ClassID:

167800

G01N21/276 - 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 using photo-electric detection ; circuits for computing concentration; Calibration, base line adjustment, drift correction with alternation of sample and standard in optical path

Recent Application in this class:
#1
20250271353
2025-08-28

FLUID ANALYZER WITH SELF-CHECK, LEAK DETECTION, AND ADJUSTABLE GAIN

#2
20240410822
2024-12-12

REFERENCE SWITCH ARCHITECTURES FOR NONCONTACT SENSING OF SUBSTANCES

#3
20240369484
2024-11-07

METHOD AND SYSTEM FOR SPECTRAL IMAGING

#4
20240288369
2024-08-29

Apparatus and method for optically characterizing a textile sample

#5
20230204497
2023-06-29

Reference switch architectures for noncontact sensing of substances

#6
20230089762
2023-03-23

FLUID ANALYZER WITH REMOVABLE TEST CELL FOR DETECTION AND QUANTITATION OF COMPOUNDS IN LIQUIDS

#7
20230061661
2023-03-02

Fluid analyzer with self-check, leak detection, and adjustable gain

#8
20220364988
2022-11-17

Method of analyzing a sample

#9
20220319048
2022-10-06

Enhanced measurement of photosynthetically active radiation (PAR) and image conversion therefor

#10
20220316862
2022-10-06

Optical measurement system, optical measurement method, and non-transitory storage medium having measurement program stored thereon

#11
20220276168
2022-09-01

Apparatus and method for optically characterizing a textile sample

#12
20220221404
2022-07-14

WATER QUALITY ANALYSIS SYSTEM, SENSOR MODULE, CALIBRATION MACHINE, AND METHOD FOR CALIBRATING WATER QUALITY ANALYSIS SYSTEM

#13
20220187196
2022-06-16

Spectrometer system and method for testing of same

#14
20220074862
2022-03-10

Portable water quality instrument

#15
20220057319
2022-02-24

Gas analysis device

#16
20220003663
2022-01-06

Concentration measurement device and concentration measurement and calibration method using the device

#17
20210349024
2021-11-11

Optical measurement device for reaction vessel and method therefor

#18
20210270738
2021-09-02

Method for calibrating or monitoring performance of an optical measurement device

#19
20210247298
2021-08-12

Measurement system based on optical interference and measuring method using same

#20
20210190679
2021-06-24

Spectral analysis apparatus and spectral analysis method

#21
20210080383
2021-03-18

Apparatus and method for measuring reflectivity of seabed sediments

#22
20210018435
2021-01-21

System and method to standardize whiteness calibration and measurement

#23
20210018432
2021-01-21

Reference switch architectures for noncontact sensing of substances

#24
20200355610
2020-11-12

Method for measuring optical signal detector performance

#25
20200319107
2020-10-08

System and method for monitoring a reaction within a receptacle vessel

#26
20200200678
2020-06-25

Optical sensing calibration system and method

#27
20200158630
2020-05-21

Measurement of Nitrate-Nitrogen Concentration in Soil based on Absorption Spectroscopy

#28
20200103345
2020-04-02

Methods and devices employing thermoplastics from thepoly aryletherketone (PAEK) family of semi-crystalline thermoplastics for calibration and/or monitoring of optical measurement

#29
20200011787
2020-01-09

Optical fluid analyzer

#30
20190317013
2019-10-17

Infra red spectrometer

#31
20190234873
2019-08-01

Turbidity sensor and method for measuring turbidity

#32
20190137397
2019-05-09

Optical measurement device for reaction vessel and method therefor

#33
20190136297
2019-05-09

Systems and methods for fluorescence detection with a movable detection module

#34
20190128810
2019-05-02

System for measuring optical signal detector performance

#35
20190041317
2019-02-07

Method for quantifying the amount of optically interfering gas impurities

#36
20190011414
2019-01-10

Wide range gas detection using an infrared gas detector

#37
20180238794
2018-08-23

Reference switch architectures for noncontact sensing of substances

#38
20180180544
2018-06-28

Use of a fluorescent material to detect failure or deteriorated performance of a fluorometer

#39
20180171387
2018-06-21

Systems and methods for fluorescence detection with a movable detection module

#40
20180136129
2018-05-17

Method of correcting a fluorescence image

#41
20180067048
2018-03-08

Unknown sample determining method, unknown sample determining instrument, and unknown sample determining program

#42
20180003620
2018-01-04

Impeller blade for calibrating light sensor

#43
20170328774
2017-11-16

Index for determining a quality of a color

#44
20170322148
2017-11-09

Measurement of nitrate-nitrogen concentration in soil based on absorption spectroscopy

#45
20170299484
2017-10-19

Apparatus for optical in-situ gas analysis

#46
20170219425
2017-08-03

Apparatus for an optical in-situ gas analysis

#47
20170191933
2017-07-06

Systems and methods for analyzing a sample and for monitoring the performance of an optical signal detector

#48
20170108430
2017-04-20

Optical fiber calibration connector

#49
20170059478
2017-03-02

Apparatuses and methods for performing a light-absorption measurement on a test sample and a compliance measurement on a reference sample

#50
20170024895
2017-01-26

Optical characteristic measuring apparatus

#51
20170010273
2017-01-12

Component measuring device

#52
20170010158
2017-01-12

Multi-angle spectral imaging measurement method and apparatus

#53
20170003166
2017-01-05

Infrared imaging system with automatic referencing

#54
20160363534
2016-12-15

Optical signal detection module

#55
20160363532
2016-12-15

Methods and devices employing thermoplastics from the polyaryletherketone (PAEK) family of semi-crystalline thermoplastics for calibration and/or monitoring of optical measurement devices

#56
20160313249
2016-10-27

CALIBRATION STANDARD FOR A DEVICE FOR IMAGE-BASED REPRESENTATION OF BIOLOGICAL MATERIAL

#57
20160305867
2016-10-20

Spectrometer calibration method and reference material

#58
20160266031
2016-09-15

Method of measuring isotope ratio

#59
20160146728
2016-05-26

Measurement of nitrate-nitrogen concentration in soil based on absorption spectroscopy

#60
20160003970
2016-01-07

In-situ calibration of tools

#61
20150355092
2015-12-10

System for applying phantom sample to evaluate optical analysis device, storage device storing instructions, method and phantom sample

#62
20140361173
2014-12-11

Device and method for identifying refrigerants

#63
20140299787
2014-10-09

Method and apparatus for aligning measured spectral radiance factors among different instruments

#64
20140095100
2014-04-03

Calibrating single plasmonic nanostructures for quantitative biosening

#65
20130344613
2013-12-26

Use of a fluorescent material to detect failure or deteriorated performance of a fluorometer

#66
20130330091
2013-12-12

Image forming apparatus

#67
20130310268
2013-11-21

Method and system for standardizing microscope instruments

#68
20130276509
2013-10-24

Optical gas analyzer device having means for calibrating the frequency spectrum

#69
20130258317
2013-10-03

Measurement of nitrate-nitrogen concentration in soil based on absorption spectroscopy

#70
20130196361
2013-08-01

Split sensor and housing assembly for flexible wall

#71
20130084642
2013-04-04

Method for calibrating and/or adjusting an analytical device for chemical substances in liquids, especially in aqueous solutions

#72
20130027701
2013-01-31

System and method for correcting spectral response using a radiometric correction filter

#73
20130019664
2013-01-24

Automated soil measurement device

#74
20120327411
2012-12-27

Spectrophotometer

#75
20120309103
2012-12-06

Luminescence detecting apparatuses and methods

#76
20120300055
2012-11-29

Integrated calibration sample bay for fluorescence readers

#77
20120250014
2012-10-04

Spectrophotometer and method for calibrating the same

#78
20120241622
2012-09-27

METHOD FOR DETERMINING THE 14C CONTENT OF A GAS MIXTURE AND ARRANGEMENT SUITABLE THEREFOR

#79
20120205547
2012-08-16

Method and apparatus for the optical determination of total organic carbon in aqueous streams

#80
20120200844
2012-08-09

Device for radiation absorption measurements and method for calibration thereof

#81
20120197575
2012-08-02

Method of absorbance correction in a spectroscopic heating value sensor

#82
20120166092
2012-06-28

BLOOD SUGAR VALUE ESTIMATION APPARATUS

#83
20120147368
2012-06-14

Automated soil measurement device

#84
20120133930
2012-05-31

Method and system for standardizing microscope instruments

#85
20120120397
2012-05-17

Hybrid gas analyzer with thermally insulated flow cell

#86
20120091346
2012-04-19

NDIR-two Beam Gas Analyser And Method For Determining The Concentration Of A Measuring Gas Component in a Gas Mixture by means of Said type of Gas Analyser

#87
20120085144
2012-04-12

In-situ sensor for automated measurements of gas content in liquid and related system and method

#88
20120038925
2012-02-16

Method for examining liquids and apparatus therefor

#89
20120002192
2012-01-05

Automated soil measurement device

#90
20110305598
2011-12-15

MICROFLUIDIC DEVICE

#91
20110299082
2011-12-08

Method of ellipsometric reconnaissance

#92
20110299070
2011-12-08

Method and system for standardizing microscope instruments

#93
20110235034
2011-09-29

Spectrophotometer

#94
20110229373
2011-09-22

ANALYZING APPARATUS AND CALIBRATION CARTRIDGE

#95
20110211763
2011-09-01

System and method for instrument response correction based on independent measurement of the sample

#96
20110208462
2011-08-25

System and method for instrument correction using transmission efficiency

#97
20110160073
2011-06-30

Systems and methods for fluorescence detection with a movable detection module

#98
20110155926
2011-06-30

Quantum efficiency measurement apparatus and quantum efficiency measurement method

#99
20110140003
2011-06-16

Test apparatus for an optical investigation system

#100
20110132063
2011-06-09

Calibration system and method of using mid-IR laser measure and monitor exhaust pollutant

#101
20110130995
2011-06-02

Spectrometric metrology of workpieces using a permanent window as a spectral reference

#102
20110116087
2011-05-19

Method and system for standardizing microscope instruments

#103
20110116086
2011-05-19

Method and system for standardizing microscope instruments

#104
20110102799
2011-05-05

Multi-grating biosensor for label-independent optical readers

#105
20110043618
2011-02-24

Integrated calibration sample bay for fluorescence readers

#106
20110031386
2011-02-10

Device and method for calibrating a sensor system

#107
20110007319
2011-01-13

Arrangement for Determining the Reflectivity of a Sample

#108
20110001968
2011-01-06

Spectrometer measuring head for analyzing characteristic variables of liquid, pasty or solid substances

#109
20100328656
2010-12-30

Hand-held light measuring device

#110
20100292581
2010-11-18

Dynamic Calibration of an Optical Spectrometer

#111
20100283994
2010-11-11

Measurement of nitrate-nitrogen concentration in soil based on absorption spectroscopy

#112
20100283993
2010-11-11

Automated soil measurement device

#113
20100282958
2010-11-11

METHOD FOR OPERATING AN FTIR SPECTROMETER, AND FTIR SPECTROMETER

#114
20100248387
2010-09-30

Method for measuring luminescence at a luminescence detection workstation

#115
20100197025
2010-08-05

READER DEVICE AND METHODS OF USE

#116
20100122564
2010-05-20

Liquid sample evaporator for vapor analysis

#117
20100121797
2010-05-13

STANDOFF DETECTION FOR NITRIC ACID

#118
20100110438
2010-05-06

Hybrid gas analyzer

#119
20100106444
2010-04-29

Spectrometric metrology of workpieces using a permanent window as a spectral reference

#120
20100091107
2010-04-15

HIGH SPEED OPTICAL MONITORING SYSTEM

#121
20100067009
2010-03-18

Point-of purchase (POP) spectrophotometer for open-view measurement of a color sample

#122
20100042348
2010-02-18

Calibration of optical analysis making use of multivariate optical elements

#123
20090303476
2009-12-10

Modulation cancellation method in laser spectroscopy

#124
20090261264
2009-10-22

Device for sterilizing a fluid

#125
20090233370
2009-09-17

Method for automatic assay of anionic detergents in seawater

#126
20090161111
2009-06-25

Calibration method for compensating for non-uniformity errors in sensors measuring specular reflection

#127
20090155921
2009-06-18

METHOD AND APPARATUS FOR READING TEST STRIPS

#128
20090112475
2009-04-30

Mobile soil mapping system for collecting soil reflectance measurements

#129
20090032445
2009-02-05

Multi-grade object sorting system and method

#130
20090021741
2009-01-22

Optical detection apparatus, optical detection method, and microfluidic system including the optical detection apparatus

#131
20080315102
2008-12-25

Infrared spectrometer

#132
20080314152
2008-12-25

Sensing device

#133
20080309929
2008-12-18

Method and system for standardizing microscope instruments

#134
20080292360
2008-11-27

Optical sensor and image forming apparatus including same

#135
20080290279
2008-11-27

Method for Standardising a Spectrometer

#136
20080259339
2008-10-23

System and method for acquiring and evaluating optical signals

#137
20080231853
2008-09-25

Qualitative Analysis System and Method for Agricultural Products in Harvesting Equipment

#138
20080156990
2008-07-03

Solder material test method and apparatus, control program and computer-readable recording medium

#139
20080137087
2008-06-12

System and method for measuring a harvest quality parameter on a harvesting device

#140
20080128622
2008-06-05

Infrared spectrometer

#141
20080117437
2008-05-22

Drift compensation for an optical metrology tool

#142
20080117416
2008-05-22

USE OF COHERENT RAMAN TECHNIQUES FOR MEDICAL DIAGNOSTIC AND THERAPEUTIC PURPOSES, AND CALIBRATION TECHNIQUES FOR SAME

#143
20080063569
2008-03-13

System and method for self-referencing a sensor in a micron-sized deep flow chamber

#144
20080046207
2008-02-21

Quantitative evaluation of a color filter

#145
20080034833
2008-02-14

Optical Spectroscopy Instrument Response Correction

#146
20080024760
2008-01-31

Measuring device for ingredient detection

#147
20080013128
2008-01-17

Calibration of electro-optical instrumentation within printing devices

#148
20080013085
2008-01-17

Self-calibrating optical reflectance probe system

#149
20070224853
2007-09-27

Apparatus and method for environmentally isolated analysis

#150
20070222985
2007-09-27

Dual function measurement system

#151
20070222980
2007-09-27

Self calibrating measurement system

#152
20070215801
2007-09-20

Method and apparatus for accurate calibration of a reflectometer by using a relative reflectance measurement

#153
20070183930
2007-08-09

Handheld optical diagnostic device having image system array

#154
20070171419
2007-07-26

Retardance measurement system and method

#155
20070110632
2007-05-17

Light measurement automated zeroing and referencing system

#156
20070059754
2007-03-15

Systems and methods for fluorescence detection with a movable detection module

#157
20070035818
2007-02-15

Two-dimensional spectral imaging system

#158
20070034792
2007-02-15

Method and apparatus for detecting gas concentration with infrared absorption characteristics

#159
20070023670
2007-02-01

UV transmittance measuring device

#160
20070002326
2007-01-04

Multi-grade object sorting system and method

#161
20060176483
2006-08-10

Optical measuring device for test strips

#162
20060126068
2006-06-15

Retardance measurement system and method

#163
20060121614
2006-06-08

Calibrator for fluorosensor

#164
20060109473
2006-05-25

Multi-grade object sorting system and method

#165
20060109458
2006-05-25

Standard plane sample and optical characteristic measurement system

#166
20060106557
2006-05-18

System and method for self-referencing a sensor in a micron-sized deep flow chamber

#167
20060088444
2006-04-27

Method for measuring luminescence at a luminescence detection workstation

#168
20060055932
2006-03-16

Self-referencing instrument and method thereof for measuring electromagnetic properties

#169
20060047445
2006-03-02

System and method for calibrating remote emissions sensing instruments

#170
20060046306
2006-03-02

Method for analyzing test substance by surface plasmon resonance analysis

#171
20060040230
2006-02-23

Apparatus for dental shade measurement

#172
20060007445
2006-01-12

Arsenic meter

#173
20050260762
2005-11-24

Method of in vitro evaluation of the retention and/or the transfer properties of cosmetics

#174
20050223905
2005-10-13

Food analyzer for self-propelled food loading units, and relative operating method

#175
20050213088
2005-09-29

Optical flow cell for tribological systems

#176
20050195391
2005-09-08

Calibration of instruments for measuring the permeability of a material

#177
20050190369
2005-09-01

Ion implant monitoring through measurement of modulated optical response

#178
20050153349
2005-07-14

Biopolymer array substrate thickness dependent automated focus-distance determination method for biopolymer array scanners

#179
20050112654
2005-05-26

System, method, and product for dynamic noise reduction in scanning of biological material

#180
20050083528
2005-04-21

Ion implant monitoring through measurement of modulated optical response

#181
20050082483
2005-04-21

Absorbance monitor

#182
20050078314
2005-04-14

Self-calibrating optical reflectance probe system

#183
20050012925
2005-01-20

Spectroscopic systems and methods

#184
20050007591
2005-01-13

Instantaneous polarization measurement system and method

#185
20050007590
2005-01-13

Retardance measurement system and method

#186
20050003554
2005-01-06

Automated sample analysis