ClassID:

168569

G01N27/74 - CPC Classification

Classification description:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids

Sub-classes:
Recent Application in this class:
#1
20260104388
2026-04-16

BIO SENSOR HAVING THERMAL DISSIPATION VIA COIL LAYOUT

#2
20260086069
2026-03-26

ION SENSING WITH DEEP TRENCH ISOLATION INDUCTORS

#3
20250369949
2025-12-04

WATER/OIL EMULSION SENSOR AND DOWNHOLE TOOL INCLUDING SUCH SENSORS

#4
20250362268
2025-11-27

MATERIAL ANALYSIS APPARATUS AND MATERIAL ANALYSIS METHOD

#5
20250314618
2025-10-09

Plate Cushion Device Having A Compression Gap Lock

#6
20250306003
2025-10-02

DETERMINING A VOLUME OF METALLIC SWARF IN A WELLBORE FLUID

#7
20250297986
2025-09-25

GAS ANALYZER

#8
20250244274
2025-07-31

SYSTEM AND METHOD FOR PROCESSING ANALYTE SIGNALS IN GMR-BASED DETECTION OF BIOMARKERS

#9
20250110081
2025-04-03

MEASURING SYSTEM FOR A MONITORING SYSTEM

#10
20250102489
2025-03-27

SENSOR AND METHOD FOR DETERMINING FRACTIONS OF OIL, WATER, AND SOLIDS IN DRILLING FLUID IN REAL TIME

#11
20250076251
2025-03-06

DEVICE FOR THE INDUCTIVE DETERMINATION OF THE ELECTRICAL CONDUCTIVITY OF A MEDIUM CONTAINED IN A CONTAINER

#12
20250010293
2025-01-09

NUCLEIC ACID SEQUENCING BY SYNTHESIS USING MAGNETIC SENSOR ARRAYS

#13
20240390905
2024-11-28

DEVICES AND METHODS FOR ELECTROMAGNETIC SENSING OF LATERAL FLOW ASSAYS

#14
20240345026
2024-10-17

MAGNETIC FILM FUEL DETECTOR

#15
20240280537
2024-08-22

PROBE FOR CHECKING THE PRESENCE OF PARAMAGNETIC PARTICLES IN A TANK

#16
20240280536
2024-08-22

PERMANENT ELECTROMAGNET SENSOR TO DETECT THE END OF REVERSE CEMENTING

#17
20240241069
2024-07-18

MEASURING APPARATUS FOR THE ONLINE MEASUREMENT OF AT LEAST ONE PROPERTY OF PROCESS LIQUIDS AT AT LEAST TWO DIFFERENT FLOW RATES FOR THE PRODUCTION OF A MEDICAL LIQUID

#18
20240125225
2024-04-18

MONITORING FLUID/CEMENT TYPE/QUALITY OUTSIDE OF CASING OF A BOREHOLE

#19
20240019397
2024-01-18

METHOD OF ESTIMATING OXYGEN CONCENTRATION IN SILICON SINGLE CRYSTAL, METHOD OF MANUFACTURING SILICON SINGLE CRYSTAL, AND SILICON SINGLE CRYSTAL MANUFACTURING APPARATAUS

#20
20230393222
2023-12-07

ANALYZING APPARATUS, MAGNETIC FIELD GENERATING APPARATUS FOR ANALYZING APPARATUS, AND ANALYZING METHOD

#21
20230314375
2023-10-05

GAS MEASURING DEVICE

#22
20230266412
2023-08-24

Magnetically activated acoustic nanotracers

#23
20230194475
2023-06-22

Surface isolation resistance compatibility test system and method

#24
20230175994
2023-06-08

OIL STATE DETECTION APPARATUS

#25
20230146993
2023-05-11

WEAR DETECTION SYSTEM WITH METAL DEBRIS SENSOR ASSEMBLY

#26
20230143925
2023-05-11

METHOD OF MONITORING WITH METAL DEBRIS SENSOR ASSEMBLY

#27
20230114548
2023-04-13

Measuring system for determining gas concentrations

#28
20230102733
2023-03-30

System and method for GMR-based detection of biomarkers

#29
20230058962
2023-02-23

Plate Cushion Device Having A Compression Gap Lock

#30
20230031122
2023-02-02

MAGNETOELASTIC MICROCARRIERS AND MONITORING SYSTEM

#31
20230024801
2023-01-26

System and method for measuring a multiphase fluid

#32
20230013564
2023-01-19

Electromagnetic Sensor for Measuring Electromagnetic Properties of a Fluid and/or a Solid Comprising a Flexible Substrate

#33
20220365029
2022-11-17

Systems and Methods for Rapid Measurement of Magnetic Nanoparticles in Magnetic Biosensors

#34
20220308014
2022-09-29

Detection / removal of metal contamination

#35
20220299475
2022-09-22

Magneto-optical detection and discernment of biofluid crystals

#36
20220296912
2022-09-22

Systems and methods for measuring magnetic fields from solvated target molecules using a magnetoresistive sensor

#37
20220221437
2022-07-14

System and method for electrical and magnetic monitoring of a material

#38
20220193670
2022-06-23

Nucleic acid sequencing by synthesis using magnetic sensor arrays

#39
20220155257
2022-05-19

Oil debris monitor to detect mechanical failures in high noise environments

#40
20220137001
2022-05-05

Magnetic material concentration measuring device

#41
20220097051
2022-03-31

APPARATUS FOR THE QUANTIFICATION OF BIOLOGICAL COMPONENTS DISPERSED IN A FLUID

#42
20220065818
2022-03-03

Magnetic permeability sensor with permanent magnet for downhole sensing

#43
20220011267
2022-01-13

Measuring device

#44
20210370289
2021-12-02

System and method for sample preparation in GMR-based detection of biomarkers

#45
20210369137
2021-12-02

Real-time monitoring of COVID-19 progress using magnetic sensing and machine learning

#46
20210262897
2021-08-26

Magnetic chip detector and method of use

#47
20210172927
2021-06-10

System and method for processing analyte signals in GMR-based detection of biomarkers

#48
20210138462
2021-05-13

System and method for GMR-based detection of biomarkers

#49
20210072184
2021-03-11

Measuring device comprising a magnetic field generator and associated measurement method

#50
20210033500
2021-02-04

METHOD FOR DOSING AN AMOUNT OF LIQUID WITH A PERISTALTIC PUMP

#51
20200386099
2020-12-10

Production-logging sensor

#52
20200371080
2020-11-26

SYSTEM AND METHOD FOR ELECTRICAL AND MAGNETIC MONITORING OF A MATERIAL

#53
20200333293
2020-10-22

Oil debris monitor to detect mechanical failures in high noise environments

#54
20200264135
2020-08-20

Active oil debris monitor particle detection and monitoring system

#55
20200217603
2020-07-09

Cleaning of a 3D printed article

#56
20200166478
2020-05-28

Method for measuring multiple parameters of drilling fluid

#57
20200080877
2020-03-12

Fluid contaminant detection using noise levels in magnetic flow meter sensor signals

#58
20200049638
2020-02-13

Method for measuring change of cell in real time and device therefor

#59
20190346406
2019-11-14

GAS DETECTION TECHNIQUE

#60
20190331557
2019-10-31

System and method for determining an amount of fungal particles in air

#61
20190226289
2019-07-25

Degaussing ferrous material within drilling fluids

#62
20190210037
2019-07-11

DEVICES AND METHODS FOR SEPARATING PARTICLES

#63
20190187036
2019-06-20

Particle counter and classification system

#64
20190162699
2019-05-30

Fluid cup and cup holder for use with an electromagnetic detection device

#65
20190162641
2019-05-30

Apparatus for measuring blood coagulation data, and use method and calibration method thereof

#66
20190064113
2019-02-28

Magneto-optical detection and discernment of biofluid crystals

#67
20190025385
2019-01-24

GAS-SENSITIVE HALL DEVICE

#68
20180364141
2018-12-20

Systems and methods for detecting chips in fluid of aircraft engine

#69
20180312899
2018-11-01

SYSTEM AND METHOD FOR RAPID MICROBIAL DETECTION AND ANALYSIS

#70
20180292354
2018-10-11

System and Method for Measuring the Concentration of Magnetic Ballast in a Slurry

#71
20180209268
2018-07-26

Apparatus and method for downhole in-situ determination of fluid viscosity

#72
20180172665
2018-06-21

Systems and methods for assessing blood platelet function

#73
20180172636
2018-06-21

System for monitoring machine fluids by measuring fluctuations in a magnetic field

#74
20180143150
2018-05-24

APPARATUS AND METHODS THAT USE MAGNETIC INDUCTION SPECTROSCOPY TO MONITOR TISSUE FLUID CONTENT

#75
20180136201
2018-05-17

Characterizing liquids using magnetic discs

#76
20180136185
2018-05-17

System and method for electrical and magnetic monitoring of a material

#77
20180117597
2018-05-03

DEVICES AND METHODS FOR SEPARATING PARTICLES

#78
20180090678
2018-03-29

Durable miniature gas composition detector having fast response time

#79
20180073970
2018-03-15

Oil debris monitoring (ODM) using active valve configuration control

#80
20170370883
2017-12-28

MULTI-SPOT CONTAMINANT DETECTION WITH MAGNETOSTRICTIVE SENSORS

#81
20170370882
2017-12-28

Detection of viable pathogens in analyte using culture chamber with magnetostrictive sensors

#82
20170363578
2017-12-21

METHOD AND DEVICE FOR BIOMOLECULE PREPARATION AND DETECTION USING MAGNETIC ARRAY

#83
20170363377
2017-12-21

Cleaning of a 3D printed article

#84
20170328881
2017-11-16

Detection and quantification of acetylamantadine in urine samples

#85
20170313429
2017-11-02

Method and apparatus of detecting liquid water in a cloud

#86
20170269036
2017-09-21

Sensor Apparatus

#87
20170254191
2017-09-07

Well monitoring with optical electromagnetic sensing system

#88
20170199155
2017-07-13

System for Measuring the Concentration of Magnetic Ballast in a Slurry

#89
20170160248
2017-06-08

Semiconductor gas sensor using magnetic tunnel junction elements

#90
20170160235
2017-06-08

Gas sensing using magnetic tunnel junction elements

#91
20170097338
2017-04-06

Characterizing liquids using magnetic discs

#92
20170082581
2017-03-23

Gas-sensitive hall device

#93
20170074853
2017-03-16

MULTI-MODAL FLUID CONDITION SENSOR PLATFORM AND SYSTEM THEREFOR

#94
20170074816
2017-03-16

Electromagnetic steam energy/quality, flow, and fluid property sensor and method

#95
20170072405
2017-03-16

Devices and methods for separating particles

#96
20170042437
2017-02-16

Contactless or non-invasive physical properties measurement instrument using eddy current-reduced high Q resonant circuit probe

#97
20160370323
2016-12-22

DEVICE AND METHOD FOR PERFORMING BLOOD THROMBOELASTOGRAPHIC ASSAYS BY MAGNETIC SENSING

#98
20160370275
2016-12-22

Flow through debris sensor

#99
20160363560
2016-12-15

Metabolite Biomarkers for the Detection of Esophageal Cancer Using NMR

#100
20160299105
2016-10-13

Magneto-mechanical sensor for paramagnetic oxygen measurement

#101
20160169838
2016-06-16

Systems and methods for improved physiological monitoring

#102
20160111635
2016-04-21

Durable miniature gas composition detector having fast response time

#103
20160109407
2016-04-21

Method and apparatus for sensing magnetic radiation through tagging

#104
20160084924
2016-03-24

Magnetic permeability sensor and magnetic permeability detecting method, dielectric permittivity sensor and dielectric permittivity detecting method, and magnetic permeability and dielectric permittivity sensor and magnetic permeability and dielectric permittivity detecting method

#105
20150345289
2015-12-03

Microfluidic oscillating tube densitometer for downhole applications

#106
20150276641
2015-10-01

Measuring apparatus and method for detecting ferromagnetic particles

#107
20150260669
2015-09-17

Non-contact fluid resistivity measurement

#108
20150233867
2015-08-20

System for measuring the concentration of magnetic ballast in a slurry

#109
20150219600
2015-08-06

Method for operating a resonance-measuring system and respective resonance system

#110
20150184510
2015-07-02

Apparatus and Method for Downhole In-Situ Determaination of Fluid Viscosity

#111
20150177116
2015-06-25

Magnetic chip detector/collector

#112
20150097553
2015-04-09

DEVICE AND METHOD FOR MEASURING VERY LOW FREQUENCY ELECTROMAGNETIC FIELDS

#113
20150070000
2015-03-12

Single magnet fluid densitometer

#114
20150024473
2015-01-22

Device and method for performing blood thromboelastographic assays by magnetic sensing

#115
20140292317
2014-10-02

Durable miniature gas composition detector having fast response time

#116
20140148349
2014-05-29

Metabolite Biomarkers for the Detection of Esophageal Cancer Using NMR

#117
20140141526
2014-05-22

Method and device for biomolecule preparation and detection using magnetic array

#118
20140130575
2014-05-15

METHOD AND APPARATUS FOR ELECTRICALLY INDICATING A GAS CHARACTERISTIC

#119
20140103910
2014-04-17

Differential transformer type magnetic sensor and image forming apparatus

#120
20140053640
2014-02-27

Sensor device for detecting flowable media, a pressure device and a measuring method

#121
20130306566
2013-11-21

Devices and methods for separating particles

#122
20130261995
2013-10-03

Method of on-line rapid fluid density measurement using a piezoresistive micro-cantilever

#123
20130147473
2013-06-13

Detection system using magnetic resistance sensor

#124
20130122513
2013-05-16

DETECTION OF MAGNETICALLY LABELED BIOLOGICAL COMPONENTS

#125
20130055789
2013-03-07

Method and apparatus for sensing magnetic radiation through tagging

#126
20130033255
2013-02-07

Gas magnetometer

#127
20120299584
2012-11-29

Measurement system of ferromagnetic particles

#128
20120266656
2012-10-25

Device for generating magnetic field, method for preparing such device and gas sensor for measurement of paramagnetic gas component

#129
20120203529
2012-08-09

Paramagnetic gas sensor apparatus and adjustment method

#130
20120203470
2012-08-09

Measurement Method

#131
20120164916
2012-06-28

Method and apparatus for measurement and control of magnetic particle concentration in a magnetorheological fluid

#132
20120142542
2012-06-07

Metabolite biomarkers for the detection of esophageal cancer using NMR

#133
20120131988
2012-05-31

Gas sensor

#134
20120086439
2012-04-12

Graphite-based sensor

#135
20120035882
2012-02-09

Apparatus and methods for imbalance compensation

#136
20120029845
2012-02-02

Apparatus and method for fluid monitoring

#137
20110298455
2011-12-08

Integrated Microfluidic Sensor System with Magnetostrictive Resonators

#138
20110252868
2011-10-20

Device for measuring the concentration of paramagnetic gases

#139
20110094293
2011-04-28

Oxygen Monitor

#140
20110057651
2011-03-10

Oxygen concentration measurement with GMR

#141
20110031972
2011-02-10

Method and system of determining an electrical property of a formation fluid

#142
20110011159
2011-01-20

Device for determining the oxygen content of a gas

#143
20110001490
2011-01-06

Conductivity sensor with switching between transmitting and receiving coil

#144
20100268469
2010-10-21

Microfluidic oscillating tube densitometer for downhole applications

#145
20100064771
2010-03-18

TRANSITION METAL-DOPED OXIDE SEMICONDUCTOR EXHIBITING ROOM-TEMPERATURE FERROMAGNETISM

#146
20090320558
2009-12-31

Gas analyzer having a structure including cavities and volumes

#147
20090189599
2009-07-30

Device and method for measuring concentration of magnetic material

#148
20080160634
2008-07-03

Method and device for biomolecule preparation and detection using magnetic array

#149
20080024117
2008-01-31

Ultra-sensitive magnetoreduction measurement system and ultra-sensitive, wash-free assay using the same

#150
20070227230
2007-10-04

Measuring gas components together with a paramagnetic gas

#151
20070084265
2007-04-19

Detector mounting in paramagnetic gas analyzers

#152
20060060815
2006-03-23

Transition metal-doped oxide semiconductor exhibiting room-temperature ferromagnetism

#153
20060060776
2006-03-23

Method of sensing a gas by detecting change in magnetic properties

#154
20050212507
2005-09-29

Paramagnetic oxygen sensing apparatus and method

#155
20050113662
2005-05-26

Magnetic sensor and method for analysing a fluid

#156
17586752
2023-12-19

Grease measurement device and method

#157
14309500
2015-08-04

Magnetic gas sensors