ClassID:

169095

G01N33/2858 - 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 metal particles

Recent Application in this class:
#1
20260153479
2026-06-04

MAGNETIC SENSING DEVICE

#2
20260140034
2026-05-21

PRINTED COIL SENSORS FOR MONITORING FLUID CONDITION

#3
20260110595
2026-04-23

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

#4
20260071987
2026-03-12

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

#5
20260002585
2026-01-01

SYSTEM AND METHOD FOR DETECTING THE PRESENCE OF AS WELL AS FOR ANALYZING PARTICLES IN A FLOW OF LUBRICANT

#6
20250377279
2025-12-11

FLUID SENSOR ASSEMBLY

#7
20250327732
2025-10-23

METHODS FOR EXTRACTING WEAR PARTICLE FEATURE SIGNALS BASED ON SEGMENTATION ENTROPY

#8
20250320098
2025-10-16

MAST HYDRAULIC SENSING SYSTEM AND METHOD

#9
20250306003
2025-10-02

DETERMINING A VOLUME OF METALLIC SWARF IN A WELLBORE FLUID

#10
20250271290
2025-08-28

LOW LEVEL WATER SENSOR AND METHOD OF USE

#11
20250231097
2025-07-17

SYSTEM FOR DETECTING DEBRIS IN A FLUID

#12
20250130153
2025-04-24

Induction type oil debris signal monitoring and identification system and method

#13
20250027919
2025-01-23

METHOD AND SYSTEM FOR FAILURE PREDICTION USING LUBRICATING FLUID ANALYSIS

#14
20240393283
2024-11-28

CAPACITIVE CHIP DETECTOR

#15
20240353390
2024-10-24

Chip detection system for an engine fluid system

#16
20240353303
2024-10-24

ABNORMALITY DETERMINATION DEVICE, CONDUCTIVE PARTICLE DETECTING DEVICE, AND ABNORMALITY DETERMINATION METHOD

#17
20240344962
2024-10-17

SYSTEM AND METHOD FOR INSPECTING A FLUID

#18
20240310267
2024-09-19

SENSOR DEVICE AND METHOD FOR CHARACTERIZING METAL CHIPS

#19
20240302345
2024-09-12

CHIP AGITATION DEVICE FOR A FLUID SYSTEM

#20
20240248073
2024-07-25

METHOD AND EQUIPMENT FOR DETERMINING AN ESTIMATED LIFE AND REMAINING USEFUL LIFE OF A MECHANICAL DEVICE

#21
20240159730
2024-05-16

Signal processing system and method for inductive oil abrasive particle sensor

#22
20240117872
2024-04-11

METHOD FOR MONITORING A GEARBOX IN AN AIRCRAFT, MONITORING SYSTEM FOR A GEARBOX IN AN AIRCRAFT, AND AIRCRAFT HAVING THE MONITORING SYSTEM

#23
20240003836
2024-01-04

SYSTEM AND METHOD FOR PREDICTING THE PRESENCE OF RARE EARTH ELEMENTS

#24
20230400448
2023-12-14

METHODS AND DEVICES FOR MONITORING MACHINE FLUIDS

#25
20230358719
2023-11-09

TECHNIQUES FOR TOXIC METAL DETECTION AND SPECIATION IN AQUEOUS MATRICES

#26
20230296562
2023-09-21

Metal debris sensor for oil with temperature compensation

#27
20230258531
2023-08-17

METHOD AND SYSTEM FOR GEARBOX FAILURE DETECTION USING RADIOACTIVE COMPONENTS

#28
20230243768
2023-08-03

ABNORMALITY DETECTING DEVICE AND MECHANICAL DEVICE

#29
20230228731
2023-07-20

Electromagnetic chip detector

#30
20230152298
2023-05-18

Analysis device for detecting solid particles in a lubricant

#31
20230152297
2023-05-18

Multi-zone magnetic chip detector

#32
20230147354
2023-05-11

FILTER WITH METAL DEBRIS SENSOR ASSEMBLY

#33
20230134353
2023-05-04

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

#34
20230044685
2023-02-09

Systems and methods for reliably detecting wear metal particles in lubrication systems to avoid progressive damage

#35
20220412931
2022-12-29

Method and system for failure prediction using lubricating fluid analysis

#36
20220390429
2022-12-08

Magnetic head for a magnetic detector for detecting metal particles, and magnetic detector provided with such a head

#37
20220308037
2022-09-29

Multi-passage oil debris monitor to increase detection capability in high oil flow systems

#38
20220298002
2022-09-22

Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems

#39
20220291188
2022-09-15

Conductive particle detecting device and mechanical device

#40
20220291159
2022-09-15

Wiring structure, conductive particle detecting device, and speed reducer

#41
20220252530
2022-08-11

System and method for predicting the presence of rare earth elements

#42
20220136885
2022-05-05

Low level water sensor and method of use

#43
20220099651
2022-03-31

Magnetic chip detector

#44
20220065142
2022-03-03

Engine lubrication oil consumption and condition monitoring

#45
20210278389
2021-09-09

Techniques for toxic metal detection and speciation in aqueous matrices

#46
20210263009
2021-08-26

Magnetic chip detector and method of use

#47
20210262904
2021-08-26

Syntactic foams as mechanically-triggered capture vehicles

#48
20210262897
2021-08-26

Magnetic chip detector and method of use

#49
20210262894
2021-08-26

Method and controller for deciding whether a bearing is faulty or not

#50
20210260585
2021-08-26

System and method for oil condition monitoring

#51
20210254519
2021-08-19

Systems and methods for reliably detecting wear metal particles in lubrication systems to avoid progressive damage

#52
20210231634
2021-07-29

Methods and devices for monitoring machine fluids

#53
20210223158
2021-07-22

Analyzing fluids

#54
20210207768
2021-07-08

Method and system of lubricating consumers to be monitored via their lubricant

#55
20210181177
2021-06-17

Magnetic sensor for capturing metal wear particles in suspension in a lubrication fluid

#56
20210132126
2021-05-06

Sensor

#57
20210132030
2021-05-06

Coaxial capacitive sensor and a method for on-line monitoring and diagnosing engine lubricating oil abrasive particles

#58
20210088487
2021-03-25

Method and system for failure prediction using lubricating fluid analysis

#59
20210063327
2021-03-04

Method and system for determining an exposure temperature of an engine component using lubrication fluid analysis

#60
20200408733
2020-12-31

Multi-passage oil debris monitor to increase detection capability in high oil flow systems

#61
20200393436
2020-12-17

System and method for diagnosing a condition of an engine

#62
20200340934
2020-10-29

INSTALLATION AND PROCESS OF FOLLOW-UP OF THE EVOLUTION OF THE QUALITY OF A LUBRICANT, METHOD OF FOLLOW-UP AND USE OF SUCH A METHOD FOR DETERMINING THE IRON CONTENT OF A LUBRICANT

#63
20200332198
2020-10-22

Monitoring of residual metals in paraffinic froth treatment operations and process control

#64
20200325806
2020-10-15

Methods and systems for detection of particles in lubricant

#65
20200264158
2020-08-20

Active oil debris monitor phase angle calculation and monitoring system

#66
20200264157
2020-08-20

Active oil debris monitor particle detection and monitoring system

#67
20200264135
2020-08-20

Active oil debris monitor particle detection and monitoring system

#68
20200232837
2020-07-23

Sensor unit, fluid power unit with sensor unit and method for measuring parameters of a fluid

#69
20200225181
2020-07-16

Detecting composition of a sample based on thermal properties

#70
20200217603
2020-07-09

Cleaning of a 3D printed article

#71
20200209205
2020-07-02

Method and system for failure prediction using lubricating fluid analysis

#72
20200049686
2020-02-13

Distinguishing fluids based upon determination and analysis of digital image color space characteristics

#73
20200032147
2020-01-30

Viscosity reduction of crude oil through structure determination of asphaltene molecule

#74
20200003745
2020-01-02

Techniques for toxic metal detection and speciation in aqueous matrices

#75
20190257777
2019-08-22

Systems and methods for detecting chips in fluid of aircraft engine

#76
20190227007
2019-07-25

Process for calibrating a sensor, automated method for online monitoring of the changes to a liquid body and associated sensor

#77
20190226947
2019-07-25

Fluid analysis and monitoring using optical spectroscopy

#78
20190204290
2019-07-04

Fluorescence based global fuel analysis method

#79
20190187036
2019-06-20

Particle counter and classification system

#80
20190154608
2019-05-23

Sensor for detecting a change of resistance between a pair of electrodes

#81
20190128788
2019-05-02

FLUID SENSOR ASSEMBLY

#82
20190101473
2019-04-04

Fluid analysis and monitoring using optical spectrometry

#83
20190072536
2019-03-07

Method and system for evaluation of engine condition

#84
20190072483
2019-03-07

Systems, apparatuses, and methods for fluid analysis and monitoring

#85
20190064076
2019-02-28

Method and system for analysing a blend of two or more hydrocarbon feed streams

#86
20180364141
2018-12-20

Systems and methods for detecting chips in fluid of aircraft engine

#87
20180340899
2018-11-29

Vibration induced noise suppression device

#88
20180299375
2018-10-18

Fluid analysis and monitoring using optical spectroscopy

#89
20180299355
2018-10-18

Fluid analysis and monitoring using optical spectroscopy

#90
20180275083
2018-09-27

Sensor for detecting magnetic powders in a lubricant

#91
20180257925
2018-09-13

Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems

#92
20180156086
2018-06-07

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

#93
20180155634
2018-06-07

Viscosity reduction of crude oil through structure determination of asphaltene molecule

#94
20180136179
2018-05-17

Method and system for failure prediction using lubricating fluid analysis

#95
20180107203
2018-04-19

Oil debris monitoring (ODM) with adaptive learning

#96
20180059088
2018-03-01

Systems and methods for detection of mercury in hydrocarbon-containing fluids using optical analysis of slug flow

#97
20180031504
2018-02-01

Systems and methods for detecting chips in fluid of aircraft engine

#98
20180030850
2018-02-01

Oil debris monitor with sequential coil system and associated algorithms for particle confirmation

#99
20180024106
2018-01-25

FACILITY AND METHOD FOR MONITORING THE VARIATION IN THE QUALITY OF A LUBRICANT

#100
20180017541
2018-01-18

SYSTEMS AND METHODS TO DETECT AND MEASURE MATERIALS IN OIL

#101
20170370851
2017-12-28

Method and kit for dosing iron ions in lubricating compositions

#102
20170363529
2017-12-21

Modular packaging system for a lubricant condition monitor

#103
20170363377
2017-12-21

Cleaning of a 3D printed article

#104
20170350841
2017-12-07

Detecting composition of a sample based on thermal properties

#105
20170309012
2017-10-26

Fluid monitoring system

#106
20170307583
2017-10-26

Method and system for evaluation of engine condition

#107
20170254794
2017-09-07

Contaminant sensor for detecting magnetizable contaminants in lubricant flow

#108
20170138217
2017-05-18

Monitoring system for non-ferrous metal particles

#109
20170067870
2017-03-09

Method and kit for monitoring catalyst fines in heavy fuel oil

#110
20170023485
2017-01-26

Method and system for analysing a blend of two or more hydrocarbon feed streams

#111
20170016824
2017-01-19

High pressure housing and optical viewing system

#112
20160370275
2016-12-22

Flow through debris sensor

#113
20160349169
2016-12-01

System for eliminating electrically conductive particles

#114
20160333278
2016-11-17

Removing mercury from crude oil

#115
20160313237
2016-10-27

Systems, apparatuses, and methods for fluid analysis and monitoring

#116
20160266006
2016-09-15

Monitoring system for predicting gearbox lifespan

#117
20160195509
2016-07-07

MEMS IMPLEMENTATION FOR DETECTION OF WEAR METALS

#118
20150346081
2015-12-03

Method and apparatus for stabilizing the thickness of an optical channel for extended pressure environments

#119
20150301013
2015-10-22

REAL TIME FUEL DISCRIMINATOR

#120
20150276641
2015-10-01

Measuring apparatus and method for detecting ferromagnetic particles

#121
20150226311
2015-08-13

Wearing monitoring device for motion guide device

#122
20150218462
2015-08-06

Removing mercury from crude oil

#123
20150177116
2015-06-25

Magnetic chip detector/collector

#124
20150160179
2015-06-11

Method for determining the concentration of iron ions in hydrocarbon compositions

#125
20150129361
2015-05-14

Anti-clog and non-metallic debris detector for lubrication system inlet

#126
20140305740
2014-10-16

Debris detector for non-ferrous bearings

#127
20140231726
2014-08-21

Method for suppressing copper sulfide generation in oil-filled electrical equipment

#128
20140121994
2014-05-01

Method and system for failure prediction using lubricating fluid analysis

#129
20140083172
2014-03-27

Method and apparatus for determining an ageing state of a lubricant

#130
20130332045
2013-12-12

System and method for detecting spall initiation and defining end of life in engine components

#131
20130197738
2013-08-01

SYSTEM AND METHOD FOR DETERMINING A LUBRICANT DISCARD INTERVAL

#132
20130000376
2013-01-03

Oil debris monitor verification dry rig

#133
20120299584
2012-11-29

Measurement system of ferromagnetic particles

#134
20120001619
2012-01-05

Hard particle concentration detecting method

#135
20100126251
2010-05-27

Hall Effect-Based Real-Time Lubrication Monitoring System Modes of Operation and Use Thereof

#136
20100027006
2010-02-04

Device and method for monitoring the particle contamination in flowing hydraulic fluids

#137
20090320567
2009-12-31

Broken piece detecting sensor

#138
20090314064
2009-12-24

Pre-signaling magnetic plug

#139
20090227035
2009-09-10

METHOD AND TEST KIT FOR THE DETERMINATION OF IRON CONTENT OF IN-USE LUBRICANTS

#140
20090211379
2009-08-27

Method and apparatus for fluid sampling

#141
20090189599
2009-07-30

Device and method for measuring concentration of magnetic material

#142
20090100913
2009-04-23

Conductive material concentration measuring device and magnetic material concentration measuring device

#143
20090051350
2009-02-26

Device and process for detecting particles in a flowing liquid

#144
20090014245
2009-01-15

Systems and methods for monitoring gas turbine engines

#145
20080150518
2008-06-26

Device and process for detecting particles in a flowing liquid

#146
20070209427
2007-09-13

Metal particle sensor system

#147
20070137287
2007-06-21

Acoustic wave particulate sensor

#148
20060270050
2006-11-30

Method and test kit for the determination of iron content of in-use lubricants

#149
20050118063
2005-06-02

Method of diagnosing lubricated portion and system of diagnosing lubricated portion

#150
18961577
2025-04-15

Method and system for detecting oil abrasive particle size