ClassID:

167827

G01N2021/3181 - 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 LEDs

Recent Application in this class:
#1
20260098802
2026-04-09

SYSTEMS AND METHODS FOR AQUEOUS NITRATE DETECTION

#2
20260096777
2026-04-09

WEARABLE RING-TYPE SENSOR DEVICES FOR MONITORING HEALTH AND WELLNESS CONDITIONS

#3
20260023012
2026-01-22

ISOTOPE RATIO MEASURING DEVICE USING ISOTOPE NOTCH FILTER

#4
20250347628
2025-11-13

IRRADIATION DEVICE AND PHOTOMETRIC DEVICE

#5
20250237598
2025-07-24

APPARATUSES, METHODS AND COMPUTER PROGRAM PRODUCTS FOR IMAGING A STRUCTURE AT LEAST PARTIALLY OBSCURED, IN A VISIBLE WAVELENGTH RANGE, BY A LIQUID

#6
20250215795
2025-07-03

PRESSURE TUNED INFRARED LIGHT EMITTING DIODE FOR DOWNHOLE SPECTROSCOPY

#7
20250198976
2025-06-19

CONCENTRATION COMPUTATION SECTION, CONCENTRATION MEASUREMENT SYSTEM, AND CONCENTRATION MEASUREMENT METHOD

#8
20250147200
2025-05-08

OPTICAL PROBE AND METHOD FOR IN SITU SOIL ANALYSIS

#9
20240402076
2024-12-05

OPTICAL ANALYZER AND OPTICAL ANALYSIS SYSTEM THEREFOR

#10
20240337595
2024-10-10

OPTICAL SENSOR

#11
20240302270
2024-09-12

A SYSTEM AND METHOD FOR IDENTIFYING A BIOLOGICAL SAMPLE IN A SAMPLE HOLDER, AND A BIOPSY DEVICE FOR OBTAINING A BIOLOGICAL SAMPLE OF TISSUE

#12
20240280478
2024-08-22

GAS SENSOR AND METHODS OF OPERATING THEREOF

#13
20240280473
2024-08-22

PHOTOLUMINESCENT IMAGING OF SEMICONDUCTOR SAMPLES

#14
20240164668
2024-05-23

METHODS AND DEVICES FOR DETECTING INTENSITY OF LIGHT WITH TRANSLUCENT DETECTOR

#15
20240118220
2024-04-11

INSPECTION DEVICE AND INSPECTION METHOD

#16
20240044784
2024-02-08

MOISTURE DETECTING APPARATUS FOR RECORDING MATERIAL AND IMAGE FORMING APPARATUS

#17
20230417658
2023-12-28

INSPECTION TOOL AND INSPECTION METHOD

#18
20230384476
2023-11-30

Optical probe and method for in situ soil analysis

#19
20230349876
2023-11-02

Gas concentration measurement system

#20
20230181112
2023-06-15

Wearable ring-type sensor devices for monitoring health and wellness conditions

#21
20230115210
2023-04-13

OPTICAL MODULE

#22
20230026607
2023-01-26

Optical probe comprising a waveguide and method for real-time and in-situ measurements of soil properties

#23
20220349817
2022-11-03

Moisture detecting apparatus for recording material and image forming apparatus

#24
20220316949
2022-10-06

Device and related method for the automatic control of the color tone of a reel of thread

#25
20220276162
2022-09-01

Apparatus for measuring multi-wavelength transmittance using learned LED temperature compensation model

#26
20220260484
2022-08-18

Gas concentration measurement apparatus and techniques

#27
20220252509
2022-08-11

MEASURING DEVICE AND METHOD FOR DETERMINING A SUBSTANCE CONCENTRATION

#28
20220214218
2022-07-07

Hyperspectral image measurement device and calibration method thereof, camera module and device for diagnosing skin and skin image processing method

#29
20220205925
2022-06-30

Flow cell system for optical fluid analysis and bioreactor system

#30
20220128453
2022-04-28

System and method for detecting biofilm growth in water systems

#31
20220080734
2022-03-17

Evaluating surfaces

#32
20220031169
2022-02-03

System and method for measurement selection and probe guiding in a gingivitis detector

#33
20220003686
2022-01-06

PROBE SUITABLE FOR MEASURING THE COMPOSITION OF AN OXIDISING GAS

#34
20210381954
2021-12-09

Broadband light source device and biochemical analyzing device

#35
20210356622
2021-11-18

Optical probe and method for in situ soil analysis

#36
20210356397
2021-11-18

ILLUMINATOR SYSTEMS HAVING LIGHT EMITTING DIODES WITH UV ACTIVATION

#37
20210333200
2021-10-28

Sensor characterization through forward voltage measurements

#38
20210262926
2021-08-26

Moisture detecting apparatus for recording material and image forming apparatus

#39
20210204816
2021-07-08

Near-infrared spectroscopy for sensing glycogen in muscle tissue

#40
20210196155
2021-07-01

Method and apparatus for light-weight, non-invasive, point of care diabetes screening device

#41
20210172867
2021-06-10

Apparatus and method for estimating bio-information

#42
20210172863
2021-06-10

Apparatus and method for biomolecular analysis

#43
20210088439
2021-03-25

Electronic device

#44
20210085228
2021-03-25

Methods and devices for detecting intensity of light with translucent detector

#45
20200408674
2020-12-31

Gas concentration measurement apparatus and techniques

#46
20200393365
2020-12-17

Light sensor and decay-time scanner

#47
20200309710
2020-10-01

Analyte measuring system and method

#48
20200298292
2020-09-24

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

#49
20200271575
2020-08-27

Moisture detecting apparatus for recording material and image forming apparatus

#50
20200269285
2020-08-27

Sorting or classifying apparatus

#51
20200249152
2020-08-06

SYSTEM OF MEASURING CONTAMINATION OF A WATER SAMPLE

#52
20200224240
2020-07-16

System and method for detecting biofilm growth in water systems

#53
20200200673
2020-06-25

Inferential fluid condition sensor and method thereof

#54
20200182698
2020-06-11

Hyper-spectral image measurement device and calibration method therefor, photographing module and device for skin diagnosis, skin diagnosis method, and skin image processing method

#55
20200049674
2020-02-13

DMD based UV absorption detector for liquid chromatography

#56
20190318597
2019-10-17

Chamberless air quality monitors with temperature sensing

#57
20190309253
2019-10-10

Device for supporting an image capturing device on a bioreactor, bioreactor with device for supporting an image capturing device, and method for propagation or cultivation of biological material

#58
20190261868
2019-08-29

Apparatus and system for measuring volume of blood loss

#59
20190226987
2019-07-25

Method for measuring air pollutants using a folded tubular photometer

#60
20190200904
2019-07-04

Method and apparatus for light-weight, non-invasive, point of care diabetes screening device

#61
20190187067
2019-06-20

Detection system for a multilayer film and method thereof using dual image capture devices for capturing forward scattered light and back scattered light

#62
20190162594
2019-05-30

Spectral reflectometer

#63
20190145890
2019-05-16

TIME-DIVISION MULTISPECTRA DETECTION DEVICE AND METHOD

#64
20190079004
2019-03-14

Systems and methods for optical spectrometer calibration

#65
20190069476
2019-03-07

Crop growth measurement device

#66
20190056317
2019-02-21

DEVICE AND METHOD FOR MEASURING TAR IN A TAR-ENVIRONMENT

#67
20190011355
2019-01-10

Multi-rotor wing unmanned aerial vehicle platform based crop growth monitoring method and device

#68
20180321204
2018-11-08

Portable nanoaptamer analyzer for detection of bisphenol A

#69
20180313796
2018-11-01

DMD based UV absorption detector for liquid chromatography

#70
20180292314
2018-10-11

Moisture detecting apparatus for recording material and image forming apparatus

#71
20180206739
2018-07-26

On-site device for detecting presence of a liquid

#72
20180202927
2018-07-19

Light-based shielding detection

#73
20180199871
2018-07-19

Methods and devices for detecting intensity of light with translucent detector

#74
20180164214
2018-06-14

Detection of fluid absorption spectrum

#75
20180156716
2018-06-07

Absorption spectrum detection of a fluid

#76
20180011007
2018-01-11

Arrangement for measuring gas concentrations

#77
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

#78
20170307518
2017-10-26

Dual wavelength source gas detector

#79
20170290518
2017-10-12

Apparatus and system for measuring volume of blood loss

#80
20170254746
2017-09-07

Concentration measuring method

#81
20170254743
2017-09-07

Optical concentration measuring method

#82
20170248576
2017-08-31

Blood coagulation analyzer and blood coagulation analyzing method

#83
20170115272
2017-04-27

Breath analyser and detection methods

#84
20170010248
2017-01-12

Apparatus for determining a measured value of a measurand in process automation technology and its method of use

#85
20160377530
2016-12-29

Tunable optical receiver

#86
20160356797
2016-12-08

Detector arrangement for blood culture bottles with colorimetric sensors

#87
20160169795
2016-06-16

Material analytical sensor and material analyzer

#88
20160143565
2016-05-26

Optical unit and optical analysis device

#89
20160076998
2016-03-17

Detection of chemical changes of system fluid via near infrared (NIR) spectroscopy

#90
20160076996
2016-03-17

Low-temperature safe sensor package and fluid properties sensor

#91
20160076995
2016-03-17

Optical devices for fluid sensing and methods therefor

#92
20160054294
2016-02-25

Breath analyser and detection methods

#93
20160005921
2016-01-07

Bi-directional dual-color light emitting device and systems for use thereof

#94
20150346085
2015-12-03

Onboard device and method for analyzing fluid in a heat engine

#95
20150338340
2015-11-26

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

#96
20150330905
2015-11-19

Methods and apparatus for surface classification

#97
20150300951
2015-10-22

Onboard device and method for analyzing fluid in a heat engine

#98
20150291993
2015-10-15

System and method for detecting biofilm growth in water systems

#99
20150260645
2015-09-17

Apparatus and method for measuring concentration of hemoglobin using photothermal effect

#100
20150153272
2015-06-04

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

#101
20150090885
2015-04-02

Material property measuring apparatus

#102
20140226149
2014-08-14

Optical sensing device for fluid sensing and methods therefor

#103
20130310669
2013-11-21

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

#104
20130135461
2013-05-30

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

#105
20130077097
2013-03-28

Apparatus, system and method for using an LED to identify a presence of a material in a gas and/or a fluid and/or determine properties of the material

#106
20130057865
2013-03-07

Apparatus and method for measuring an analyte such as bilirubin, using light

#107
20130016348
2013-01-17

Optical spectrometer with underfilled fiber optic sample interface

#108
20120287431
2012-11-15

Systems and methods for the identification of compounds using admittance spectroscopy

#109
20120253692
2012-10-04

Method and apparatus for measuring pH of medium solution

#110
20120220841
2012-08-30

Medical sensor using photonic crystal LED

#111
20120140227
2012-06-07

Bulbless spectrometer

#112
20120115183
2012-05-10

Detector arrangement for blood culture bottles with colorimetric sensors

#113
20120021455
2012-01-26

Detector arrangement for blood culture bottles with colorimetric sensors

#114
20120018925
2012-01-26

Inspection systems and methods for blow-molded containers

#115
20110313635
2011-12-22

Automotive-vehicle-borne miniature spectrometer having a single measurement and reference detector

#116
20110228274
2011-09-22

Ozone concentration sensor

#117
20110181870
2011-07-28

Particulate detector

#118
20110112385
2011-05-12

Apparatus and method for dating a body sample

#119
20110021890
2011-01-27

Set for determining blood type and cover body

#120
20100279332
2010-11-04

Method and device for characterizing biological tissue

#121
20100182604
2010-07-22

Device for optoelectronic measurement of the hydration of a plant in its natural environment

#122
20100053628
2010-03-04

Plant sensor

#123
20100045994
2010-02-25

Photometric apparatus and automatic analyzer

#124
20100027017
2010-02-04

Ozone concentration sensor

#125
20100020325
2010-01-28

Fuel property detection apparatus

#126
20090309960
2009-12-17

Portable multispectral imaging systems

#127
20090278286
2009-11-12

In-line inspection system for vertically profiling plastic containers using multiple wavelength discrete spectral light sources

#128
20090262351
2009-10-22

Optical product detection sensor

#129
20090097029
2009-04-16

Optical product detection sensor

#130
20090060783
2009-03-05

POLYMER CONCENTRATION MONITORING SYSTEM AND USE THEREOF

#131
20080252877
2008-10-16

Inspection of eggs in the presence of blood

#132
20080218733
2008-09-11

Method and device for determining an alcohol content of liquids

#133
20080161697
2008-07-03

Examination of subjects using photon migration with high directionality techniques

#134
20080002179
2008-01-03

Method and apparatus for determining blood oxygen

#135
20070282183
2007-12-06

Method and device for the identification of at least two substances of content of a body fluid

#136
20070129614
2007-06-07

Device and method for monitoring body fluid and electrolyte disorders

#137
20070107618
2007-05-17

Optical mine clearance probe and process for identification of a material

#138
20060263253
2006-11-23

Device for photometrically measuring the concentration of a chemical substance in a solution to be measured

#139
20060253016
2006-11-09

Systems and methods to assess one or more body fluid metrics

#140
20060180763
2006-08-17

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

#141
20060092328
2006-05-04

System for reducing signal interference in modulated signal communication

#142
20060084864
2006-04-20

Device and method for monitoring body fluid and electrolyte disorders

#143
20050269499
2005-12-08

Method and sensor for monitoring gas in a downhole environment

#144
20050200848
2005-09-15

Ozone concentration sensor

#145
16857849
2020-12-01

Sensor characterization through forward voltage measurements

#146
16687012
2022-06-07

Wrist-worn device and method for accurate blood oxygen saturation measurement

#147
16139916
2020-11-10

Point-of-care device for the colorimetric determination of L-phenylalanine in biological samples