ClassID:

168517

G01N27/4162 - CPC Classification

Classification description:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis; Systems investigating the composition of gases, by the influence exerted on ionic conductivity in a liquid

Recent Application in this class:
#1
20260104384
2026-04-16

HYDROGEN SULFIDE DETECTION DEVICE

#2
20260009760
2026-01-08

ELECTROCHEMICAL SENSOR AND METHOD OF MANUFACTURING ELECTROCHEMICAL SENSOR

#3
20250309580
2025-10-02

CONNECTOR AND SENSOR

#4
20250224368
2025-07-10

DIFFERENTIAL ELECTROCHEMICAL MASS SPECTROMETRY FOR ONLINE GAS EVOLUTION OF POUCH CELLS

#5
20250052715
2025-02-13

CONSTANT POTENTIAL ELECTROLYTIC GAS SENSOR AND METHOD FOR MANUFACTURING CONSTANT POTENTIAL ELECTROLYTIC GAS SENSOR

#6
20250012507
2025-01-09

PRODUCTION LINE AND PRODUCTION METHOD FOR POSITIVE ELECTRODE MATERIAL OF LITHIUM-ION BATTERY

#7
20240359153
2024-10-31

METHOD AND SYSTEM FOR GENERATING INTERFERENCE SPECTRA FOR LOW DETECTION LIMITS USING REACTOR

#8
20240338635
2024-10-10

SYSTEMS AND METHODS FOR POST-HARVEST CROP QUALITY MANAGEMENT

#9
20240119367
2024-04-11

MACHINE LEARNING BASED VOC DETECTION

#10
20240094175
2024-03-21

METHOD AND APPARATUS FOR AUTOMATIC CALIBRATION

#11
20240068986
2024-02-29

ACETONE SENSOR AND ASSOCIATED METHODS

#12
20230349855
2023-11-02

CO2 MASS ESTIMATION SYSTEM, EXHAUST GAS COMPOSITION RATIO ESTIMATION METHOD, AND CO2 MASS ESTIMATION METHOD

#13
20230280306
2023-09-07

ELECTROCHEMICAL DEVICE, SENSOR, AND SENSOR SYSTEM

#14
20230260383
2023-08-17

VISIBLE RANGE DETECTION SYSTEM

#15
20230194465
2023-06-22

GAS SENSOR AND METHOD OF CONTROLLING GAS SENSOR

#16
20230061393
2023-03-02

MASS AND FORCE INDICATORS IN DIAGNOSTICS AND OUTPUT CORRECTION FOR ELECTROCHEMICAL GAS SENSORS

#17
20220381730
2022-12-01

Sensors with capacitive transduction via metamaterials for gas detection

#18
20220374811
2022-11-24

Systems and methods for post-harvest crop quality management

#19
20220244215
2022-08-04

Microfabricated electrochemical gas sensor

#20
20220236216
2022-07-28

Systems and related methods for analyzing a gas

#21
20220205974
2022-06-30

GAS DETECTION SYSTEM

#22
20220113289
2022-04-14

Odor measurement apparatus and odor data management apparatus

#23
20220113221
2022-04-14

COMPACT SENSOR COMPONENT FOR HARSH ENVIRONMENTS

#24
20210404986
2021-12-30

Systems, methods and tools for subterranean electrochemical characterization and enthalpy measurement in geothermal reservoirs

#25
20210389274
2021-12-16

SENSOR

#26
20210178352
2021-06-17

Method and system for generating interference spectra for low detection limits using reactor

#27
20210104144
2021-04-08

Visible range detection system

#28
20210033562
2021-02-04

METHOD FOR CALIBRATING AN ANALYTICAL MEASURING DEVICE AND MEASURING POINT FOR ANALYZING A PROCESS MEDIUM AND FOR CALIBRATING AN ANALYTICAL MEASURING DEVICE

#29
20200340942
2020-10-29

Integrated chemical sensor

#30
20200326264
2020-10-15

Method and device for measuring the oxygen content of the headspace gas in a container

#31
20200300806
2020-09-24

MICRO-ELECTROCHEMICAL SENSOR

#32
20200292492
2020-09-17

Ultrasonic wave transmitter, propagation time measurement device, gas concentration measurement device, propagation time measurement program, and propagation time measurement method

#33
20200292481
2020-09-17

Sensor for detecting gas analyte

#34
20200271617
2020-08-27

Electrochemical hydrogen sensor

#35
20200271546
2020-08-27

Probe carrier arrangement

#36
20200193352
2020-06-18

Systems and methods for post-harvest crop quality management

#37
20200123959
2020-04-23

Control apparatus

#38
20200096476
2020-03-26

Electronic device including gas sensor and method of operating the same

#39
20200064303
2020-02-27

GAS SENSOR ELEMENT

#40
20200018720
2020-01-16

Gas detection method, gas detection system, and gas desorption method

#41
20200018719
2020-01-16

GAS SENSOR, GAS SENSOR SYSTEM, AND METHOD OF MAKING AND USING A GAS SENSOR AND GAS SENSOR SYSTEM

#42
20200011832
2020-01-09

Method for directly measuring SO2 and other trace gases by electrochemical cell (ECC) sonde

#43
20200003718
2020-01-02

SENSOR FOR MEASURING A GAS CONCENTRATION

#44
20190339227
2019-11-07

ROOM TEMPERATURE HYDROGEN GAS SENSOR

#45
20190339226
2019-11-07

Electrochemical gas sensor

#46
20190301277
2019-10-03

Non-fouling liquid electrodes

#47
20190285578
2019-09-19

Gas sensor

#48
20190227042
2019-07-25

Odor measurement apparatus and odor data management apparatus

#49
20190204263
2019-07-04

SENSOR FOR MEASURING CONCENTRATION OF NITROGEN OXIDES AND DETECTING AMMONIA SLIP

#50
20190033248
2019-01-31

Amperometric electrochemical sensors, sensor systems and detection methods

#51
20180356381
2018-12-13

Air pollution monitoring

#52
20180346347
2018-12-06

Apparatus and method for detecting degassed cation conductivity

#53
20180322436
2018-11-08

Methods for post-harvest crop pest management

#54
20180321185
2018-11-08

Wireless sensor devices for post-harvest crop quality and pest management

#55
20180320967
2018-11-08

Methods for post-harvest crop quality management

#56
20180252668
2018-09-06

ELECTROCHEMICAL CARBON DIOXIDE COMPRESSORS USING ANION EXCHANGE MEMBRANE

#57
20180149618
2018-05-31

Gas detector

#58
20180143158
2018-05-24

BREATHER TAB AND COUNTER ELECTRODE

#59
20180128799
2018-05-10

Wireless oxygen monitor

#60
20180120246
2018-05-03

Nondestructive inspection method for coatings and ceramic matrix composites

#61
20180112582
2018-04-26

Apparatus for measuring ammonia concentration, system for measuring ammonia concentration, system for treating exhaust gas, and method for measuring ammonia concentration

#62
20180073982
2018-03-15

System for determining abnormality in a monitored area

#63
20170370877
2017-12-28

Gas sensor

#64
20170363562
2017-12-21

Electrochemical detection system and method of operation

#65
20170356323
2017-12-14

Control device of exhaust sensor

#66
20170322167
2017-11-09

Polymer / single-walled carbon nanotube composite for gas detection

#67
20170252530
2017-09-07

On-site medical gas production plant and associated operating method

#68
20170191818
2017-07-06

Position indicator and position indicating method

#69
20170168010
2017-06-15

Ion concentration sensor

#70
20170153196
2017-06-01

Device for detection of ionic conductivity and its applied measurement

#71
20170003684
2017-01-05

Method and an unmanned aerial vehicle for determining emissions of a vessel

#72
20160131614
2016-05-12

Dissolved oxygen measurement system and method of calibrating dissolved oxygen meter

#73
20150338365
2015-11-26

SENSOR

#74
20150247818
2015-09-03

Electrochemical hydrogen sensor

#75
20150144504
2015-05-28

Electrochemical detection system and method of operation

#76
20150090115
2015-04-02

On-site medical gas production plant and associated operating method

#77
20150034484
2015-02-05

GAS SENSOR

#78
20140291170
2014-10-02

ETHYLENE GAS DETECTION DEVICE AND METHODS OF USE

#79
20140262780
2014-09-18

GAS SENSOR AND METHOD OF MAKING

#80
20140231272
2014-08-21

Sulphite sensor and method for measuring sulphite concentration in a substance

#81
20140061043
2014-03-06

Alcohol-measuring device with fast operational readiness

#82
20140014535
2014-01-16

Sensor control device, sensor control method and computer readable recording medium

#83
20130319857
2013-12-05

Gas sensor control apparatus

#84
20130189791
2013-07-25

Methods for Measuring Formaldehyde Emission From One or More Samples

#85
20130180854
2013-07-18

CORRECTION COEFFICIENT SETTING METHOD OF GAS CONCENTRATION DETECTION APPARATUS, GAS CONCENTRATION DETECTION APPARATUS AND GAS SENSOR

#86
20130092538
2013-04-18

Low-temperature activity exhaust sensor

#87
20120292183
2012-11-22

Stand-Alone Water Detection Device That Includes a Hydrogen Source

#88
20100159084
2010-06-24

Tree Fruit Postharvest Chemical Sensor

#89
20100083735
2010-04-08

Measuring device

#90
20090293590
2009-12-03

Ionic liquid thin layer sensor for electrochemical and/or piezoelectric measurements

#91
20090159445
2009-06-25

Gas sensor and method of making

#92
20070295203
2007-12-27

Tree fruit postharvest chemical sensor

#93
20070175769
2007-08-02

Potentiometric pCO2 Sensor and the Fabrication Method thereof

#94
20070131550
2007-06-14

Electrochemical gas sensor

#95
20070089501
2007-04-26

Method for monitoring exhaust gas condensates

#96
20070045128
2007-03-01

CHLORINE DIOXIDE SENSOR

#97
20060175208
2006-08-10

Water-conductivity CO2 sensor

#98
20050247574
2005-11-10

Electrochemical gas detection apparatus and method comprising a permeable membrane and an aqueous electrolyte

#99
20050151541
2005-07-14

Measuring device having a plurality of potentiometric electrode pairs situated on a substrate

#100
18521507
2025-11-25

Solid state multi-electrode sensor array for real-time monitoring of multi-gas mixtures

#101
17447416
2025-07-01

Modular chemiresistive sensor for real-time ethylene monitoring

#102
16511928
2023-09-12

Method and apparatus for automatic calibration

#103
15889118
2021-10-26

Systems, methods and tools for subterranean electrochemical characterization and enthalpy measurement in geothermal reservoirs

#104
15817174
2020-11-17

Planar sensor design and pulse discharge technique hardware

#105
15586848
2018-04-10

Multiple string, multiple output digital to analog converter

#106
14980798
2017-01-17

Junction field effect transistor based biosensor