ClassID:

168439

G01N27/18 - CPC Classification

Classification description:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested

Sub-classes:
Recent Application in this class:
#1
20260153469
2026-06-04

THERMAL CONDUCTIVITY DETECTION UNIT AND GAS CHROMATOGRAPH

#2
20260118333
2026-04-30

HYBRID HYDROGEN SENSOR AND METHOD OF CONTROLLING THE SAME

#3
20250369919
2025-12-04

METHODS OF OPERATING AND CALIBRATING A GAS SENSOR, AND RELATED GAS SENSORS

#4
20250347645
2025-11-13

METHODS FOR DETERMINING AT LEAST ONE PROPERTY OF A MATERIAL

#5
20250331730
2025-10-30

NEEDLE PROBE, APPARATUS FOR SENSING COMPOSITIONAL INFORMATION, MEDICAL DRAIN, METHOD OF MEASURING A THERMAL PROPERTY, AND METHOD OF SENSING COMPOSITIONAL INFORMATION

#6
20250305978
2025-10-02

GAS SENSOR

#7
20250297980
2025-09-25

GAS SENSOR

#8
20250290887
2025-09-18

GAS SENSOR

#9
20250264429
2025-08-21

SYSTEME DE DETERMINATION D'UNE QUANTITE D'EMISSIONS DE DIOXYDE DE CARBONE RESULTANT DE L'ECHAUFFEMENT D'UN CONDUCTEUR ELECTRIQUE D'UN CABLE ELECTRIQUE PAR EFFET JOULE

#10
20250258151
2025-08-14

GAS SENSOR

#11
20250164431
2025-05-22

GENERATING A SUPPLY VOLTAGE FOR A RESISTIVE SENSOR ELEMENT

#12
20250155398
2025-05-15

GAS SENSOR

#13
20250076238
2025-03-06

SENSOR AND SENSOR SYSTEM

#14
20250067697
2025-02-27

SENSOR

#15
20250067679
2025-02-27

SYSTEMS AND METHODS FOR TESTING HEAT TRANSFER FLUIDS

#16
20250012768
2025-01-09

OZONE SENSOR WITH OFF-STOCHEOMETRIC DELAFOSSITE-TYPE COPPER OXIDE

#17
20240401858
2024-12-05

DETECTING CONTAMINATION OF A CRYOGENIC REFRIGERANT IN A CRYOGENIC REFRIGERATION SYSTEM

#18
20240241071
2024-07-18

GAS HEAT CONDUCTION TYPE HYDROGEN SENSOR HAVING INTEGRATED STRUCTURE

#19
20240230570
2024-07-11

GAS SENSOR

#20
20240151699
2024-05-09

GAS SENSOR

#21
20240151675
2024-05-09

DEVICE AND METHOD FOR DETERMINING THE THERMAL CONDUCTIVITY OF A GAS, TANK ARRANGEMENT AND VEHICLE

#22
20240133834
2024-04-25

GAS SENSOR

#23
20240077443
2024-03-07

SENSOR AND GAS CONVERSION SYSTEM

#24
20240027384
2024-01-25

SENSOR SYSTEM AND GAS SYSTEM

#25
20230361325
2023-11-09

SENSOR FOR DETECTING AT LEAST ONE PROPERTY OF A FLUID MEDIUM IN AT LEAST ONE MEASURING CHAMBER

#26
20230349853
2023-11-02

Operation of combustible gas sensor in a dynamic mode with a constant resistance setpoint

#27
20230324348
2023-10-12

Thermal conductivity detector

#28
20230304950
2023-09-28

METHODS FOR DETERMINING AT LEAST ONE PROPERTY OF A MATERIAL

#29
20230194454
2023-06-22

Multi-temperature gas sensing

#30
20220381731
2022-12-01

METHODS OF OPERATING AND CALIBRATING A GAS SENSOR, AND RELATED GAS SENSORS

#31
20220341864
2022-10-27

Gas detection device, gas detection method, and device comprising gas detection device

#32
20220333966
2022-10-20

THERMAL FLUID FLOW SENSOR

#33
20220317078
2022-10-06

Sensor, including a diaphragm that is open through a clearance, for measuring the concentration of an analysis fluid

#34
20220299461
2022-09-22

Heater Meander

#35
20220240590
2022-08-04

Electronic Cigarette

#36
20220225890
2022-07-21

NEEDLE PROBE, APPARATUS FOR SENSING COMPOSITIONAL INFORMATION, MEDICAL DRAIN, METHOD OF MEASURING A THERMAL PROPERTY, AND METHOD OF SENSING COMPOSITIONAL INFORMATION

#37
20220214197
2022-07-07

Thermal sensor device

#38
20220136988
2022-05-05

Concentration measurement device

#39
20220120702
2022-04-21

Thermal fluid sensor

#40
20220120701
2022-04-21

Thermal fluid sensor

#41
20220107285
2022-04-07

Gas sensor

#42
20220034829
2022-02-03

Thermal conductivity estimation method, thermal conductivity estimation apparatus, production method for semiconductor crystal product, thermal conductivity calculator, thermal conductivity calculation program, and, thermal conductivity calculation method

#43
20220018820
2022-01-20

Sensor and sensor module

#44
20210356301
2021-11-18

Gas sensor with an RF resonator

#45
20210293735
2021-09-23

Gas sensor

#46
20210262959
2021-08-26

Non-transitory computer-readable recording medium and thermal analysis device

#47
20210238031
2021-08-05

Method for manufacturing at least one membrane system, membrane system for a micromechanical sensor, and component

#48
20210199632
2021-07-01

Transfer line, GCMS arrangement and mounting assembly

#49
20210199612
2021-07-01

Nano-sensor for detecting gaseous components

#50
20210190617
2021-06-24

SENSOR ELEMENT AND METHOD FOR MANUFACTURING SAME, AND SENSOR DEVICE

#51
20210181135
2021-06-17

Operation of combustible gas sensor in a dynamic mode with a constant resistance setpoint

#52
20210172893
2021-06-10

Method for assessing the long-term thermal resistance of closed-cell thermal insulating foams at multiple mean temperatures

#53
20210140907
2021-05-13

Sensing apparatus and sensing method

#54
20210123876
2021-04-29

Pixel for analyzing a gaseous analyte

#55
20210055238
2021-02-25

Method and device for testing thermal conductivity of nanoscale material

#56
20210018422
2021-01-21

Surface characterization of porous solids and powder materials using flowing gas

#57
20210003525
2021-01-07

Gas sensor

#58
20200363358
2020-11-19

Systems and methods for determining at least one property of a material

#59
20200355636
2020-11-12

Methods for determining at least one property of a material

#60
20200348252
2020-11-05

Gas sensor for measuring a concentration of an analysis gas

#61
20200264150
2020-08-20

Method and probe apparatus for testing pharmaceutical products

#62
20200225181
2020-07-16

Detecting composition of a sample based on thermal properties

#63
20200173946
2020-06-04

Gas sensing method with chemical and thermal conductivity sensing

#64
20200110051
2020-04-09

Gas sensors

#65
20200080951
2020-03-12

Gas sensor device

#66
20200018714
2020-01-16

Integrated thermal sensor comprising a photonic crystal

#67
20190353607
2019-11-21

Gas sensor

#68
20190346392
2019-11-14

Reducing gas detection material and reducing gas detection sensor

#69
20190342948
2019-11-07

Electronic cigarette

#70
20190339188
2019-11-07

System and dynamic volumetric method for surface characterization of porous solids and powder materials using flowing gas

#71
20190317037
2019-10-17

Gas analyzer and gas analyzing device

#72
20190302046
2019-10-03

Gas detector and gas detection method

#73
20190301908
2019-10-03

Thermoresistive gas sensor

#74
20190293590
2019-09-26

Multi-parametric sensor with bridge structure

#75
20190204253
2019-07-04

System, apparatus and method for accurate measurement of off-chip temperature

#76
20190204251
2019-07-04

Sensor device

#77
20190162682
2019-05-30

Sensors for measuring thermal conductivity and related methods

#78
20190107502
2019-04-11

Pixel for Thermal Transport and Electrical Impedance Sensing

#79
20190086351
2019-03-21

Gas sensor

#80
20190072453
2019-03-07

Device and process for determining the size of a leak hole in a sample

#81
20190049398
2019-02-14

Gas sensor, gas detection device, gas detection method and device provided with gas detection device

#82
20190041347
2019-02-07

Gas sensor

#83
20190038176
2019-02-07

Needle probe, apparatus for sensing compositional information, medical drain, method of measuring a thermal property, and method of sensing compositional information

#84
20180328872
2018-11-15

Gas sensor device, and heating current control method for gas sensor device

#85
20180292338
2018-10-11

Gas sensing device with chemical and thermal conductivity sensing

#86
20180266988
2018-09-20

Temperature compensation method for gas sensor module using change of heater current

#87
20180188196
2018-07-05

System and method for determining one or more fluid concentrations in a fluid stream

#88
20180188088
2018-07-05

Gas sensor device

#89
20180156747
2018-06-07

Gas sensors

#90
20180100823
2018-04-12

Sensor platform including thermal conductivity sensor for analyzing the contents and surroundings of sealed packages or insulated glass units

#91
20180088066
2018-03-29

Multi-parallel sensor array system

#92
20180074000
2018-03-15

Semiconductor gas sensor device and manufacturing method thereof

#93
20180067068
2018-03-08

Thermal conductivity detector and gas chromatograph

#94
20180067067
2018-03-08

System and method of detecting explosive compounds based on rapid deflagration and differential micro-calorimetry

#95
20180052129
2018-02-22

Gas measurement device and measurement method thereof

#96
20180052124
2018-02-22

Systems and methods for determining at least one property of a material

#97
20170370782
2017-12-28

Temperature sensor with heat transfer element and fabrication method

#98
20170363589
2017-12-21

Thermal conductivity sensing device, methods for operation and uses of the same

#99
20170350841
2017-12-07

Detecting composition of a sample based on thermal properties

#100
20170343502
2017-11-30

Environment sensor system

#101
20170322173
2017-11-09

Method for producing a gas sensor device for detecting at least one gaseous analyte, and gas sensor device for detecting at least one gaseous analyte

#102
20170234818
2017-08-17

Wireless sensing devices and method for detecting hydration

#103
20170022919
2017-01-26

System for sensing and controlling fuel gas constituent levels

#104
20170019951
2017-01-19

Electronic cigarette

#105
20170016840
2017-01-19

Device for analysis of mixtures of at least two gases

#106
20160355396
2016-12-08

Single silicon wafer micromachined thermal conduction sensor

#107
20160334376
2016-11-17

Method and thermal conductivity detector

#108
20160290947
2016-10-06

GAS SENSOR

#109
20160202200
2016-07-14

Gas sensor device

#110
20160195464
2016-07-07

Particle sensor and method for manufacturing a particle sensor

#111
20160163766
2016-06-09

Integrated circuit comprising a gas sensor

#112
20160139071
2016-05-19

Gas sensor apparatus and installation structure of gas sensor apparatus

#113
20160109396
2016-04-21

Ratiometric device

#114
20160061756
2016-03-03

Gas detector and program

#115
20160003757
2016-01-07

Gas measurement device and measurement method thereof

#116
20150377813
2015-12-31

SEMICONDUCTOR GAS SENSOR DEVICE AND MANUFACTURING METHOD THEREOF

#117
20150362400
2015-12-17

Device and method for differentiating a gas in a sample

#118
20150338361
2015-11-26

Gas sensor and method for determining a concentration of gas in a two-component mixture

#119
20150285750
2015-10-08

Thermal conductivity gas sensor with amplification material

#120
20150260687
2015-09-17

Fluid state identification device

#121
20150247828
2015-09-03

Thermal flow sensor, gas sensor comprising at least one such sensor and Pirani gauge comprising at least one such sensor

#122
20150233849
2015-08-20

Protecting tube deterioration detecting apparatus and method therefor

#123
20150226713
2015-08-13

Gas concentration sensor with a suspended structure

#124
20150226688
2015-08-13

Gas detector

#125
20150219578
2015-08-06

Thermal conductivity detector

#126
20150212030
2015-07-30

Micro-hotplate device and sensor comprising such micro-hotplate device

#127
20150153294
2015-06-04

Gas detector

#128
20150097260
2015-04-09

Single silicon wafer micromachined thermal conduction sensor

#129
20150052983
2015-02-26

Method and Apparatus for the Measurement of the Mass Fraction of Water in Oil-Water Mixtures

#130
20150031142
2015-01-29

DEVICE AND METHOD FOR MEASURING GAS CHEMICAL SOLVENT ABSORPTION AND DESORPTION REACTION HEAT

#131
20140373621
2014-12-25

Method for determining at least one gas parameter of a flowing gas

#132
20140360245
2014-12-11

Functional test for gas sensors

#133
20140157866
2014-06-12

Measurement arrangement having electrically heated resistors arranged in gas paths

#134
20140102172
2014-04-17

Integrated circuit comprising a thermal conductivity based gas sensor

#135
20140079091
2014-03-20

Heat flux sensor with increased resolution

#136
20140076024
2014-03-20

Thermal flow sensor with vibrating element and gas sensor comprising at least one such sensor

#137
20140020453
2014-01-23

Method and Apparatus for the Measurement of the Mass Fraction of Water in Oil-Water Mixtures

#138
20140020448
2014-01-23

Combustible gas detecting device

#139
20130298638
2013-11-14

Combustible gas detection device

#140
20130256825
2013-10-03

Integrated circuit comprising a gas sensor

#141
20130091929
2013-04-18

Gas sensor and method of manufacturing the same

#142
20130081445
2013-04-04

Gas sensor and method for determining a concentration of gas in a two-component mixture

#143
20130075255
2013-03-28

MEMS electrochemical gas sensor

#144
20130065146
2013-03-14

ELECTRIC POWER GENERATION SYSTEM AND GAS MEASURING SYSTEM

#145
20120287962
2012-11-15

Calorific value measuring system and calorific value measuring method

#146
20120247184
2012-10-04

Gas detecting apparatus and gas detecting method

#147
20120216593
2012-08-30

ELECTRONIC CHEMICAL TRACE DETECTOR

#148
20120116242
2012-05-10

Electrical conductivity probes for measuring attributes of tissue

#149
20120073357
2012-03-29

Method For Determining Gas Concentrations in a Gas Mixture Based on Thermal Conductivity Measurements With Correction of Measured Values

#150
20120042712
2012-02-23

Thermal conductivity detector and gas chromatograph using same

#151
20120024043
2012-02-02

Thermal conductivity detectors

#152
20110246099
2011-10-06

Method and apparatus for the measurement of the mass fraction of water in oil-water mixtures

#153
20110203104
2011-08-25

Thermal and electrical conductivity probes and methods of making the same

#154
20110185789
2011-08-04

CALORIFIC VALUE CALCULATION FORMULA GENERATING SYSTEM, CALORIFIC VALUE CALCULATION FORMULA GENERATING METHOD, CALORIFIC VALUE CALCULATING SYSTEM, AND CALORIFIC VALUE CALCULATING METHOD

#155
20110168139
2011-07-14

Apparatus for measuring a hydrocarbon concentration and internal combustion engine

#156
20110107817
2011-05-12

Particle sensor

#157
20110107816
2011-05-12

Thermal conductivity detector

#158
20110048127
2011-03-03

Thermal humidity sensor

#159
20110029274
2011-02-03

Self heating monitor for SiGe and SOI CMOS devices

#160
20100314700
2010-12-16

Fabricating method for micro gas sensor and the same

#161
20100242621
2010-09-30

Method and apparatus for the measurement of the mass fraction of water in oil-water mixtures

#162
20100218614
2010-09-02

Thermal humidity sensor

#163
20100212400
2010-08-26

DETECTION UNIT MOLD PACKAGE AND FLUID DISCRIMINATION SENSOR MODULE USING THE MOLD PACKAGE

#164
20100197035
2010-08-05

Sensor for measuring syngas ratio in the high temperature and pressure condition

#165
20100186482
2010-07-29

Sensor for measuring hydrocarbon content in a flow of gas in a purge line

#166
20100154510
2010-06-24

Method for sensing gas composition and pressure

#167
20100116024
2010-05-13

Thermal gas sensor

#168
20100089118
2010-04-15

Method for measuring a fluid composition parameter by means of a flow sensor

#169
20100055801
2010-03-04

Sensor for detecting and differentiating chemical analytes

#170
20100011844
2010-01-21

Fluid Identification Method and Fluid Identification Apparatus

#171
20090292512
2009-11-26

PROCESS FOR DETERMINING THE DISTILLATION CHARACTERISTICS OF A LIQUID PETROLEUM PRODUCT CONTAINING AN AZEOTROPIC MIXTURE

#172
20090277246
2009-11-12

Thermal conductivity measuring method and apparatus, and gas component ratio measuring apparatus

#173
20090215180
2009-08-27

Electronic chemical trace detector

#174
20090193872
2009-08-06

Gas sensor chip and gas sensor provided therewith

#175
20090133472
2009-05-28

Gas sensor

#176
20090090359
2009-04-09

Respiratory anaesthesia apparatus with device for measuring the xenon concentration

#177
20080205478
2008-08-28

Urea sensor

#178
20080177199
2008-07-24

System and method of using thermal and electrical conductivity of tissue

#179
20080175299
2008-07-24

Thermal and electrical conductivity probes and methods of making the same

#180
20080066531
2008-03-20

Liquid type identifying method and liquid type identifying device

#181
20080034841
2008-02-14

Process for measuring the concentration of gases

#182
20080025366
2008-01-31

Probe for Measuring Thermal and Hydraulic Properties

#183
20070262359
2007-11-15

Self heating monitor for SiGe and SOI CMOS devices

#184
20070237206
2007-10-11

Thermal sensor and measurement device using the same

#185
20070151331
2007-07-05

Liquid type identification device

#186
20070131567
2007-06-14

Sensor for measuring syngas ratios under high temperature and pressure conditions

#187
20060266103
2006-11-30

Process for measuring the concentration of gases

#188
20060169024
2006-08-03

Gas sensor and fuel cell system and automobile employing the same

#189
20060047474
2006-03-02

Self heating monitor for SiGe and SOI CMOS devices

#190
20060026949
2006-02-09

Urea concentration identifying system, method for indentifying urea concentration and automobile exhaust gas reducing system using same, and method for reducing automobile exhaust gas

#191
20060011170
2006-01-19

Gasoline type identifying system and method for identifying gasoline type

#192
20060010987
2006-01-19

Method and apparatus to measure flow rate

#193
20050265422
2005-12-01

Differential thermal sensors

#194
20050228596
2005-10-13

Gas sensor, fuel cell system therewith, and automobile therewith

#195
20050206391
2005-09-22

Method for qualifying joints and contacts of electric circuits

#196
20050092066
2005-05-05

Differential compensated vapor sensor

#197
20050066707
2005-03-31

Gas detector

#198
20050063865
2005-03-24

Phased VII micro fluid analyzer having a modular structure

#199
20050042139
2005-02-24

Phased micro analyzer V, VI

#200
20050028580
2005-02-10

Sensor module having a sensor element surrounded by a heating element

#201
20050025215
2005-02-03

Micromechanical thermal-conductivity sensor having a porous cover

#202
20050006236
2005-01-13

Gas sensor