ClassID:

169665

G01N2201/0668 - CPC Classification

Classification description:

Features of devices classified in; Illumination; Optics; Modifiable path; multiple paths in one sample Multiple paths; optimisable path length

Recent Application in this class:
#1
20260118259
2026-04-30

Method and Apparatus for Measuring Absorption Coefficient of a Medium

#2
20260110628
2026-04-23

Optical System for Optical Examination of a Test Sample

#3
20260086035
2026-03-26

MICROSCOPE-BASED SYSTEM AND METHOD OF DETERMINING BEAM PROCESSING PATH

#4
20260068602
2026-03-05

DEFECT DETECTION IN PACKAGING APPLICATION

#5
20260036516
2026-02-05

SYSTEM AND METHOD FOR MEASURING BIDIRECTIONAL REFLECTANCE DISTRIBUTION FUNCTION

#6
20250297951
2025-09-25

GAS DETECTION DEVICE AND CONTROL METHOD FOR GAS DETECTION DEVICE

#7
20250271350
2025-08-28

NESTED SLIT DESIGN FOR SINGLE RECEIVING OPTICAL CHANNEL PARTICULATE SENSOR

#8
20250224334
2025-07-10

A METHOD FOR ANALYZING MILK, A METHOD FOR ANALYZING THE CONTENT OF CARBOHYDRATES IN MILK AND A DEVICE FOR ANALYZING MILK

#9
20250189441
2025-06-12

Device, system and method for optical gas analysis

#10
20250172489
2025-05-29

TIME-RESOLVED SPECTRUM RAPID MEASUREMENT SYSTEM AND METHOD

#11
20250067659
2025-02-27

TESTING DEVICE FOR AN OPTICAL SAMPLE AND METHOD FOR TESTING AN OPTICAL SAMPLE

#12
20250060607
2025-02-20

BEAM SPLITTER USING MULTI-REFRACTIVE INDEX LAYER AND DEFECTIVE ELEMENT DETECTING DEVICE COMPRISING SAME

#13
20250052690
2025-02-13

DUAL LENS INSPECTION DEVICE

#14
20240369475
2024-11-07

AN IMPROVED SAMPLE HOLDER

#15
20240369472
2024-11-07

Optical Flow Cell

#16
20240319079
2024-09-26

DETECTING SYSTEM USING SPECTRUM MEASUREMENT DEVICE

#17
20240310278
2024-09-19

System and method for authenticating and classifying products using hyper-spectral imaging

#18
20240264087
2024-08-08

DEVICE FOR MEASURING AT LEAST ONE GASEOUS OR SOLID MATERIAL

#19
20240255416
2024-08-01

WATER QUALITY SENSOR AND METHOD FOR MEASURING CONCENTRATION OF SUBSTANCE IN WATER

#20
20240230531
2024-07-11

ACCURATE TURBIDITY MEASUREMENT SYSTEM AND METHOD, USING SPECKLE PATTERN

#21
20240175812
2024-05-30

HYBRID SYSTEMS AND METHODS FOR CHARACTERIZING STRESS IN CHEMICALLY STRENGTHENED TRANSPARENT SUBSTRATES

#22
20240133808
2024-04-25

ACCURATE TURBIDITY MEASUREMENT SYSTEM AND METHOD, USING SPECKLE PATTERN

#23
20240110832
2024-04-04

Method and Apparatus for Spectrophotometry of Turbid Media

#24
20240044776
2024-02-08

Microfluidic detection device

#25
20240011915
2024-01-11

INSPECTION APPARATUS AND INSPECTION METHOD

#26
20230221250
2023-07-13

METHOD AND APPARATUS FOR DETERMINING OPTICAL DENSITY OF A SOLUTION

#27
20230120444
2023-04-20

Gas detection using differential path length measurement

#28
20230101434
2023-03-30

Apparatus and Method for Measuring the Light Absorbance of a Substance in a Solution

#29
20220252570
2022-08-11

Total organic carbon sensor utilizing down conversion

#30
20220205925
2022-06-30

Flow cell system for optical fluid analysis and bioreactor system

#31
20220146413
2022-05-12

System suitability method for use with protein concentration determination by slope

#32
20220026352
2022-01-27

Beam conducting cavity structure, gas sensor and method for production thereof

#33
20220018771
2022-01-20

SYSTEM AND METHOD FOR DETECTING A GIVEN GAS SPECIES PRESENT IN A GASEOUS SAMPLE USING GAS FILTER CORRELATION SPECTROSCOPY

#34
20220018757
2022-01-20

Optical flow cell for an optical measuring device

#35
20210396671
2021-12-23

Optical density testing system and optical density testing device

#36
20210341389
2021-11-04

SIMULTANEOUS TOP-DOWN AND ROTATIONAL SIDE-VIEW FLUORESCENCE IMAGER FOR EXCISED TISSUE

#37
20210096059
2021-04-01

Apparatus and method for measuring the light absorbance of a substance in a solution

#38
20200386677
2020-12-10

Gas detection using differential path length measurement

#39
20200249177
2020-08-06

Reflected light measurement device

#40
20200064263
2020-02-27

Apparatus and method for forming an alignment cell

#41
20200025744
2020-01-23

OPTICAL SECTIONING APPARATUS USING ADVANCED OPTICAL INTERFERENCE MICROSCOPY

#42
20190318597
2019-10-17

Chamberless air quality monitors with temperature sensing

#43
20190310182
2019-10-10

Optical flow cell

#44
20190293551
2019-09-26

Optical flow cell apparatus and method for reducing deflection of sample chamber

#45
20190226987
2019-07-25

Method for measuring air pollutants using a folded tubular photometer

#46
20190212276
2019-07-11

Pattern structure inspection device and inspection method

#47
20190212256
2019-07-11

Sensor for a virtually simultaneous measurement of a transmission and/or forward scattering and/or remission and for a simultaneous measurement of the transmission and forward scattering or transmission and remission of a liquid sample

#48
20190183343
2019-06-20

Systems and methods for quasi-ballistic photon optical coherence tomography in diffusive scattering media using a lock-in camera detector

#49
20190113442
2019-04-18

Analysis device

#50
20190049364
2019-02-14

Long path cell

#51
20190011360
2019-01-10

Optically transparent films for measuring optically thick fluids

#52
20180335408
2018-11-22

COMBINED FLUORESCENCE AND ABSORPTION DETECTOR FOR ON-COLUMN DETECTION AFTER CAPILLARY SEPARATION TECHNIQUES

#53
20180252633
2018-09-06

Optical flow cell and test head apparatus

#54
20180202919
2018-07-19

Path length calibration system and method

#55
20180067040
2018-03-08

Optical flow cell for an optical measuring device

#56
20180052099
2018-02-22

System and method for generating multi-channel tunable illumination from a broadband source

#57
20180011007
2018-01-11

Arrangement for measuring gas concentrations

#58
20170363538
2017-12-21

Optical flow cell apparatus and method for reducing deflection of sample chamber

#59
20170307519
2017-10-26

Sample cell

#60
20170292918
2017-10-12

Determining a configuration for an optical element positioned in a collection aperture during wafer inspection

#61
20170254752
2017-09-07

Optical nitrate sensor for multiparameter water quality measurement

#62
20170082543
2017-03-23

Instrument and method for detecting analytes

#63
20170082533
2017-03-23

Path length calibration system and method

#64
20170074791
2017-03-16

Device for measuring polarization degree and refractive index

#65
20160341660
2016-11-24

Method and device for measuring the concentration of substances in gaseous or fluid media through optical spectroscopy using broadband light sources

#66
20160327493
2016-11-10

System and method for oblique incidence scanning with 2D array of spots

#67
20160178508
2016-06-23

Method, device and sensor for determining an absorption behavior of a medium

#68
20150377797
2015-12-31

Determining a configuration for an optical element positioned in a collection aperture during wafer inspection

#69
20150377773
2015-12-31

Motorized variable path length cell for spectroscopy

#70
20150293016
2015-10-15

Optically transparent films for measuring optically thick fluids

#71
20150226681
2015-08-13

Infrared-based metrology for detection of stress and defects around through silicon vias

#72
20150090880
2015-04-02

Optical spectrometers

#73
20150064737
2015-03-05

Imaging apparatus and imaging method

#74
20140367591
2014-12-18

MULTICOLOUR EXCITATION MODULE FOR A MULTIPHOTON IMAGING SYSTEM AND ASSOCIATED METHOD AND SYSTEM

#75
20140231680
2014-08-21

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

#76
20130188170
2013-07-25

Optical absorption spectroscopy

#77
20120295268
2012-11-22

Instrument and method for detecting analytes

#78
20120194818
2012-08-02

Gas Analyzer for Measuring the Mercury Content of a Gas

#79
20120006098
2012-01-12

Method And Device For Measuring The Concentration Of Substances In Gaseous Or Fluid Media Through Optical Spectroscopy Using Broadband Light Sources

#80
20110233406
2011-09-29

Multi-channel optical cell

#81
20100045980
2010-02-25

Spectrophotometer

#82
20090268204
2009-10-29

Optical absorption gas analyser

#83
20090177052
2009-07-09

Methods of using Raman spectral information in determining analyte concentrations

#84
20060119851
2006-06-08

Method and device for detecting gases by absorption spectroscopy