume

#84
20170336369
2017-11-23

System and method for performing a chromatography injection sequence using a single injection valve

#85
20170321813
2017-11-09

Rotary valve and systems

#86
20170284980
2017-10-05

High-pressure control valve for high-performance liquid chromatography

#87
20170219540
2017-08-03

Temporary storage of sample portions for artefact-preventing fluid processing

#88
20170176400
2017-06-22

Dual online liquid chromatography device and control method thereof

#89
20170173496
2017-06-22

Low-retention pre-columns: a straightforward approach to enable larger injection volumes and reduce extra-column effects in HPLC

#90
20170146495
2017-05-25

Method and valve in continuous chromatography system

#91
20170122920
2017-05-04

Coupled analytical instruments for dual mode FTIR/GC-FTIR

#92
20160377580
2016-12-29

Sampler for liquid chromatography

#93
20160377184
2016-12-29

Fluid switching valve and liquid chromatograph apparatus using the same

#94
20160334031
2016-11-17

Uninterrupted fluid flow while modulating fluid

#95
20160313289
2016-10-27

Rotary valve

#96
20160310870
2016-10-27

Chromatography system and method

#97
20160305916
2016-10-20

Rotary valve

#98
20160274069
2016-09-22

Autosampler and liquid chromatograph

#99
20160209376
2016-07-21

Interconnection mechanism for column and needle

#100
20160187304
2016-06-30

Apparatus and method for introducing sample into a separation unit of a chromatography system without disrupting a mobile phase

#101
20160139094
2016-05-19

Multi-position, micro-fluidic valve assembly with multiple radial grooves to enable individual or combined flows

#102
20160139093
2016-05-19

HPLC sample introduction with coupling sample reservoirs in parallel between mobile phase drive and separation unit

#103
20160077061
2016-03-17

Sampling systems and methods of using the same

#104
20160069844
2016-03-10

Controllable injector sample dilution for a liquid chromatography system

#105
20160061788
2016-03-03

Switching valve for flow type analysis apparatus

#106
20160054274
2016-02-25

Injector sample dilution for a liquid chromatography system

#107
20160033049
2016-02-04

Multi-path selector valve

#108
20160025688
2016-01-28

Diaphragm valve with sealing assembly, chromatographic system including same and method of operation thereof

#109
20150247827
2015-09-03

Liquid sampling valve

#110
20150184774
2015-07-02

Heated rotary valve for chromotography

#111
20150047730
2015-02-19

Method and apparatus for sample injection in liquid chromatography

#112
20150047422
2015-02-19

Introducing samples into supercritical fluid chromatography systems

#113
20150040648
2015-02-12

Liquid chromatography device, liquid chromatography analysis process, and non-transitory computer-readable medium for liquid chromotography analysis

#114
20140373605
2014-12-25

Liquid sampling valve

#115
20140366739
2014-12-18

HPLC sample introduction with bypass channel

#116
20140360605
2014-12-11

Passage-switching valve

#117
20140352827
2014-12-04

Flow path switching valve

#118
20140306105
2014-10-16

Liquid chromatography systems and methods

#119
20140261816
2014-09-18

Flow channel switching valve

#120
20140261815
2014-09-18

Flow channel switching valve

#121
20140261814
2014-09-18

Flow channel switching valve

#122
20140261811
2014-09-18

Flow channel switching valve

#123
20140191146
2014-07-10

Rotary shear valve with a two-pin drive shaft for liquid chromatography applications

#124
20140137967
2014-05-22

Valves having protective coatings

#125
20140102568
2014-04-17

Fluidic interface valve assembly with elastomeric ferrule device

#126
20140053930
2014-02-27

Valve having a deformable part and use of the valve

#127
20140053910
2014-02-27

High pressure fluidic switching valve having variable pressure loading

#128
20140043018
2014-02-13

Switching valve for liquid chromatography

#129
20140042351
2014-02-13

Switching valve for high-performance liquid chromatography

#130
20140042350
2014-02-13

Switching valve for liquid chromatography

#131
20140042349
2014-02-13

Switching valve for liquid chromatography

#132
20140007660
2014-01-09

Fluid switching valve

#133
20130304393
2013-11-14

Method of analysing gas chromatography data

#134
20130276520
2013-10-24

Rotary shear injector valve with displaced rotor grooves

#135
20130126720
2013-05-23

Method of switching ports of a switching valve of a gas chromatography-mass spectrometry apparatus

#136
20130068977
2013-03-21

Multi-mode injection valve

#137
20130067997
2013-03-21

Single injection valve for HPLC combining sample introduction, wash cycles and diagnosis

#138
20130056084
2013-03-07

Method and apparatus for sample injection in liquid chromatography

#139
20130049302
2013-02-28

Static and dynamic seals

#140
20130000390
2013-01-03

Liquid chromatograph system

#141
20120305464
2012-12-06

On-line sampling from a process source

#142
20120227470
2012-09-13

Chromatography Apparatus Having An Integrated Core

#143
20120145617
2012-06-14

Multi-functional option valve, multifunctional fully automatic liquid chromatography system including the same, and method for analyzing sample using the same

#144
20120125440
2012-05-24

Rotary column selector valve

#145
20120119128
2012-05-17

Rotary shear injector valve with coated stator surface

#146
20120111127
2012-05-10

Autosampler with control unit for performing a cleaning operation

#147
20120103887
2012-05-03

Liquid chromatograph system

#148
20110272855
2011-11-10

Techniques For Patterning Valve Components

#149
20110240899
2011-10-06

Random access rotary valve

#150
20110219890
2011-09-15

Sample injector

#151
20110209565
2011-09-01

Sample injecting device

#152
20110198272
2011-08-18

Preparative separation/purification system

#153
20110186511
2011-08-04

Liquid chromatography apparatus and liquid chromatography

#154
20110185797
2011-08-04

Analyzing device and method for controlling same

#155
20110179856
2011-07-28

ANALYZING DEVICE

#156
20110020939
2011-01-27

Chromatography-based monitoring and control of multiple process streams

#157
20110016955
2011-01-27

Sample Dilution for Chromatography of Multiple Process Streams

#158
20100326215
2010-12-30

Sample introduction method

#159
20100281959
2010-11-11

Shear valve with DLC comprising multi-layer coated member

#160
20100276617
2010-11-04

FLOW CHANNEL SWITCHING VALVE

#161
20100269936
2010-10-28

Channel switching valve

#162
20100206411
2010-08-19

Sample introduction device

#163
20100187177
2010-07-29

Two-valve arrangement for liquid chromatography

#164
20100171055
2010-07-08

Liquid-chromatography apparatus having diffusion-bonded titanium components

#165
20100127200
2010-05-27

Random access rotary valve

#166
20100101989
2010-04-29

Shear valve with silicon carbide member

#167
20100058841
2010-03-11

Flow distributing valve

#168
20100043539
2010-02-25

Device and methods for reducing pressure and flow perturbations in a chromatographic system

#169
20100032604
2010-02-11

Rotation valve for sample injection

#170
20100032603
2010-02-11

Selection valve

#171
20090194483
2009-08-06

MICROFLUIDIC DEVICE HAVING MONOLITHIC SEPARATION MEDIUM AND METHOD OF USE

#172
20090188868
2009-07-30

Microfluidic device for sample analysis

#173
20090158815
2009-06-25

Multi-stage injector for fluid analysis

#174
20090145205
2009-06-11

Autosampler for high-performance liquid chromatography

#175
20090126467
2009-05-21

WASHING DEVICE FOR LIQUID CHROMATOGRAPHY INJECTORS

#176
20090050212
2009-02-26

Method and apparatus for sample injection in liquid chromatography

#177
20090039024
2009-02-12

Apparatus and methods for performing steps of a multi-step process in parallel

#178
20090014078
2009-01-15

Diaphragm-sealed valve having intermediate communication ports

#179
20090007624
2009-01-08

Continuous flow sample introduction apparatus and method

#180
20080290309
2008-11-27

Pin valve assembly

#181
20080229810
2008-09-25

Sample injector, in particular for high-power liquid chromatography

#182
20080178693
2008-07-31

Valve

#183
20080053543
2008-03-06

Valve module and methods for simulated moving bed chromatography

#184
20070251302
2007-11-01

Flow path switching valve, high performance liquid chromatography using the same and analytical method thereof

#185
20070144594
2007-06-28

Multiport rotary valve

#186
20070140918
2007-06-21

Fluidic separation devices and methods with reduced sample broadening

#187
20070107499
2007-05-17

Flow path switching valve and high performance liquid chromatograph using the same

#188
20070071638
2007-03-29

Parallel processing microfluidic chip

#189
20070068873
2007-03-29

Valve and process for interrupted continuous flow chromatography

#190
20060263901
2006-11-23

System for introducing standard gas into sample container

#191
20060260700
2006-11-23

Microluidic valve having two revolving valve elements

#192
20060260695
2006-11-23

Device and method for controlling the flow of fluid in a conduit

#193
20060219637
2006-10-05

Devices, systems and methods for liquid chromatography

#194
20060191581
2006-08-31

Rotating valve

#195
20060128028
2006-06-15

Analysis of semiconductor copper plating bath chemistry using in process mass spectrometry

#196
20060045810
2006-03-02

Sample injector for liquid analysis

#197
20060042686
2006-03-02

Rotary valve and analytical chromatographic system using the same

#198
20060011548
2006-01-19

Mobile phase gradient generation microfluidic device

#199
20050037517
2005-02-17

Loop dilution system

#200
20050019216
2005-01-27

Apparatus for introducing a sample into a flowthrough analysis system

#201
15400654
2018-08-28

Valve assembly with bottom bypass ports

#202
14612494
2017-01-10

Valve assembly with bottom bypass ports

#203
14163311
2015-09-29

Injection valve