ClassID:

169097

G01N33/287 - 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 Sulfur content

Recent Application in this class:
#1
20260049578
2026-02-19

DETERMINATION OF FUEL CHARACTERISTICS

#2
20250093324
2025-03-20

GROUP-TYPE ANALYSIS OF HYDROCARBON SAMPLES

#3
20230324361
2023-10-12

ELEMENTAL SULFUR ANALYSIS IN FLUIDS

#4
20230274804
2023-08-31

METHOD TO PREPARE VIRTUAL ASSAY USING NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

#5
20230274802
2023-08-31

Method to prepare virtual assay using Fourier transform ion cyclotron resonance mass spectroscopy

#6
20230274801
2023-08-31

METHOD TO PREPARE VIRTUAL ASSAY USING NEAR INFRARED SPECTROSCOPY

#7
20230193832
2023-06-22

Determination of fuel characteristics

#8
20230193831
2023-06-22

Determination of fuel characteristics

#9
20230176031
2023-06-08

SULFUR AND AMORPHOUS DITHIAZINE MEASUREMENT

#10
20230176018
2023-06-08

Petroleum composition stitching using boiling curves

#11
20230035469
2023-02-02

Creating a hydrogen sulfide crude oil reference standard

#12
20220365008
2022-11-17

Apparatus and method for x-ray fluorescence analysis

#13
20210396133
2021-12-23

CONTRAST COMPONENT COATING FOR SENSOR ANALYSIS

#14
20210246392
2021-08-12

Fuels and processes for producing fuels

#15
20210231633
2021-07-29

Graphene-based PPB level sulfur detector

#16
20210156806
2021-05-27

Method for determining the presence of an acidic sulfide species in a non-aqueous liquid using a metal complex dye

#17
20210156797
2021-05-27

Method for estimating sulfur component concentration in gasoline

#18
20210108513
2021-04-15

Sampling chamber with hydrogen sulfide-reactive scavenger

#19
20210102932
2021-04-08

Elemental sulfur analysis in fluids

#20
20200400645
2020-12-24

System and method of characterizing crude oil and its derivatives by combining total sulfur determination and FT-ICR mass spectrometry

#21
20200355668
2020-11-12

Device, system, and method for analyzing transformer oil

#22
20200191762
2020-06-18

PROCEDURE FOR MEASURING TOTAL REACTIVE SULFUR

#23
20200096492
2020-03-26

Screening method for assessing the HS release capacity of a sulfur containing sample

#24
20200088708
2020-03-19

Quantifying organic and inorganic sulfur components in petroleum material

#25
20200072147
2020-03-05

Method of analyzing fuel component using an RF sensor for a vehicle

#26
20200033315
2020-01-30

METHODS FOR DETERMINING RESIDUAL SURFACTANT CONCENTRATIONS IN OIL AND WATER PHASES

#27
20200032147
2020-01-30

Viscosity reduction of crude oil through structure determination of asphaltene molecule

#28
20190390548
2019-12-26

Sampling chamber with hydrogen sulfide-reactive scavenger

#29
20190339259
2019-11-07

Method for diagnosing the sulphur nutrition state of a plant

#30
20190284487
2019-09-19

Selective liquid-liquid extraction of oxidative desulfurization reaction products

#31
20190234928
2019-08-01

Prediction of crude oil blend compatibility and blend optimization for increasing heavy oil processing

#32
20190227047
2019-07-25

CONDITION DIAGNOSIS AND A LIFE-EXTENDING TREATMENT METHOD FOR AN ELECTRIC APPARATUS CONTAINING INSULATION OIL AND ITS ASSOCIATED SYSTEM

#33
20190187119
2019-06-20

Determination of total base number in lubricants

#34
20190187030
2019-06-20

Inspection apparatus and inspection system

#35
20190107524
2019-04-11

Graphene-based PPB level sulfur detector in fuels

#36
20190101519
2019-04-04

Quantifying organic and inorganic sulfur components

#37
20190092634
2019-03-28

Apparatus and downhole tools for measuring hydrogen sulfide in downhole fluids

#38
20190064076
2019-02-28

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

#39
20180275107
2018-09-27

Power transformer copper sulfide monitoring system

#40
20180165424
2018-06-14

METHOD FOR DYNAMIC BIAS MANAGEMENT BETWEEN ONLINE PROCESS ANALYZERS AND REFEREE TESTS

#41
20180155634
2018-06-07

Viscosity reduction of crude oil through structure determination of asphaltene molecule

#42
20180045705
2018-02-15

Methods of measuring hydrogen sulfide concentrations in reservoir fluids

#43
20170285211
2017-10-05

Methods and apparatus for measuring hydrogen sulfide in downhole fluids

#44
20170269054
2017-09-21

Analytical method for optimizing efficiency of hydrogen sulfide scavengers

#45
20170176404
2017-06-22

Method and relative system for the detection and quantification of the H2S in drilling mud

#46
20170153218
2017-06-01

Methods of detecting sulfur-containing compounds

#47
20170082588
2017-03-23

Device to measure the corrosive sulfur species formation rate in power transformers and a method of using the same

#48
20170023485
2017-01-26

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

#49
20170009695
2017-01-12

Control system and control method for internal combustion engine

#50
20160244679
2016-08-25

SELECTIVE LIQUID-LIQUID EXTRACTION OF OXIDATIVE DESULFURIZATION REACTION PRODUCTS

#51
20160215617
2016-07-28

Sampling chamber with hydrogen sulfide-reactive scavenger

#52
20160097758
2016-04-07

Fuel property sensor

#53
20160061804
2016-03-03

Simple method for the detection of sulfur compounds in crude oils and diesel

#54
20160025699
2016-01-28

Determination of the distribution of reactive and non-reactive sulfur in petroleum and its fractions

#55
20150192559
2015-07-09

DIAGNOSIS METHOD AND MAINTENANCE METHOD FOR OIL-FILLED ELECTRICAL EQUIPMENT

#56
20150135806
2015-05-21

Method for fast estimation of distillation residues and coke characteristics

#57
20140363893
2014-12-11

DIAGNOSING METHOD FOR OIL-FILLED ELECTRICAL EQUIPMENT

#58
20140004611
2014-01-02

Method for determining the content of hydrogen sulfide in crude and residual oils

#59
20130134367
2013-05-30

Electric insulating oil inspection method, electric insulating oil treatment method, and oil-filled electric device maintenance method

#60
20130084646
2013-04-04

QUANTIFYING ELEMENTAL SULFUR IN LIQUID HYDROCARBONS

#61
20130071934
2013-03-21

Method and system for measurement of reservoir fluid properties

#62
20130068965
2013-03-21

Biofuel degradation sensor based on fluorescence measurements

#63
20130047963
2013-02-28

WARRANTY VIOLATION DETECTION SYSTEM FOR DISALLOWED FUELS

#64
20130044324
2013-02-21

Light Based Fuel Sulfur Sensor and System

#65
20130034909
2013-02-07

DIAGNOSIS METHOD AND DIAGNOSIS APPARATUS FOR OIL-FILLED ELECTRICAL APPARATUS

#66
20120197559
2012-08-02

METHOD OF PREDICTING PROBABILITY OF ABNORMALITY OCCURRENCE IN OIL-FILLED ELECTRICAL DEVICE

#67
20120193230
2012-08-02

Electrochemical sulfur sensor and the method of making the same

#68
20120192626
2012-08-02

Zinc oxide sulfur sensors and method of using said sensors

#69
20120174656
2012-07-12

Zinc oxide sulfur sensor measurement system

#70
20120138364
2012-06-07

System and method for assessing hydrogen sulfide in a hydrocarbon extraction well in situ in an ongoing manner

#71
20120129267
2012-05-24

Sulfur breakthrough detection assembly for use in a fuel utilization system and sulfur breakthrough detection method

#72
20110246149
2011-10-06

METHOD FOR PREDICTING POSSIBILITY OF OCCURRENCE OF ANOMALY IN OIL-FILLED ELECTRICAL APPARATUS

#73
20110223672
2011-09-15

Integrated methods for corrosivity, ageing and fingerprinting determination, as well as diagnosis, decontamination, depolarisation and detoxification of oils

#74
20110209525
2011-09-01

Simulation distillation by comprehensive two-dimensional gas chromatography

#75
20110202288
2011-08-18

Lifetime assessment apparatus and method for oil-filled electrical device, and degradation suppression apparatus and method for oil-filled electrical device

#76
20110090034
2011-04-21

Oil immersed electrical apparatus

#77
20110088947
2011-04-21

Process for determining the presence and/or quantity of HS in subsoil and related apparatus

#78
20110068005
2011-03-24

DEVICE FOR DETERMINING SULFUR CONTENT IN FUEL

#79
20110012625
2011-01-20

Zinc oxide sulfur sensor

#80
20100243480
2010-09-30

Measurement of hydrogen sulphide and thiols in fluids

#81
20100200104
2010-08-12

Fuel system for a floating unit, and method for the operation thereof

#82
20100192673
2010-08-05

Diagnostic method for oil-filled electrical apparatus

#83
20100136699
2010-06-03

SAMPLE PLATE

#84
20100120162
2010-05-13

PROCESS FOR DETERMINING SULFUR CONTENT IN FUEL

#85
20090317299
2009-12-24

Light based fuel sulfur sensor and system

#86
20090241638
2009-10-01

Device for detection of sulfur concentration in fuel or oil

#87
20080314127
2008-12-25

Sulfur in fuel tester

#88
20080213913
2008-09-04

Combustion analysis apparatus and method

#89
20080165361
2008-07-10

METHOD OF ANALYZING SULFUR CONTENT IN FUELS

#90
20080159474
2008-07-03

Dual source XRF system

#91
20070295648
2007-12-27

Method for the measurement of the reactive molecular species in liquid petroleum and liquid petroleum products

#92
20070196925
2007-08-23

Determination of total base number in marine engine lubricants by elements

#93
20060258014
2006-11-16

Method for estimating the sulfur content in the fuel of an internal combustion engine

#94
20060258013
2006-11-16

Method for estimating the sulfur content in the fuel of an internal combustion engine

#95
20060243603
2006-11-02

Methods and apparatus for the measurement of hydrogen sulphide and thiols in fluids

#96
20050074365
2005-04-07

Apparatus for trace sulfur detection using UV fluorescence

#97
20050069455
2005-03-31

Chemical analyzer for sulfur

#98
17853144
2023-02-21

Aviation fuel

#99
15843839
2020-06-23

Method of crude oil analysis