ClassID:

169061

G01N33/1833 - CPC Classification

Classification description:

Investigating or analysing materials by specific methods not covered by groups -; Water organic contamination in water Oil in water

Recent Application in this class:
#1
20260110559
2026-04-23

FLUID ANALYZER ANTENNA MOUNTING

#2
20260092802
2026-04-02

TDR-BASED DETECTION OF CONTAMINATION

#3
20250369946
2025-12-04

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

#4
20250172534
2025-05-29

METHOD OF CHARACTERIZING WATER-OIL MIXTURES FROM ELECTRICAL CONDUCTIVITY MEASUREMENTS

#5
20250172497
2025-05-29

OPTICAL MEASURING DEVICE FOR DETERMINING A MEASURED VARIABLE IN WATER

#6
20240418696
2024-12-19

SOURCE DETERMINATION OF PRODUCED WATER FROM OILFIELDS WITH ARTIFICIAL INTELLIGENCE TECHNIQUES

#7
20240329026
2024-10-03

PROSPECTING HYDROCARBONS VIA MONOCYCLIC AROMATIC COMPOUNDS

#8
20240248007
2024-07-25

INTEGRATED AUTONOMOUS OIL-SLICK SAMPLER AND STORAGE PRESERVATION DEVICE

#9
20240201075
2024-06-20

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

#10
20240011964
2024-01-11

APPARATUS AND METHOD TO SEPARATE INDIVIDUAL HYDROCARBONS FROM A COMPOSITION OF MULTIPLE HYDROCARBONS IN ONE OR MORE MATRICES

#11
20230296581
2023-09-21

Demulsifier analysis framework

#12
20230273180
2023-08-31

SYSTEMS AND METHODS FOR AUTOMATED, REAL-TIME ANALYSIS AND OPTIMIZATION OF FORMATION-TESTER MEASUREMENTS

#13
20230273120
2023-08-31

Determination of total crude oil in water by absorbance spectrophotometry

#14
20230273117
2023-08-31

Determining concentration of oil in water by extraction

#15
20230160389
2023-05-25

SUBMERSIBLE PUMP DETECTION SYSTEM

#16
20230125771
2023-04-27

Water quality sampler

#17
20230109880
2023-04-13

Tracer analysis

#18
20230054687
2023-02-23

Remote Detection Apparatus

#19
20220397441
2022-12-15

Sensor device and method for determining properties of a liquid

#20
20220232788
2022-07-28

Algae biofuel production and systems, methods, and devices related thereto

#21
20220099649
2022-03-31

Polymeric-coated electrodes for sensing analytes in liquid and methods of making the same

#22
20220099597
2022-03-31

Method for measuring oil in water using multi-frequency microwave measurements

#23
20220099563
2022-03-31

Self cleaning optical probe

#24
20220042909
2022-02-10

Optical sensor, method and use of the sensor

#25
20210179446
2021-06-17

IoT-based system for measurement of contamination distribution of contaminated groundwater through real-time monitoring of contamination degree of contaminated groundwater well for control of contaminated groundwater purification device and prediction of purification period based on measurement result

#26
20210116566
2021-04-22

Method of detecting hydrocarbon bubbles using airborne light detection and ranging

#27
20210080418
2021-03-18

Oil recovery sensor

#28
20210055231
2021-02-25

Apparatus and method for detecting and sampling dissolved hydrocarbons

#29
20210040702
2021-02-11

Systems for offshore environmental maintenance

#30
20210025858
2021-01-28

Tracer analysis

#31
20200400626
2020-12-24

Method for analysing hydrocarbons

#32
20200393379
2020-12-17

Method and apparatus for determining a concentration of a substance in a liquid medium

#33
20200378944
2020-12-03

Method for determining oil concentration in water

#34
20200309580
2020-10-01

Electromagnetic multiphase flowmeter

#35
20200240878
2020-07-30

Systems and methods for automation of low-flow groundwater sampling

#36
20200232918
2020-07-23

Detection of hydrocarbon contamination in soil and water

#37
20200110022
2020-04-09

Polarimetric detection of foreign fluids on surfaces

#38
20200072751
2020-03-05

Optical measuring system and method comprising the same

#39
20200049634
2020-02-13

Impedance-based flowline water cut measurement system

#40
20200041477
2020-02-06

Oil dispersant effectiveness monitoring

#41
20200033315
2020-01-30

METHODS FOR DETERMINING RESIDUAL SURFACTANT CONCENTRATIONS IN OIL AND WATER PHASES

#42
20190271615
2019-09-05

Systems and methods for automation of low-flow groundwater sampling

#43
20190187121
2019-06-20

Determining hydrocarbon content in steam condensate

#44
20190187118
2019-06-20

Optical sensor

#45
20190137423
2019-05-09

Sensor for detecting immersion in F.O.G. or water

#46
20190128817
2019-05-02

HYDROCARBON DETECTION

#47
20190128668
2019-05-02

Systems and methods for mixed layer depths

#48
20190041320
2019-02-07

Method For Determining In-Situ Suspended Sediment Properties

#49
20180364161
2018-12-20

Graphene foam based optical sensor for oil exploration and spills detection

#50
20180328836
2018-11-15

Polarimetric detection of foreign fluids on surfaces

#51
20180320096
2018-11-08

Oil-in-water emulsions

#52
20180291717
2018-10-11

Characterization of crude oil-water interfacial film rigidity to enhance oil recovery

#53
20180238819
2018-08-23

Portable NMR device for detecting an oil concentration in water

#54
20180172586
2018-06-21

Measurement of hydrocarbon contamination in water

#55
20180143148
2018-05-24

Method for analysis of hydrocarbons in water

#56
20180128781
2018-05-10

Shear horizontal-surface acoustic wave system and method for measurement and speciaion speciation of hydrocarbons in groundwater

#57
20180113072
2018-04-26

Hydrocarbon sensing methods and apparatus

#58
20180029092
2018-02-01

Real-time configuration of instrumentation

#59
20170321412
2017-11-09

Oil leak detection circuit and blocking mechanism for use in a storm water drainage system

#60
20170267546
2017-09-21

Method of Monitoring Naphthenic Acids

#61
20170241870
2017-08-24

Open-Cell Foam Environmental Indicator, and Methods of Use

#62
20170227750
2017-08-10

SYSTEM AND METHOD FOR MEASURING OIL CONTENT IN WATER USING LASER-INDUCED FLUORESCENT IMAGING

#63
20170212044
2017-07-27

Hydrocarbon sensing methods and apparatus

#64
20170174530
2017-06-22

Oil-In-Water Monitoring

#65
20170146435
2017-05-25

Open-Cell Foam Environmental Indicator and Methods of Use

#66
20170122847
2017-05-04

EASILY INSTALLABLE AND REMOVABLE FLOW ANALYZER FOR HARSH ENVIRONMENTS

#67
20170115225
2017-04-27

Method and apparatus for measurement of a material in a liquid through absorption of light

#68
20170090017
2017-03-30

Satellite method and system for detecting a floating layer on a sea surface to be monitored

#69
20160349186
2016-12-01

Measurement of scale inhibitor in water systems

#70
20160334353
2016-11-17

SENSOR FOR IN SITU SELECTIVE DETECTION OF COMPONENTS IN A FLUID

#71
20160334327
2016-11-17

Photonic sensor for in situ selective detection of components in a fluid

#72
20160313293
2016-10-27

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

#73
20160272506
2016-09-22

METHOD OF AND A SYSTEM FOR DETERMINING A QUALITY PARAMETER IN AN AQUEOUS FLUID AND A METHOD OF CONTROLLING A QUALITY PARAMETER

#74
20160252457
2016-09-01

Device for remote oil detection

#75
20160216196
2016-07-28

Scale monitoring and inhibitor quantification technique in multiphase meters

#76
20160177695
2016-06-23

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

#77
20160041376
2016-02-11

SYSTEM AND METHOD FOR MEASURING OIL CONTENT IN WATER USING LASER-INDUCED FLUORESCENT IMAGING

#78
20160025698
2016-01-28

Method for determining ecological risks of polycyclic aromatic hydrocarbon in water body

#79
20160018559
2016-01-21

Method and system for performing surveying and sampling in a body of water

#80
20160018558
2016-01-21

Method and system for identifying and sampling hydrocarbons

#81
20160018339
2016-01-21

AUTONOMOUS REMOTE SENSOR FOR DETERMINING A PROPERTY OF A FLUID IN A BODY OF WATER

#82
20150233885
2015-08-20

SORPTION-BASED SENSING SYSTEM

#83
20150127315
2015-05-07

Apparatus and methods for qualifying compositions

#84
20150021490
2015-01-22

Method to determine trace amounts of crude oil by spectroscopic absorption

#85
20140366653
2014-12-18

Multiphase sample container and method

#86
20140349406
2014-11-27

Solvent extraction using environmentally-friendly siloxane solvents

#87
20140327563
2014-11-06

Method of detecting oil spill at the sea by means of an oil spill radar, and such an oil spill radar

#88
20140274804
2014-09-18

ORGANIC MOLECULE SENSOR FOR DETECTING, DIFFERENTIATING, AND MEASURING ORGANIC COMPOUNDS

#89
20140144215
2014-05-29

Expandable enclosure for oil-in-water analyzers

#90
20140036255
2014-02-06

Oil in water analyzer

#91
20130183767
2013-07-18

Diffusion/chemical reaction/spectrometric device for the analysis of petroleum hydrocarbons in environmental and geological formation samples

#92
20130175000
2013-07-11

Visual quality indicator for aqueous streams

#93
20130147951
2013-06-13

Infrared camera detection systems and methods

#94
20130078730
2013-03-28

METHOD FOR MONITORING AND CONTROL OF A WASTEWATER PROCESS STREAM

#95
20120095683
2012-04-19

Method and apparatus for oil spill detection

#96
20120087731
2012-04-12

OIL RETENTION BOOMS

#97
20120062871
2012-03-15

METHOD AND SYSTEM FOR THE MEASUREMENT/DETECTION OF CHEMICAL SPILLAGE

#98
20110194105
2011-08-11

Oil in water analyzer

#99
20110162441
2011-07-07

Apparatus and method for determining analyte content in a fluid

#100
20110151576
2011-06-23

Method to assess multiphase fluid compositions

#101
20100274491
2010-10-28

Method and apparatus for monitoring offshore contamination

#102
20090241637
2009-10-01

Device for recording measurement data

#103
20090173145
2009-07-09

Apparatus and method for determining analyte content in a fluid

#104
20090039255
2009-02-12

Method and apparatus for oil spill detection

#105
20090032733
2009-02-05

Apparatus for measuring fluorescent material in a liquid

#106
20080303534
2008-12-11

Method and apparatus for measuring the water conductivity and water volume fraction of a multiphase mixture containing water

#107
20080209987
2008-09-04

Measurement instrument

#108
20070210262
2007-09-13

Non-contact oil spill detection apparatus and method

#109
20070102333
2007-05-10

Method of and device for detecting oil pollutions on water surfaces

#110
20050081881
2005-04-21

Laser-based cleaning method and system

#111
15884714
2019-09-17

Device for sensing photoluminescent materials in seawater