ClassID:

168421

G01N27/046 - CPC Classification

Classification description:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance; Circuits provided with temperature compensation

Recent Application in this class:
#1
20250383310
2025-12-18

WATER QUALITY INSPECTION METHOD AND FLOATING DEVICE OF WATER QUALITY INSPECTION BASED ON MICROCONTROLLER

#2
20250314607
2025-10-09

METHODS AND SYSTEMS FOR DETERMINING A TARGET GAS CONCENTRATION IN A FLUID ENVIRONMENT

#3
20250264426
2025-08-21

SENSOR

#4
20250130193
2025-04-24

METHOD FOR SENSING VOLATILE FATTY ACID AND DEVICE FOR MEASURING VOLATILE FATTY ACID

#5
20250123229
2025-04-17

LIQUID SENSOR AND DETECTION METHOD

#6
20240402113
2024-12-05

THERMO-ELECTRICAL WIRELESS SENSOR FOR HIGH-FREQUENCY ELECTRICAL IMPEDANCE WITH SOLAR RECHARGE

#7
20240361268
2024-10-31

OIL CONDITION DETERMINATION SYSTEM AND OIL CONDITION DETERMINATION METHOD

#8
20240011930
2024-01-11

System and method for gas sensing

#9
20230194453
2023-06-22

Thermo-piezoresistive embedded wireless sensor with real-time concrete monitoring

#10
20230142205
2023-05-11

Sensor system for fluids

#11
20230127293
2023-04-27

Electronic device including flexible display module and method for detecting damage to the display module

#12
20220412912
2022-12-29

FLUID CONDITION SENSING SYSTEM AND METHODS

#13
20220187230
2022-06-16

Methods and Systems for Determining a Target Gas Concentration in a Fluid Environment

#14
20220026383
2022-01-27

Thermo-piezoresistive embedded wireless sensor with real-time concrete monitoring

#15
20210396698
2021-12-23

Apparatus for monitoring a fluid

#16
20210247368
2021-08-12

METHOD AND APPARATUS TO GENERATE BREATH VOC SIGNATURES THAT CAN BE CORRELATED TO PHYSIOLOGICAL METRICS INDICATIVE OF SPECIFIC MEDICAL CONDITIONS

#17
20210063335
2021-03-04

Apparatus and method for evaluating the quality of at least one solder joint between a printed circuit board and a current sensor

#18
20200326294
2020-10-15

Method of enhancing judgment of gas detector

#19
20200326293
2020-10-15

INTEGRATED, MINIATURIZED, WIRELESS SENSING ELECTRONIC PLATFORM FOR HIGH RESOLUTION GAS SENSING

#20
20200200695
2020-06-25

Resistance-integrated gas sensor

#21
20200064321
2020-02-27

Low power circuitry for biasing a multi-channel gas sensor array and to act as a transducer for a digital back-end

#22
20200064290
2020-02-27

DIGITAL BACK END, CONTROLLING AND OPTIMIZING AN ANALOG FRONT END TO MEASURE AN ARRAY OF NANOMATERIAL-BASED GAS SENSORS, SUPPLYING DATA TO PATTERN RECOGNITION ALGORITHMS

#23
20190204251
2019-07-04

Sensor device

#24
20190154605
2019-05-23

Multi-parallel sensor array system

#25
20190033241
2019-01-31

METHOD AND APPARATUS FOR EVALUATING DEGREE OF CONTAMINATION OF FOUNDRY SAND

#26
20180340901
2018-11-29

GAS SENSOR PLATFORM AND THE METHOD OF MAKING THE SAME

#27
20180238857
2018-08-23

Electric-field imager for assays

#28
20170269015
2017-09-21

METHOD FOR PREDICTING A MEASURED VALUE, AND CONDUCTIVITY SENSOR FOR EXECUTING THE METHOD

#29
20170241930
2017-08-24

Systems, apparatus, and methods for identifying species in potentially time-varying mixtures of fluids

#30
20170205368
2017-07-20

CMOS integrated microheater for a gas sensor device

#31
20170067841
2017-03-09

GAS SENSOR PLATFORM AND THE METHOD OF MAKING THE SAME

#32
20160370419
2016-12-22

Devices, methods, and systems for localizing a fault on a live cable

#33
20160238578
2016-08-18

Method for measuring gas concentrations based on sensor response times

#34
20160195486
2016-07-07

Method and Apparatus for Detection, Identification and Quantification of Chemical or Biological Material through Modification of Operating Conditions

#35
20160161457
2016-06-09

Apparatus and method for detecting filter contamination of a fuel cell

#36
20160131607
2016-05-12

METHOD OF COMBINED USE OF INFRARED CAMERA, NON-CONTACT INFRARED SENSOR, OR CONTACT TEMPERATURE SENSOR WITH INSULATION RESISTANCE TESTER FOR AUTOMATIC TEMPERATURE NORMALIZATION

#37
20150285755
2015-10-08

System method and apparatus for humidity sensor temperature compensation

#38
20150097588
2015-04-09

Apparatus for measuring electrical conductivity in liquid

#39
20150028889
2015-01-29

Low-profile wireless passive resonators for sensing

#40
20140157866
2014-06-12

Measurement arrangement having electrically heated resistors arranged in gas paths

#41
20130207668
2013-08-15

Simplified resistance based belt inspection

#42
20130186169
2013-07-25

Method for detecting the type of lambda probes

#43
20110030461
2011-02-10

Measuring device for detecting moisture and temperature of a flowing medium

#44
20090120202
2009-05-14

Agricultural working machine for measuring components of a crop material

#45
14859943
2018-10-23

Electric-field imager for assays