ClassID:

169093

G01N33/2847 - CPC Classification

Classification description:

Investigating or analysing materials by specific methods not covered by groups -; Oils; viscous liquids; paints; inks; Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel Water in oil

Recent Application in this class:
#1
20260153471
2026-06-04

Sensor Device and Method for Determination of Properties of a Liquid

#2
20260110595
2026-04-23

AUTOMATIC DETECTION METHOD AND DEVICE FOR DETECTING SUBSTANCE COMPOSITION IN VISCOUS MATERIAL

#3
20260098851
2026-04-09

OIL EVALUATION APPARATUS, OIL EVALUATION SYSTEM, INTERNAL COMBUSTION ENGINE-MOUNTED DEVICE, OIL EVALUATION METHOD, AND NON-TRANSITORY STORAGE MEDIUM

#4
20260086261
2026-03-26

OIL-WATER IDENTIFICATION METHOD BASED ON CONDUCTIVITY DISPERSION CHARACTERISTICS OF UNDISTURBED FORMATION

#5
20260086015
2026-03-26

SYSTEMS AND PROCESSES FOR MONITORING LIQUID CONDENSATE AND NATURAL GAS LIQUIDS

#6
20260079102
2026-03-19

SPECTROPHOTOMETRIC MEASUREMENT OF WATER IN HYDROCARBONS VIA WATER DROPLET COUNTING

#7
20260071987
2026-03-12

OIL LUBRICANT QUALITY SENSOR FOR A LUBRICANT SUPPORTED ELECTRIC MOTOR AND AN OIL COOLED INVERTER

#8
20260065206
2026-03-05

HYBRID MODELING SYSTEM FOR OILFIELD PERFORMANCE OPTIMIZATION

#9
20260036529
2026-02-05

FLUID MONITORING AND CONTAMINANT DETECTION IN HYDRAULIC CYLINDERS USING HIGH-FREQUENCY ELECTROMAGNETIC SIGNALS

#10
20260002901
2026-01-01

POLAR LIQUID SENSING APPARATUS

#11
20250383337
2025-12-18

APPROACH TO DETERMINE WATER CUT IN OIL AND GAS PROCESS FACILITY

#12
20250369949
2025-12-04

WATER/OIL EMULSION SENSOR AND DOWNHOLE TOOL INCLUDING SUCH SENSORS

#13
20250369948
2025-12-04

METHOD FOR DEVELOPMENT OF SMART SENSOR USING REAL TIME HYBRID AI WITH PHYSICS DRIVEN MACHINE LEARNING AS ADVISORY FOR OIL IN WATER

#14
20250369946
2025-12-04

METHOD FOR REAL TIME PHYSICS DRIVEN MACHINE LEARNING BASED PREDICTIVE AND PREVENTIVE ADVISORY FOR OIL IN PRODUCED WATER ESTIMATION

#15
20250369819
2025-12-04

LEAK DETECTION IN TRANSFORMERS

#16
20250341463
2025-11-06

SELF-CALIBRATING THREE-PHASE FLOW WATER-CUT LASER SENSING USING AN UNSUPERVISED MACHINE LEARNING MODEL

#17
20250290914
2025-09-18

DEVICE AND METHOD FOR MEASURING PETROLEUM IN LARGE DIAMETER, ELECTRONIC DEVICE AND MEASURING SYSTEM

#18
20250264450
2025-08-21

METHOD AND SYSTEM FOR EMULSION DETECTION IN GEOLOGIC FORMATIONS

#19
20250244154
2025-07-31

LIQUID RATE TEST FROM SAMPLING COLLECTION POINTS

#20
20250237589
2025-07-24

SYSTEMS AND METHODS FOR A SELF-VERIFYING CAPACITIVE SENSOR SYSTEM

#21
20250122800
2025-04-17

SENSOR FOR QUANTIFYING PRODUCTION FLUID PERCENTAGE CONTENT

#22
20250116649
2025-04-10

DEVICE FOR MONITORING WATER-MISCIBLE COOLING LUBRICANT

#23
20250102338
2025-03-27

FLUID CONDUCTIVITY SENSOR BASED ON MAGNETO-INDUCTIVE POWER TRANSFER DISSIPATION

#24
20250085238
2025-03-13

TANK ARRANGEMENT AND METHOD FOR ESTIMATING A SIGNAL PROPAGATION PROPERTY OF A SUBSTANCE COMPOSITION IN A PREDEFINED TANK PORTION

#25
20250076236
2025-03-06

METHOD FOR DETERMINING THE VOLUME FRACTION OF A PHASE OF A MULTIPHASE MEDIUM AND CORRESPONDING MEASURING DEVICE

#26
20250052705
2025-02-13

NMR CHARACTERIZATION OF MODIFIED DRILLING FLUIDS

#27
20250012694
2025-01-09

MODULAR OPTICAL PROFILER FOR MEASURING LEVEL, OIL-WATER INTERFACE AND WATER CONTENT IN THE EMULSION LAYER

#28
20250003947
2025-01-02

Borehole electrokinetic energy generation and on-line water determination

#29
20240410873
2024-12-12

WELL EVALUATION USING WATER CHEMISTRY ANALYSIS

#30
20240404331
2024-12-05

A FUEL MONITORING SYSTEM

#31
20240280528
2024-08-22

Sensor Device and Method for Determination of Properties of a Liquid

#32
20240201150
2024-06-20

SYSTEM AND METHOD FOR DETERMINING GAS-WATER RATIO IN A RESERVOIR FLUID

#33
20240201075
2024-06-20

METHOD AND SYSTEM FOR WATER CUT SENSING IN AN OIL-WATER FLOW

#34
20240192189
2024-06-13

FLOW REGIME CLASSIFICATION, WATER LIQUID RATIO ESTIMATION, AND SALINITY ESTIMATION SYSTEMS AND METHODS

#35
20240159726
2024-05-16

ISOTOPIC MONITORING OF RESERVOIR WATER

#36
20240082751
2024-03-14

Systems and methods for removing moisture from a power transformer

#37
20240069004
2024-02-29

SYSTEM FOR ONLINE MONITORING OF THE GRAVITATIONAL SEPARATION OF OIL EMULSIONS IN A PRESSURIZED AND HEATED SYSTEM

#38
20240035376
2024-02-01

Sensor for quantifying production fluid percentage content

#39
20240027243
2024-01-25

Multiphase fluid flow characterization

#40
20230417589
2023-12-28

Multiphase flowmeters and related methods

#41
20230408483
2023-12-21

Systems and methods for analyzing multiphase production fluid

#42
20230400448
2023-12-14

METHODS AND DEVICES FOR MONITORING MACHINE FLUIDS

#43
20230366814
2023-11-16

SYSTEMS AND METHODS FOR DETERMINING WATER CONTENT IN A SAMPLE

#44
20230357651
2023-11-09

Process control systems and methods for simultaneous crude oil dehydration, desalting, sweetening, and stabilization

#45
20230288395
2023-09-14

OXIDATIVE STABILITY TEST METHODS FOR CHEMICALLY RECYCLED PLASTIC FEEDSTOCKS

#46
20230280196
2023-09-07

Inlet dividers having a plurality of analyzing and production apertures for analyzing multiphase production fluid as well as systems incorporating the same

#47
20230264117
2023-08-24

Systems and methods for removing moisture from a power transformer

#48
20230160873
2023-05-25

METHOD FOR DETERMINING THE QUALITY OF CRUDE OIL EXITING A GAS-OIL SEPARATION PLANT OR CRUDE OIL PROCESSING PLANT

#49
20230152296
2023-05-18

METHOD FOR INCREASING THE QUALITY OF CRUDE OIL EXITING A GAS-OIL SEPARATION PLANT

#50
20230152295
2023-05-18

METHOD FOR DETERMINING THE COMPOSITION OF WATER IN LOW BSW OILS

#51
20230142240
2023-05-11

FLOW METER FOR MEASURING FLOW VELOCITY IN OIL CONTINUOUS FLOWS

#52
20230134353
2023-05-04

OIL LUBRICANT QUALITY SENSOR FOR A LUBRICANT SUPPORTED ELECTRIC MOTOR AND AN OIL COOLED INVERTER

#53
20230090864
2023-03-23

Water analysis unit of a system for separating and analyzing a multiphase immiscible fluid mixture and corresponding method

#54
20230089626
2023-03-23

Method and system for learning water content in fuel

#55
20230088463
2023-03-23

Method and system for water in fuel prognostic monitor

#56
20230044784
2023-02-09

VEHICLE FUEL MONITORING SYSTEM AND METHODS

#57
20230029571
2023-02-02

Wet gas capacitance probe

#58
20230026099
2023-01-26

System and method of determining age of a transformer

#59
20230014753
2023-01-19

Passive production logging instrument using heat and distributed acoustic sensing

#60
20230003122
2023-01-05

Crude oil parameter detection device

#61
20220412784
2022-12-29

Measuring component concentrations of nonhomogeneous immiscible mixtures in multiphase flows using near-infrared (NIR) filter photometry

#62
20220397492
2022-12-15

CRUDE CONTAINER WITH INTEGRATED WATER CUT METER

#63
20220396374
2022-12-15

Fueling system for an aircraft, a method for operating the fueling system and use of such fueling system

#64
20220380688
2022-12-01

Process control systems and methods for simultaneous crude oil dehydration, desalting, sweetening, and stabilization

#65
20220317081
2022-10-06

Fluid property sensing array utilizing a neural network

#66
20220307395
2022-09-29

Systems and methods for lubricant dilution detection

#67
20220307394
2022-09-29

Lubricant dilution detection system

#68
20220299353
2022-09-22

LEVEL MEASUREMENT APPARATUS

#69
20220234010
2022-07-28

AUTOMATED RECYCLED CLOSED-LOOP WATER BASED DRILLING FLUID CONDITION MONITORING SYSTEM

#70
20220205413
2022-06-30

PRECISION DEPTH SENSOR

#71
20220187220
2022-06-16

Measuring a water cut of hydrocarbon fluid in a production pipe

#72
20220186617
2022-06-16

Systems and methods to determine a characteristic of a drilling fluid

#73
20220146299
2022-05-12

Fluid level and composition sensor

#74
20220107303
2022-04-07

On-vehicle water in fuel sensing system and related signal processing

#75
20220107284
2022-04-07

Mechanism for the real-time prediction of incipient failure in working fluids

#76
20220094118
2022-03-24

Water-in-fuel sensor and method of assembly thereof

#77
20220065142
2022-03-03

Engine lubrication oil consumption and condition monitoring

#78
20220057351
2022-02-24

Pump device and method for determining the concentration of a substance inside a liquid

#79
20220057312
2022-02-24

MASS LIQUID FLUIDITY METER AND PROCESS FOR DETERMINING WATER CUT IN HYDROCARBON AND WATER EMULSIONS

#80
20220034863
2022-02-03

Online measurement of dispersed oil phase in produced water

#81
20220026376
2022-01-27

System for detection of drift of the water volume fraction in a flow

#82
20220011289
2022-01-13

Monitoring process for a grease lubricated rotating system and corresponding system

#83
20210381866
2021-12-09

Method and device for non-invasively determining properties of a multiphase flow

#84
20210349071
2021-11-11

Systems and methods for dynamic real-time water-cut monitoring

#85
20210333186
2021-10-28

Vortex fluid sensing to determine fluid properties

#86
20210302405
2021-09-30

Automated real-time water cut testing and multiphase flowmeter calibration advisory

#87
20210255079
2021-08-19

Apparatus and method for measuring water content profiles, interfacial levels, thicknesses and tensions of multiphase dispersions

#88
20210238990
2021-08-05

System having non-intrusive fluid sensor

#89
20210231634
2021-07-29

Methods and devices for monitoring machine fluids

#90
20210208074
2021-07-08

LIQUID TESTING APPARATUS AND METHOD

#91
20210205733
2021-07-08

Systems and methods for removing moisture from a power transformer

#92
20210132029
2021-05-06

Ion selective fiber sensors for determining the water cut in wellbore-related fluids

#93
20210116345
2021-04-22

ONBOARD APPARATUS, SYSTEM, AND METHOD FOR AUTOMATICALLY DYNAMICALLY EVALUATING CHARACTERISTICS OF A NON-HOMOGENOUS LIQUID DURING LOADING AND UNLOADING OF A TRANSPORT CONTAINER

#94
20210116276
2021-04-22

Measuring component concentrations of nonhomogeneous immiscible mixtures in multiphase flows using near-infrared (NIR) filter photometry

#95
20210102891
2021-04-08

METHOD AND APPARATUS FOR DETERMINING WATER CONTENT IN A HYDROCARBON FLUID

#96
20210088476
2021-03-25

Autonomous inflow control device for live flow monitoring

#97
20210080446
2021-03-18

Method and apparatus to measure water content of petroleum fluids

#98
20210080418
2021-03-18

Oil recovery sensor

#99
20210065970
2021-03-04

System for sensor utilization in a transformer cooling circuit

#100
20210063496
2021-03-04

System and method of determining age of a transformer

#101
20210054739
2021-02-25

Low power water cut sensing

#102
20210033739
2021-02-04

Translatable eat sensing modules and associated measurement methods

#103
20210025840
2021-01-28

Determining borehole mud composition

#104
20200400559
2020-12-24

Fuel quality sensor

#105
20200393398
2020-12-17

Apparatus for monitoring a fluid

#106
20200386735
2020-12-10

Water retort

#107
20200378903
2020-12-03

Detection system and detection method for water content and conductivity

#108
20200325772
2020-10-15

Method to use a buoyant body to measure two-phase flow in horizontal wells

#109
20200324224
2020-10-15

Well clean-up monitoring technique

#110
20200319011
2020-10-08

Capacitive fringe field oil level sensor with integrated humidity and temperature sensing

#111
20200309580
2020-10-01

Electromagnetic multiphase flowmeter

#112
20200300795
2020-09-24

Electrical tomography for vertical profiling

#113
20200271580
2020-08-27

Apparatus and method for measuring free water in hydrocarbon fuels and method of calibrating the apparatus

#114
20200264114
2020-08-20

Dual-beam multiphase fluid analysis systems and methods

#115
20200263652
2020-08-20

Fuel composition and aging estimation

#116
20200225181
2020-07-16

Detecting composition of a sample based on thermal properties

#117
20200217806
2020-07-09

Fluid sensor comprising a composite cavity member

#118
20200209035
2020-07-02

Separation type multiphase flowmeter with separate flow metering devices with different cross-sectional areas

#119
20200166478
2020-05-28

Method for measuring multiple parameters of drilling fluid

#120
20200072776
2020-03-05

Characterisation of emulsion stability

#121
20200063693
2020-02-27

Precision depth sensor

#122
20200041397
2020-02-06

Phase wetting detection and water layer thickness characterization in multiphase oil-water and oil-water-gas flow

#123
20200033174
2020-01-30

Multiphase flowmeters and related methods

#124
20200025743
2020-01-23

Methods and apparatus for water detection in multiphase flows

#125
20190390655
2019-12-26

System and Method for Determining Water Contamination in Oil of a Wind Turbine Gearbox

#126
20190388814
2019-12-26

Valve-sensor assembly

#127
20190383140
2019-12-19

METHOD AND DEVICE FOR PREDICTING CHANGE IN WATER CUT RISING RATE IN WATER-DRIVE OIL RESERVOIR

#128
20190353633
2019-11-21

Fluid sensing system using planar resonators

#129
20190324011
2019-10-24

Method for processing a fluid

#130
20190323936
2019-10-24

Determining multi-phasic fluid properties and hydrocarbon production information as a function thereof

#131
20190277756
2019-09-12

Sample testing apparatus and method

#132
20190271576
2019-09-05

Multiphase flow rate measurement with elliptical ultrasonic transceiver array

#133
20190257772
2019-08-22

Measuring a water cut of hydrocarbon fluid in a production pipe

#134
20190234209
2019-08-01

MEASURING FLUID DENSITY IN A FLUID FLOW

#135
20190170643
2019-06-06

Apparatus and method for measuring free water in hydrocarbon fuels and method of calibrating the apparatus

#136
20190145910
2019-05-16

Measuring a water cut of hydrocarbon fluid in a production pipe

#137
20190120048
2019-04-25

USING FLUIDIC DEVICES TO ESTIMATE WATER CUT IN PRODUCTION FLUIDS

#138
20190101937
2019-04-04

Solenoid operated unit for detecting and removing undesired fluid with diagnostic metering

#139
20190062142
2019-02-28

Fuel delivery system having corrosive detection assembly

#140
20190049425
2019-02-14

Oil well gauging system and method of using the same

#141
20190017935
2019-01-17

Optical sensor

#142
20190003996
2019-01-03

Combined water cut and salinity meter

#143
20180356356
2018-12-13

Combined water cut and salinity meter

#144
20180348191
2018-12-06

SYSTEM AND METHOD FOR IMPROVING FUEL QUALITY

#145
20180313808
2018-11-01

Methods for characterising and minimising the corrosive effects of an oil

#146
20180306693
2018-10-25

Emulsion composition sensor

#147
20180299423
2018-10-18

Ion selective fiber sensors for determining the water cut in wellbore-related fluids

#148
20180298748
2018-10-18

Method and system for determining flow rate of water in a gas production system by incorporating characteristics of water

#149
20180275111
2018-09-27

In-situ high pressure PH measurement and biofilm sampling device

#150
20180274730
2018-09-27

Multiphase flow meters and related methods having asymmetrical flow therethrough

#151
20180267010
2018-09-20

WATER CUT AND PRESSURE SENSING DEVICE

#152
20180266996
2018-09-20

Device and method for examining materials by means of acoustic spectroscopy

#153
20180259499
2018-09-13

Smart water flooding processes for increasing hydrocarbon recovery

#154
20180245463
2018-08-30

METHOD FOR DETERMINING A WATER CUT OF AN OIL-WATER MIXTURE PRODUCED FROM AN OIL WELL

#155
20180238851
2018-08-23

Method and system of condition monitoring

#156
20180224318
2018-08-09

Apparatus for determining and/or monitoring at least one process variable

#157
20180172495
2018-06-21

Multiphase vortex flow meter

#158
20180163537
2018-06-14

Method and system for continuous monitoring of the water fraction in an oil well stream

#159
20180156086
2018-06-07

Systems for in situ monitoring of working fluids and working fluid systems

#160
20180143061
2018-05-24

Fluid level and composition sensor

#161
20180113082
2018-04-26

Fluid measuring system

#162
20180100845
2018-04-12

METHOD FOR NON-INTRUSIVE MEASUREMENT OF LOW WATER CONTENT IN OIL

#163
20180080916
2018-03-22

Water in fuel (WIF) sensor having electrostatic discharge capability

#164
20180080893
2018-03-22

Method for non-linear high salinity water cut measurements

#165
20180045662
2018-02-15

System for measuring characteristics of a fluid flow

#166
20180031524
2018-02-01

Integrated sediment and water analysis device and method

#167
20180031505
2018-02-01

Method for measuring the presence of water in gas oil filters and water sensor for carrying out said method

#168
20180011033
2018-01-11

Water-cut sensor system

#169
20180003654
2018-01-04

Determining the oleophilic to aqueous phase fluid ratio for drilling fluids

#170
20170363560
2017-12-21

Method for non-linear high salinity water cut measurements

#171
20170350843
2017-12-07

Probe for indentifying and measuring volume fraction constituents of a fluid

#172
20170350841
2017-12-07

Detecting composition of a sample based on thermal properties

#173
20170350830
2017-12-07

Systems and methods for determining water-cut of a fluid mixture

#174
20170315098
2017-11-02

Ultrasonic contaminant detection system

#175
20170292913
2017-10-12

System and method for measuring oil content in water using laser-induced fluorescent imaging

#176
20170292871
2017-10-12

System and method for measuring fluids

#177
20170241905
2017-08-24

Advanced Aircraft Fuel Tank And Water Detection Device

#178
20170176340
2017-06-22

Sensor for detecting water in oil

#179
20170159716
2017-06-08

Capacitance measurement in a bearing

#180
20170138876
2017-05-18

Resonant sensing system and method for monitoring properties of an industrial fluid

#181
20170138189
2017-05-18

System for measuring multi-phase fluid flow characteristics

#182
20170081997
2017-03-23

Sensing system and method

#183
20170045492
2017-02-16

SENSOR SYSTEMS FOR MEASURING AN INTERFACE LEVEL IN A MULTI-PHASE FLUID COMPOSITION

#184
20170045445
2017-02-16

Optical fiber sensor used for oil conditioning monitoring

#185
20170030885
2017-02-02

Oil content measurement device

#186
20170010251
2017-01-12

Fluid Phase Analyzer with Embedded Measurement Electronics

#187
20160349200
2016-12-01

Multi-conductor water in fuel sensor for fill rate detection

#188
20160334343
2016-11-17

Microwave measurement of water fraction

#189
20160313293
2016-10-27

Fluid flow separation chamber for separating hydrocarbons from a fluid, method, and system of using the same

#190
20160310880
2016-10-27

Filters, filter assemblies, filter systems and methods for identifying installation of qualified filter elements

#191
20160290985
2016-10-06

Method and apparatus for continuous monitoring of quality and moisture parameters of liquids

#192
20160281788
2016-09-29

Capacitance measurement in a bearing housing

#193
20160281787
2016-09-29

Capacitance measurement in a bearing housing

#194
20160258923
2016-09-08

Sensor unit for determining properties of a lubricant and machine element and machine assembly

#195
20160231304
2016-08-11

Method of measuring water contamination in turbine and other industrial oils

#196
20160215618
2016-07-28

Oil Well Production Analyzing System

#197
20160209542
2016-07-21

Inline density and fluorescence spectrometry meter

#198
20160209391
2016-07-21

High temperature tracers for downhole detection of produced water

#199
20160202231
2016-07-14

Method for non-linear high salinity water cut measurements

#200
20160177695
2016-06-23

Method and system for adjusting the position of an oil-water interface layer

#201
20160161425
2016-06-09

APPARATUS AND METHOD FOR DETERMINING A VALUE OF A PROPERTY OF A MATERIAL USING MICROWAVE

#202
20160131575
2016-05-12

Method and system for monitoring the quality of fluids

#203
20160123899
2016-05-05

Cavity resonator system

#204
20160097758
2016-04-07

Fuel property sensor

#205
20160074786
2016-03-17

Filters, filter assemblies, filter systems and methods for identifying installation of qualified filter elements

#206
20160055738
2016-02-25

Remote water in fuel indicator unit

#207
20160047792
2016-02-18

System and method for measuring separation rate of water from water-in-crude oil emulsions

#208
20160033469
2016-02-04

Sensor, phase separation detecting system and phase separation detecting method

#209
20160033467
2016-02-04

Fuel water separator bowl with an internal inspection light

#210
20150369788
2015-12-24

Sensor Device, Filter Assembly, and Method for Manufacturing Same

#211
20150346117
2015-12-03

Conductivity measurements

#212
20150301013
2015-10-22

REAL TIME FUEL DISCRIMINATOR

#213
20150300936
2015-10-22

Fluid sensor

#214
20150260662
2015-09-17

Fluid sensor comprising a composite cavity member

#215
20150233887
2015-08-20

Sensor systems for measuring an interface level in a multi-phase fluid composition

#216
20150233885
2015-08-20

SORPTION-BASED SENSING SYSTEM

#217
20150198039
2015-07-16

Oil well production analyzing system

#218
20150168368
2015-06-18

Method for non-intrusive measurement of low water content in oil

#219
20150093833
2015-04-02

Method of operating a small-scale water separometer to pre-treat a filter prior to testing a fuel sample

#220
20150090012
2015-04-02

System for pre-treating a filter used in a small-scale water separometer

#221
20150052983
2015-02-26

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

#222
20150021482
2015-01-22

Device and method for recording contaminations in a hydraulic system

#223
20140220692
2014-08-07

Early warning system for hydrate or clathrate materials

#224
20140176936
2014-06-26

Sensor assembly and method for determining the hydrogen and moisture content of transformer oil

#225
20140166596
2014-06-19

Method and system for water drainage in fuel system

#226
20140144215
2014-05-29

Expandable enclosure for oil-in-water analyzers

#227
20140109656
2014-04-24

Apparatus for Measurement of Liquid Oil Products

#228
20140102181
2014-04-17

Method and apparatus for determining the water concentration in a fluid mixture

#229
20140077825
2014-03-20

Method for the measurement of water and water-soluble components in non-aqueous liquids

#230
20140076035
2014-03-20

Multiphase metering system

#231
20140013830
2014-01-16

Electrode structure and apparatus for use in measuring oil-water constituents

#232
20140012507
2014-01-09

In-well full-bore multiphase flowmeter for horizontal wellbores

#233
20130317724
2013-11-28

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