ClassID:

167819

G01N21/3151 - CPC Classification

Classification description:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light; Systems in which incident light is modified in accordance with the properties of the material investigated; Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands; Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using two sources of radiation of different wavelengths

Recent Application in this class:
#1
20260049927
2026-02-19

ANALYZER FOR AUTOMATICALLY DETECTING AND QUANTIFYING TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE IN BIOCIDE PRODUCTS

#2
20260016401
2026-01-15

MULTI-WAVE DIFFERENTIAL ABSORPTION LIDAR

#3
20260009725
2026-01-08

SYSTEMS AND METHODS FOR DETERMINING CARBON DIOXIDE CONCENTRATIONS USING PEAK RATIO-BASED OPTICAL SPECTROMETRIC MEASUREMENTS

#4
20250244240
2025-07-31

SYSTEM FOR NONDESTRUCTIVE MEASUREMENT OF A SAMPLE

#5
20250218873
2025-07-03

PROCESSING AND DETECTING APPARATUS

#6
20250172491
2025-05-29

STATIC CONE PENETRATION TEST DEVICE AND TEST METHOD INCORPORATING HYPERSPECTRAL IMAGING TECHNOLOGY

#7
20250130162
2025-04-24

CHARGE-TO-DIGITAL CONVERTER FOR TIME-DOMAIN DUAL LIFETIME REFERENCING

#8
20250111923
2025-04-03

METHODS AND SYSTEMS FOR QUANTITATIVE COLORIMETRIC CAPNOMETRY

#9
20250012714
2025-01-09

Hyperspectral Sensing System and Method for Tracing/Tracking Refined Oil Products

#10
20250003916
2025-01-02

Devices, systems, and methods for performing optical and electrochemical assays

#11
20240426745
2024-12-26

Methods of characterizing a urine sample

#12
20240175815
2024-05-30

APPARATUS FOR QUANTITATIVELY DETECTING ISOTOPOLOGUE OF CARBON DIOXIDE USING DUAL-PHOTON ABSORPTION AND SPECTROMETER

#13
20240167945
2024-05-23

Device and spectrometer for quantitatively detecting carbon 14 isotope by dual-wavelength method

#14
20240118220
2024-04-11

INSPECTION DEVICE AND INSPECTION METHOD

#15
20240044795
2024-02-08

OPTICAL ANALYTE SENSOR

#16
20240044784
2024-02-08

MOISTURE DETECTING APPARATUS FOR RECORDING MATERIAL AND IMAGE FORMING APPARATUS

#17
20230375461
2023-11-23

METHODS, SYSTEMS, DEVICES, AND ELECTRONIC APPARATUSES FOR MEASURING CONCENTRATION OF WATER AND LIPIDS COMPONENTS

#18
20230227759
2023-07-20

Field-deployable Multiplexed Sampling and Monitoring Device and Bacterial Contamination Measurement Method

#19
20230141957
2023-05-11

Optical inspection device and inspecting method using the same

#20
20230041370
2023-02-09

Infrared absorption-based composition sensor for fluid mixtures

#21
20220349817
2022-11-03

Moisture detecting apparatus for recording material and image forming apparatus

#22
20220276161
2022-09-01

Method of imaging a sample material

#23
20220276156
2022-09-01

Methods of characterizing a urine sample

#24
20220270739
2022-08-25

Methods and systems for quantitative colorimetric capnometry

#25
20220214269
2022-07-07

Optical sensor containing a waveguide with holographic elements for measuring a pulse and blood oxygen saturation

#26
20220113246
2022-04-14

DEVICES, SYSTEMS, AND METHODS FOR PERFORMING OPTICAL ASSAYS

#27
20220054015
2022-02-24

Optical method for gingivitis detection

#28
20210325314
2021-10-21

Image processing method and device for CDSEM

#29
20210310978
2021-10-07

TECHNIQUES FOR PERFORMING OPTICAL AND ELECTROCHEMICAL ASSAYS WITH UNIVERSAL CIRCUITRY

#30
20210293740
2021-09-23

Devices, systems, and methods for performing optical and electrochemical assays

#31
20210262926
2021-08-26

Moisture detecting apparatus for recording material and image forming apparatus

#32
20210247313
2021-08-12

Information processing apparatus, information processing method, and program

#33
20210231559
2021-07-29

Minimization of noise in optical data capture for liquids

#34
20210204816
2021-07-08

Near-infrared spectroscopy for sensing glycogen in muscle tissue

#35
20210072262
2021-03-11

Method and apparatus for determining haemoglobin concentration

#36
20210033525
2021-02-04

Minimization of noise in optical data capture for liquids

#37
20200298292
2020-09-24

Integrated system for real-time anti-fouling and biofouling monitoring

#38
20200271575
2020-08-27

Moisture detecting apparatus for recording material and image forming apparatus

#39
20200158636
2020-05-21

Flash photo-oxidation device and higher order structural analysis

#40
20200116628
2020-04-16

Methods of characterizing a urine sample

#41
20200096380
2020-03-26

Apparatus for composite sheet weight determinations

#42
20200080994
2020-03-12

Simultaneous measurement of multiple analytes of a liquid assay

#43
20200065582
2020-02-27

ACTIVE HYPERSPECTRAL IMAGING WITH A LASER ILLUMINATOR AND WITHOUT DISPERSION

#44
20200009861
2020-01-09

Apparatus for detecting liquid discharge characteristics and apparatus for discharging liquid

#45
20190391073
2019-12-26

Detecting system and detecting method

#46
20190390244
2019-12-26

Method for determining whether or not sample contains Cercospora fungus or Pseudocercospora fungus

#47
20190346364
2019-11-14

MULTIPLE SEQUENTIAL WAVELENGTH MEASUREMENT OF A LIQUID ASSAY

#48
20190331659
2019-10-31

Blood analysis method, blood analyzer, and non-transitory computer readable medium

#49
20190317067
2019-10-17

Optical gas analyzer and method for measuring nitrogen oxides in an exhaust gas

#50
20190302084
2019-10-03

METHOD, DEVICE AND APPARATUS FOR MONITORING HALOGEN LEVELS IN A BODY OF WATER

#51
20190265158
2019-08-29

Method for analysing a gas

#52
20190261868
2019-08-29

Apparatus and system for measuring volume of blood loss

#53
20190234868
2019-08-01

Gas detection system

#54
20190226985
2019-07-25

ANALYTICAL TEST DEVICE

#55
20190204214
2019-07-04

Water content of a part of object evaluation method and water content of a part of object evaluation apparatus

#56
20190172192
2019-06-06

Systems and methods for determining regions suitable for gas imaging processes

#57
20190170640
2019-06-06

Agricultural sampling apparatus and system

#58
20190170639
2019-06-06

Methods of characterizing a urine sample

#59
20190170635
2019-06-06

Apparatus for and method of sensing fluorine concentration

#60
20190154660
2019-05-23

Whole blood SOsensor

#61
20190154649
2019-05-23

Method, device and apparatus for monitoring halogen levels in a body of water

#62
20190145890
2019-05-16

TIME-DIVISION MULTISPECTRA DETECTION DEVICE AND METHOD

#63
20190120819
2019-04-25

BLOOD ANALYSIS DEVICE

#64
20190085253
2019-03-21

Marker compositions with nitrogen compounds, and methods for making and using same

#65
20190056342
2019-02-21

Techniques for performing optical and electrochemical assays with universal circuitry

#66
20190056341
2019-02-21

Devices, systems, and methods for performing optical and electrochemical assays

#67
20190056329
2019-02-21

Devices, systems, and methods for performing optical assays

#68
20190056315
2019-02-21

SPECTRAL BLENDER

#69
20190041722
2019-02-07

Apparatus for analyzing a media, and associated egg identification apparatus and method

#70
20190041325
2019-02-07

Water content of a part of plant evaluation method and water content of a part of plant evaluation apparatus

#71
20190017924
2019-01-17

Apparatus for and method of sensing fluorine concentration

#72
20180372624
2018-12-27

Moisture content observation device, moisture content observation method, and cultivating device

#73
20180348124
2018-12-06

System and method for determining characteristics of an object or a sample

#74
20180340829
2018-11-29

Remote spectroscopy device with a composite laser source and associated remote spectroscopy method

#75
20180335440
2018-11-22

Methods and systems for quantitative colorimetric capnometry

#76
20180292314
2018-10-11

Moisture detecting apparatus for recording material and image forming apparatus

#77
20180284016
2018-10-04

Device for detecting plant stress and method for detecting plant stress

#78
20180251713
2018-09-06

Field-deployable multiplexed sampling and monitoring device and bacterial contamination measurement method

#79
20180206739
2018-07-26

On-site device for detecting presence of a liquid

#80
20180202926
2018-07-19

Close-coupled analyser

#81
20180149587
2018-05-31

Signal detection device and optical characteristics measurement device

#82
20180143130
2018-05-24

Plant matter sensor to determine health and/or nutritional content based on reflected signals at vertically displaced points on the plant matter

#83
20180052105
2018-02-22

SULFANE SULFUR-SELECTIVE FLUORESCENT PROBE

#84
20180011008
2018-01-11

Maturity determination device and maturity determination method

#85
20170336371
2017-11-23

Method and device for the optical scanning of a chromatographic sample

#86
20170315051
2017-11-02

Optical gas concentration measuring method by forming a differential signal using lights with different absorbabilities to a raw material in a gas flow path using a time-sharing method

#87
20170307518
2017-10-26

Dual wavelength source gas detector

#88
20170261426
2017-09-14

Substance detection sensor, substance detecting method, and substance detection system having dual light source with optical scanning

#89
20170254746
2017-09-07

Concentration measuring method

#90
20170254743
2017-09-07

Optical concentration measuring method

#91
20170248576
2017-08-31

Blood coagulation analyzer and blood coagulation analyzing method

#92
20170176406
2017-06-22

Test-element for a mobile water analysis arrangement

#93
20170138844
2017-05-18

Method for production and identification of Weyl semimetal

#94
20170115210
2017-04-27

Water content of a part of plant evaluation method and water content of a part of plant evaluation apparatus

#95
20170089829
2017-03-30

Differential absorption lidar

#96
20170074784
2017-03-16

Freshness estimation method, freshness estimation apparatus, and non-volatile recording medium

#97
20170024871
2017-01-26

Systems and methods for determining regions suitable for gas imaging processes

#98
20160356797
2016-12-08

Detector arrangement for blood culture bottles with colorimetric sensors

#99
20160334328
2016-11-17

Device for determining a concentration of a chemical substance

#100
20160327473
2016-11-10

Method and device for detection and spatial mapping of mercury concentration in water samples

#101
20160245830
2016-08-25

Methods and systems for quantitative colorimetric capnometry

#102
20160216249
2016-07-28

Method for determining lipids and other interfering substances in body fluid samples

#103
20160209329
2016-07-21

Method and device for recognizing a mixed or unmixed state of a sample

#104
20160178591
2016-06-23

Reheating cooked food such as meat

#105
20160178517
2016-06-23

Apparatus and method of gas analysis using laser light

#106
20160138972
2016-05-19

Optical sensor device

#107
20160076996
2016-03-17

Low-temperature safe sensor package and fluid properties sensor

#108
20160076995
2016-03-17

Optical devices for fluid sensing and methods therefor

#109
20160069795
2016-03-10

Ultra stable resonant cavity for gas analysis systems

#110
20150366511
2015-12-24

Method of analyzing and processing signals

#111
20150338340
2015-11-26

Method and apparatus for monitoring a level of a gaseous species of interest

#112
20150330906
2015-11-19

Freshness estimation method, freshness estimation apparatus, and non-volatile recording medium

#113
20150316469
2015-11-05

Optical measuring device

#114
20150268222
2015-09-24

Label free method for assessing chemical cardiotoxicity

#115
20150233817
2015-08-20

Method for determining an analyte in a water sample by means of a mobile water analysis arrangement

#116
20150181137
2015-06-25

Image output apparatus, image output method, and image output system

#117
20150177127
2015-06-25

Method and device for determining radical attrition potential

#118
20150153272
2015-06-04

Methods and apparatus for measuring the light absorbance of a substance in a solution

#119
20150109608
2015-04-23

Device and method for measuring hemoglobin

#120
20150099303
2015-04-09

Multiple wavelength light source for colorimetric measurement

#121
20150060674
2015-03-05

Device for optically determining the concentration of alcohol and carbohydrates in a liquid sample

#122
20150049335
2015-02-19

Sensor arrangement for measuring the concentration of a substance

#123
20140377135
2014-12-25

Filter systems including patterned optical analyte sensors and optical readers

#124
20140361171
2014-12-11

Two-channeled measurement apparatus

#125
20140306112
2014-10-16

Infrared sensor with multiple sources for gas measurement

#126
20140231680
2014-08-21

Method and apparatus for detecting clots in a liquid using measured light intensity

#127
20140226163
2014-08-14

Inspection apparatus with alternate side illumination

#128
20140226149
2014-08-14

Optical sensing device for fluid sensing and methods therefor

#129
20140154138
2014-06-05

Basic unit and test element for a mobile water analysis arrangement

#130
20140152992
2014-06-05

Method and apparatus for gold detection

#131
20140118745
2014-05-01

Multiple examinations of a sample

#132
20140070077
2014-03-13

Optical sensor device for detecting a pulse of a living body

#133
20140022551
2014-01-23

System and method for detecting the amount of stabilizer degradation in solid rocket propellant

#134
20140002667
2014-01-02

Differential Infrared Imager for Gas Plume Detection

#135
20130337568
2013-12-19

Method to measure surfactant in fluid

#136
20130310669
2013-11-21

PULMONARY PULSE OXIMETRY METHOD FOR THE MEASUREMENT OF OXYGEN SATURATION IN THE MIXED VENOUS BLOOD

#137
20130296714
2013-11-07

Sensing device, a method of preparing a sensing device and a personal mobile sensing system

#138
20130296673
2013-11-07

Optical measurement device and a method for an optical measurement

#139
20130296666
2013-11-07

Device and method for removal of ambient noise signal from a photoplethysmograph

#140
20130296665
2013-11-07

Photoplethysmographic device and methods therefore

#141
20130234856
2013-09-12

Evaluating scattered-light signals in an optical hazard detector and outputting a dust/steam warning or a fire alarm

#142
20130202214
2013-08-08

Shape and photometric invariants recovery from polarisation images

#143
20130190580
2013-07-25

Analyzing photon density waves in a medical monitor

#144
20130186279
2013-07-25

Filter systems including patterned optical analyte sensors and optical readers

#145
20130169967
2013-07-04

Alignment registration feature for analyte sensor optical reader

#146
20130152464
2013-06-20

Sensor system and method for determining an optical property of a plant

#147
20130141728
2013-06-06

Device for selecting a specific matter

#148
20130135461
2013-05-30

Ambient reflectivity absorption system for identifying precious or semi-precious materials and associated methods

#149
20130075615
2013-03-28

Infrared sensor with multiple sources for gas measurement

#150
20130046188
2013-02-21

METHOD OF ANALYZING AND PROCESSING SIGNALS

#151
20130046187
2013-02-21

Method of analyzing and processing signals

#152
20130046186
2013-02-21

METHOD OF ANALYZING AND PROCESSING SIGNALS

#153
20130046185
2013-02-21

Method of analyzing and processing signals

#154
20130046184
2013-02-21

Method of analyzing and processing signals

#155
20130046161
2013-02-21

METHOD OF ANALYZING AND PROCESSING SIGNALS

#156
20130046160
2013-02-21

METHOD OF ANALYZING AND PROCESSING SIGNALS

#157
20130046157
2013-02-21

METHOD OF ANALYZING AND PROCESSING SIGNALS

#158
20130046156
2013-02-21

Method of analyzing and processing signals

#159
20130019332
2013-01-17

CROP AUTOMATED RELATIVE MATURITY SYSTEM

#160
20130016356
2013-01-17

Method and apparatus for gold detection

#161
20130016348
2013-01-17

Optical spectrometer with underfilled fiber optic sample interface

#162
20130010288
2013-01-10

Filter systems including optical analyte sensors and optical readers

#163
20130008086
2013-01-10

AUTOMATED SYSTEM FOR ANALYZING PLANT VIGOR

#164
20130003043
2013-01-03

Measuring system and measuring method, in particular for determining blood glucose

#165
20120242826
2012-09-27

Multi-spectral imaging system and method of surface inspection therewith

#166
20120223515
2012-09-06

DETECTING ETHANOL AND WATER CONCENTRATIONS IN FUEL

#167
20120220841
2012-08-30

Medical sensor using photonic crystal LED

#168
20120214250
2012-08-23

Method and apparatus for measuring PH of solution

#169
20120206727
2012-08-16

Optical absorbance measurement apparatus, method, and applications

#170
20120203473
2012-08-09

Apparatus and method for measuring semiconductor carrier lifetime

#171
20120190944
2012-07-26

Devices and methods for non-invasive optical physiological measurements

#172
20120184832
2012-07-19

Manual and automatic probe calibration

#173
20120115183
2012-05-10

Detector arrangement for blood culture bottles with colorimetric sensors

#174
20120059234
2012-03-08

Blood chamber for an optical blood monitoring system

#175
20120037326
2012-02-16

Device for determining the water content of a target

#176
20120021455
2012-01-26

Detector arrangement for blood culture bottles with colorimetric sensors

#177
20110317164
2011-12-29

Multiple wavelength cavity ring down gas sensor

#178
20110245636
2011-10-06

Multi-wavelength photon density wave system using an optical switch

#179
20110228274
2011-09-22

Ozone concentration sensor

#180
20110223681
2011-09-15

Mobile water analysis arrangement and method for determining an analyte in a water sample

#181
20110212538
2011-09-01

Method for determining an analyte in a water sample by means of a mobile water analysis arrangement

#182
20110188042
2011-08-04

Self referencing LED detection system for spectroscopy applications

#183
20110164248
2011-07-07

System and method for high precision isotope ratio destructive analysis

#184
20110152647
2011-06-23

DIODE LASER DEVICE FOR THE NON-INVASIVE MEASUREMENT OF GLYCAEMIA

#185
20110134425
2011-06-09

48-channel arrayed isosbestic wavelength detection system

#186
20110122396
2011-05-26

Photonic measurement instrument using fiber optics

#187
20110102768
2011-05-05

Method of determining glucose concentration of a whole blood sample

#188
20110077485
2011-03-31

Method of analyzing photon density waves in a medical monitor

#189
20110047636
2011-02-24

Crop Automated Relative Maturity System

#190
20110043805
2011-02-24

Automated soybean phenotyping for iron deficiency chlorosis

#191
20110041399
2011-02-24

AUTOMATED SYSTEM FOR ANALYZING PLANT VIGOR

#192
20110032507
2011-02-10

Scanner system and method for registering surfaces

#193
20110021890
2011-01-27

Set for determining blood type and cover body

#194
20110007312
2011-01-13

SYSTEM AND METHOD FOR HIGH PRECISION ISOTOPE RATIO DESTRUCTIVE ANALYSIS

#195
20100279332
2010-11-04

Method and device for characterizing biological tissue

#196
20100279326
2010-11-04

Method for determining an analyte concentration in a fluid

#197
20100249550
2010-09-30

Method And Apparatus For Optical Filtering Of A Broadband Emitter In A Medical Sensor

#198
20100231893
2010-09-16

Method and device for spectrally detecting presence of blood

#199
20100141765
2010-06-10

Optical device for motor vehicles, for detecting the condition of the road surface

#200
20100128944
2010-05-27

CYTOLOGICAL IMAGING SYSTEMS AND METHODS

#201
20100078560
2010-04-01

GAS DETECTOR

#202
20100073675
2010-03-25

Atomic absorption spectrophotometer

#203
20100053621
2010-03-04

Apparatus and method for measuring the concentration of gases in a sterilization chamber

#204
20100027017
2010-02-04

Ozone concentration sensor

#205
20090323068
2009-12-31

Gas analyzer and gas analyzing method

#206
20090270703
2009-10-29

Manual and automatic probe calibration

#207
20090240125
2009-09-24

Integrated pulse oximetry sensor

#208
20090234209
2009-09-17

Tissue oximeter with source and detector sensors

#209
20090101822
2009-04-23

SYSTEM AND METHOD FOR SENSING FUEL MOISTURIZATION

#210
20090099248
2009-04-16

INHIBITORS OF D-AMINO ACID OXIDASE

#211
20080278707
2008-11-13

Cytological imaging system and method

#212
20080246955
2008-10-09

Method of detecting alcohol concentration and alcohol concentration detecting apparatus

#213
20080239293
2008-10-02

Portable meter to measure chlorophyll, nitrogen and water and methods

#214
20080234560
2008-09-25

Optical measurement instrument for living body semiconductor laser installation for living body light measuring device

#215
20080198360
2008-08-21

Transmission spectroscopy system for use in the determination of analytes in body fluid

#216
20080174768
2008-07-24

Self referencing LED detection system for spectroscopy applications

#217
20080161697
2008-07-03

Examination of subjects using photon migration with high directionality techniques

#218
20080156991
2008-07-03

Real-time, continuous-wave terahertz imaging using a microbolometer focal-plane array

#219
20080144005
2008-06-19

METHOD FOR ANALYZING BLOOD CONTENT OF CYTOLOGICAL SPECIMENS

#220
20080108886
2008-05-08

Source and detector sensor arrangement

#221
20080106792
2008-05-08

Medical device probe with source and detector sensors

#222
20080074647
2008-03-27

Gas concentration measuring apparatus

#223
20080062425
2008-03-13

Diffuse reflectance readhead

#224
20080018994
2008-01-24

Cytological imaging systems and methods

#225
20080013812
2008-01-17

Cytological imaging systems and methods

#226
20080013168
2008-01-17

Cytological imaging systems and methods

#227
20070291253
2007-12-20

Measuring apparatus

#228
20070208238
2007-09-06

Three diode optical bridge system

#229
20070112260
2007-05-17

Manual and automatic probe calibration

#230
20070098595
2007-05-03

Portable co-oximeter

#231
20070055119
2007-03-08

Optical probe for optical imaging system

#232
20070029487
2007-02-08

Ultra low cost NDIR gas sensors

#233
20060290934
2006-12-28

Gas sensor

#234
20060258921
2006-11-16

Method of analyzing and processing signals

#235
20060249681
2006-11-09

Gas sensor arrangement with improved long term stability and measuring method

#236
20060208917
2006-09-21

Gas sensor for use as a fire detector

#237
20060180763
2006-08-17

Gas detector that uses infrared light and method of detecting gas concentration

#238
20060104499
2006-05-18

Apparatus and methods for verifying the location of areas of interest within a sample in an imaging system

#239
20060077541
2006-04-13

Cytological imaging systems and methods

#240
20060077538
2006-04-13

Cytological imaging systems and methods

#241
20060072118
2006-04-06

Optical image measuring apparatus

#242
20060038130
2006-02-23

Apparatus for on-line monitoring quality/condition of fluids

#243
20060011842
2006-01-19

Gas sensor arrangement with reduced settling time

#244
20050270534
2005-12-08

System and method for analyzing microbial growth

#245
20050259261
2005-11-24

Sample analyzer

#246
20050200964
2005-09-15

Optical device producing two beams capable of reaching a common sensor

#247
20050200848
2005-09-15

Ozone concentration sensor

#248
20050167594
2005-08-04

Apparatus for on-line monitoring quality/condition of fluids

#249
20050122525
2005-06-09

Use of scanning beam for differential evaluation of adjacent regions for change in reflectivity

#250
20050079627
2005-04-14

Absorbance monitoring

#251
20050057753
2005-03-17

Instrument and method for testing fluid characteristics

#252
20050054508
2005-03-10

Control device for the separate collection of blood components in output from a blood centrifugation cell

#253
18238300
2024-02-06

Reflective depth interrogation for analyte measurement in liquids

#254
18114414
2023-09-05

Temperature adjusted modulation of a signal center wavelength in liquid absorption spectroscopy

#255
16252749
2020-03-17

Wideband optical sensor and use thereof in dispensing systems