ClassID:

168939

G01N2030/8872 - 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; Integrated analysis systems specially adapted therefor, not covered by a single one of the groups  -  analysis specially adapted for the sample impurities

Recent Application in this class:
#1
20250258147
2025-08-14

Radiopharmaceutical Production System and Quality Control System Utilizing High Performance Liquid Chromatography

#2
20250172532
2025-05-29

METHOD FOR DETECTING FOOD CONTAMINATION USING STABLE ISOTOPE-LABELED STANDARDS

#3
20240426793
2024-12-26

METHODS FOR CHROMATOGRAPHY AND CHROMATOGRAPHY MEDIUM REUSE

#4
20240241095
2024-07-18

CHROMATOGRAPHY COLUMN FOR THE SEPARATION OF SURFACTANTS

#5
20240053317
2024-02-15

ANALYTICAL DETERMINATION OF DISSOLVED GAS CONCENTRATION IN WATER PIPELINES

#6
20220048887
2022-02-17

IMPURITIES OF AMIDE-LIKE DERIVATIVES AND USE THEREOF

#7
20220023280
2022-01-27

ANALOGS OF PRIDOPIDINE, THEIR PREPARATION AND USE

#8
20210285920
2021-09-16

Detection method for n-nitrosodimethylamine impurities

#9
20200348271
2020-11-05

Method for determining impurities in polyalkylene ethers or polyalkylene amines and use thereof

#10
20200030308
2020-01-30

Analogs of pridopidine, their preparation and use

#11
20190366234
2019-12-05

High resolution and semi-preparative recycling chromatography system for isolation and preparation of unknown trace impurities in pharmaceutical products

#12
20190185505
2019-06-20

Process of controlling the impurities of clindamycin hydrochloride

#13
20190178857
2019-06-13

Information processing device, information processing method, and information processing program

#14
20190170712
2019-06-06

Analysis device

#15
20190030016
2019-01-31

Analogs of pridopidine, their preparation and use

#16
20180284077
2018-10-04

Methods for analysis and resolution of preparations of dianhydrogalactitol and derivatives or analogs thereof

#17
20180224405
2018-08-09

Method for analyzing related substances of a pharmaceutical composition containing a polymeric carrier

#18
20180088092
2018-03-29

Sorbent tube holder

#19
20180086710
2018-03-29

Determining degradation of 3,4-diaminopyridine

#20
20170219538
2017-08-03

Method for detecting impurities in ammonium hydroxide

#21
20170212086
2017-07-27

Methods for determining low sulfate concentrations in synthetic urea samples, produced in a manufacturing process and containing high levels of impurities

#22
20170199166
2017-07-13

Methods for determining relative response factors for impurity analysis using liquid chromatography with absorbance and evaporative light scattering detection

#23
20160327526
2016-11-10

Method for ion detection

#24
20160041131
2016-02-11

Methods for quantitating water using ionic liquid salts

#25
20150374677
2015-12-31

Analogs of pridopidine, their preparation and use

#26
20150301008
2015-10-22

Method for ion detection

#27
20150238918
2015-08-27

Automated radiopharmaceutical production and quality control system

#28
20150027206
2015-01-29

Analytical methods for analyzing and determining impurities in dianhydrogalactitol

#29
20140315318
2014-10-23

Analytical methods for analyzing and determining impurities in dianhydrogalactitol

#30
20140017798
2014-01-16

Analytical methods for analyzing and determining impurities in dianhydrogalactitol

#31
20130130309
2013-05-23

Radiopharmaceutical production system and quality control system utilizing high performance liquid chromatography

#32
20130074580
2013-03-28

Methods for quantitating water using ionic liquid salts

#33
20120083039
2012-04-05

Method for quantitatively determining impurities in glycerin

#34
20110232365
2011-09-29

Method for analyzing petroleum-based fuels and engine oils for biodiesel contamination

#35
20110228268
2011-09-22

Method Of Analyzing A Composition Containing Impurities

#36
20110198291
2011-08-18

Purifying agent for oily liquid containing polychlorinated biphenyls

#37
20110126609
2011-06-02

Method and apparatus for analysis of poly (biphenyl chloride) in electrical insulating oil

#38
20110041589
2011-02-24

NEW HPCL METHOD

#39
20100307226
2010-12-09

APPARATUS, KITS AND METHODS FOR DETERMINING THE PRESENCE OR ABSENCE OF MINERALOCORTICOIDS IN SAMPLES

#40
20100120158
2010-05-13

Method for analyzing petroleum-based fuels and engine oils for biodiesel contamination

#41
20090277255
2009-11-12

Real-time, on-line analysis for the quantification of trihalomethane species within drinking water supplies

#42
20060196247
2006-09-07

Chromatographic methods for measuring impurities in a gas sample

#43
20050059156
2005-03-17

Method for detecting contaminants in pharmaceutical products