ClassID:

168762

G01N2030/322 - 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; Conditioning of the fluid carrier; Flow patterns; Control of physical parameters of the fluid carrier of pressure or speed pulse dampers

Recent Application in this class:
#1
20250362276
2025-11-27

ANALYTICAL DEVICE WITH SOLVENT-INFORMATION EVALUATION

#2
20240241087
2024-07-18

GRADIENT PROPORTIONING VALVE

#3
20210156829
2021-05-27

Active dampening gradient proportioning valve

#4
20210156828
2021-05-27

Passive dampening gradient proportioning valve

#5
20210156827
2021-05-27

Gradient proportioning valve

#6
20200072204
2020-03-05

Liquid delivery device and liquid chromatograph equipped with liquid delivery device

#7
20180149289
2018-05-31

Microfluidic check valve and related devices and systems

#8
20170131245
2017-05-11

SECONDARY STAGE FLUID SEPARATION DEVICE CONNECTABLE WITH PRIMARY STAGE FLUID SEPARATION DEVICE

#9
20150122655
2015-05-07

Two-dimensional fluid separation with controlled pressure

#10
20130319087
2013-12-05

Bubble reduction device, chromatography device, bubble reduction method, and bubble reduction program

#11
20120303167
2012-11-29

Coordinating injector-valve switching with pump-stroke timing to mitigate effects of pressure pulses

#12
20120003104
2012-01-05

PIEZO-CONTROLLED AND-OR PRESSURE RIPPLE COMPENSATING FLUID SEPARATION PUMP

#13
20110310390
2011-12-22

Methods and apparatus for analyzing samples and collecting sample fractions

#14
20100288027
2010-11-18

Two-unit pump for liquid chromatograph with flow sensor arrangement

#15
20100238444
2010-09-23

Methods and apparatus for analyzing samples and collecting sample fractions

#16
20080257835
2008-10-23

Device, method and apparatus for performing separations

#17
20080251141
2008-10-16

Backflow prevention for high pressure gradient systems

#18
20080210324
2008-09-04

Damper

#19
20080101970
2008-05-01

Pumping apparatus having a varying phase relationship between reciprocating piston motions

#20
20080050283
2008-02-28

Microfluidic devices and methods of use

#21
20080014652
2008-01-17

Method and Apparatus for Introducing Samples of Gas at Controlled Pressure in a gas Chromatograph

#22
20070084766
2007-04-19

Pump for liquid chromatograph

#23
20050061724
2005-03-24

Integrated apparatus for degassing and blending multiple mobile phase streams

#24
20050008516
2005-01-13

Backflow prevention for high pressure gradient systems