ClassID:

167893

G01N2021/458 - 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; Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods using interferential sensor, e.g. sensor fibre, possibly on optical waveguide

Recent Application in this class:
#1
20250244238
2025-07-31

Simultaneous Ultrasonic Vibration and Gas Sensing based on a Tunable Fiber Ring Laser

#2
20250155317
2025-05-15

Wind Tunnel Turbulent Airflow Laser Sensor System

#3
20250110379
2025-04-03

INTERFEROMETRIC PHOTONIC SENSOR

#4
20250102730
2025-03-27

HOLLOW-CORE PHOTONIC CRYSTAL FIBER BASED EDIBLE OIL SENSOR

#5
20250052688
2025-02-13

OPTOELECTRONIC DEVICE FOR THE DETECTION OF SUBSTANCES DISPERSED IN A FLUID

#6
20250052687
2025-02-13

WAVEGUIDE INTERFEROMETER SENSING LAYER COMPOSITIONS FOR FLUORO-CONTAINING SUBSTANCES AND RELATED METHODS

#7
20240385111
2024-11-21

MASK CHARACTERIZATION METHODS AND APPARATUSES

#8
20240288359
2024-08-29

SIMULTANEOUS DETECTION METHOD AND SYSTEM FOR DISSOLVED GAS AND PARTIAL DISCHARGE IN INSULATING OIL

#9
20240115128
2024-04-11

FREQUENCY-DOMAIN INTERFEROMETRIC BASED IMAGING SYSTEMS AND METHODS

#10
20240068941
2024-02-29

LABEL-FREE BACTERIAL DETECTION

#11
20230324296
2023-10-12

OBSERVATION DEVICE AND OBSERVATION METHOD

#12
20230194425
2023-06-22

Optical sensor of bio-molecules using interferometer

#13
20230152305
2023-05-18

APPARATUSES, SYSTEMS, AND METHODS FOR SAMPLE TESTING

#14
20230134264
2023-05-04

Optical Sensing Apparatus

#15
20230125056
2023-04-20

Simultaneous ultrasonic vibration and gas sensing based on a tunable fiber ring laser

#16
20230025577
2023-01-26

SYSTEM, METHOD AND SENSOR DEVICE FOR SENSING A CHANGE IN A CONCENTRATION OF MICRO-ORGANISMS

#17
20230003635
2023-01-05

PUMP-PROBE PHOTOTHERMAL SPECTROSCOPY HAVING PASSIVE PHASE DETECTION AND AN OPTICAL WAVEGUIDE

#18
20220381677
2022-12-01

Fourier spectrophotometer with polarization multiplexing optical system

#19
20220357660
2022-11-10

MASK CHARACTERIZATION METHODS AND APPARATUSES

#20
20220343271
2022-10-27

Systems and methods for chemical and biological authentication

#21
20220316331
2022-10-06

4D chemical fingerprint well monitoring

#22
20220229053
2022-07-21

INTERFEROMETER OPTIC MATERIAL AND RELATED METHODS

#23
20220171035
2022-06-02

OPTICAL INTERFEROMETRIC LIDAR SYSTEM TO CONTROL MAIN MEASUREMENT RANGE USING ACTIVE SELECTION OF REFERENCE OPTICAL PATH LENGTH

#24
20220146422
2022-05-12

INTERFEROMETRIC SENSORS FOR BIOCHEMICAL TESTING

#25
20210063308
2021-03-04

Sensor based on grating slit waveguide composite structure

#26
20210063307
2021-03-04

Device for detecting and/or determining the concentration of an analyte present in a tissue and a method and use of this device

#27
20210055473
2021-02-25

Sensor comprising a waveguide with optical resonator and sensing method

#28
20210007601
2021-01-14

Frequency-domain interferometric based imaging systems and methods

#29
20200408680
2020-12-31

OPTICAL IMMERSION REFRACTOMETER PROBE

#30
20200400883
2020-12-24

Photonic integrated circuit with encapsulated reference arm

#31
20200393240
2020-12-17

Apparatus and method for measurement of multilayer structures

#32
20200355678
2020-11-12

Micro-resonator and fiber taper sensor system

#33
20200326279
2020-10-15

IN-SITU NON-INVASIVE DEVICE FOR EARLY DETECTION OF FOULING IN AQUATIC SYSTEMS

#34
20190361034
2019-11-28

BINDING ASSAY

#35
20190353600
2019-11-21

Yarn sensor for optically sensing a yarn moved in the longitudinal direction of the yarn

#36
20190353588
2019-11-21

Photonic circuit for measuring a sample

#37
20190302016
2019-10-03

Optical sensor of bio-molecules using interferometer

#38
20190265169
2019-08-29

Colorimetric chemical sensor with enhanced color sensitivity

#39
20190250392
2019-08-15

Fiber splitter device for digital holographic imaging and interferometry and optical system comprising said fiber splitter device

#40
20190178795
2019-06-13

Robust interferometer and methods of using same

#41
20190162660
2019-05-30

Apparatus and method for measurement of multilayer structures

#42
20190011690
2019-01-10

Method for capturing and compensating ambient effects in a measuring microscope

#43
20180364391
2018-12-20

Three-dimensional waveguide sensors for sample analysis

#44
20180356340
2018-12-13

Method and device for on-line detection of salinity of seater

#45
20180356205
2018-12-13

Defect detection method and defect detection device

#46
20180284121
2018-10-04

Labeling using an optical thickness measurement of a biosensor

#47
20180275047
2018-09-27

Interferometric ellipsometry and method using conical refraction

#48
20180266947
2018-09-20

Monitoring probe

#49
20180231462
2018-08-16

Method for detecting a local change in refractive index of a dielectric medium located on the surface of an optical sensor

#50
20180164307
2018-06-14

Micro-resonator and fiber taper sensor system

#51
20180149588
2018-05-31

In-Situ Non-Invasive Device for Early Detection of Fouling in Aquatic Systems

#52
20180100798
2018-04-12

High sensitivity real-time bacterial monitor

#53
20180024127
2018-01-25

Optochemical detector and a method for fabricating an optochemical detector

#54
20180003706
2018-01-04

SYSTEM, METHOD, AND MODULE FOR BIOMARKER DETECTION

#55
20170315053
2017-11-02

REFRACTIVE INDEX MEASUREMENT METHOD, REFRACTIVE INDEX MEASUREMENT APPARATUS, AND OPTICAL ELEMENT MANUFACTURING METHOD

#56
20170269347
2017-09-21

Measuring microscope for measuring masks for lithographic methods and measuring method and calibration method therefor

#57
20170205581
2017-07-20

System and method associated with a photonic integrated circuit

#58
20170105618
2017-04-20

Frequency-domain interferometric based imaging systems and methods

#59
20170023472
2017-01-26

Apparatus and method for quantitive phase tomography through linear scanning with coherent and non-coherent detection

#60
20170023464
2017-01-26

Interferometric ellipsometry and method using conical refraction

#61
20160356708
2016-12-08

Optical measuring device having photonic chip with interferometer and phase adjuster set for minimizing signal from interference region

#62
20160327480
2016-11-10

Robust interferometer and methods of using same

#63
20160298952
2016-10-13

Parameter measurement of phase objects using tomographic imaging

#64
20160266110
2016-09-15

MICRO-RESONATOR AND FIBER TAPER SENSOR SYSTEM

#65
20160252450
2016-09-01

Fiber optic sensor for measurement of carbon dioxide

#66
20160231460
2016-08-11

Three-dimensional waveguide sensors for sample analysis

#67
20160187256
2016-06-30

Plasmonic interferometer sensor

#68
20160161403
2016-06-09

Refractive index distribution measuring method, refractive index distribution measuring apparatus, and optical element manufacturing method

#69
20160097715
2016-04-07

Integrated wide target range optical coupling-based mach-zehnder sensor

#70
20150177133
2015-06-25

Distribution of refractive index measurement by synthetic aperture tomography

#71
20150100278
2015-04-09

SYSTEMS AND METHODS FOR QUANTITATIVE PHASE IMAGING WITH PARTIALLY COHERENT ILLUMINATION

#72
20140311350
2014-10-23

System and method for sensing ammonia

#73
20140176957
2014-06-26

Photonics integrated interferometric system and method

#74
20130071061
2013-03-21

Optical circuit for sensing a biological entity in a fluid and method of configuring the same

#75
20120241601
2012-09-27

Methods and apparatus for detecting airborne molecular contaminants

#76
20120214707
2012-08-23

METHOD FOR DETECTION OF AN ANALYTE IN A FLUID SAMPLE

#77
20120194804
2012-08-02

SEMICONDUCTOR LASER BASED INTRA-CAVITY OPTICAL MICRO-FLUIDIC BIOSENSOR

#78
20120194803
2012-08-02

Optical sensing system and a method of determining a change in an effective refractive index of a resonator of an optical sensing system

#79
20120188553
2012-07-26

Fiber in-line Mach-Zehnder interferometer (MZI) device

#80
20120057173
2012-03-08

Sensor arrangement and detection method

#81
20120019833
2012-01-26

System for analysis of a fluid

#82
20110292398
2011-12-01

Integrated optical waveguide interferometric sensor

#83
20110261364
2011-10-27

Method and apparatus for an interferometric localized surface plasmon resonance (ILSPR) sensor

#84
20110149294
2011-06-23

INTEGRATED INTERFEROMETRIC APPARATUS AND BIO DETECTION SENSOR SYSTEM USING IT

#85
20110109897
2011-05-12

Measuring apparatus

#86
20100271634
2010-10-28

Interferometer and sensor based on bimodal optical waveguides, and detection method

#87
20100103429
2010-04-29

Integrated optical sensor

#88
20090147264
2009-06-11

LABEL-FREE, REAL-TIME DETECTION SYSTEM FOR MOLECULAR INTERACTION ANALYSIS

#89
20090125242
2009-05-14

Tomographic phase microscopy

#90
20090041405
2009-02-12

Ridge waveguide optical sensor incorporating a Bragg grating

#91
20080314138
2008-12-25

Optical wellbore fluid characteristic sensor

#92
20080084565
2008-04-10

Interferometer-based real time early fouling detection system and method

#93
20080049213
2008-02-28

Particle diameters measuring method and device

#94
20070269174
2007-11-22

Optical fiber polarimetric chemical sensor

#95
20060132790
2006-06-22

Optical coherence tomography with 3d coherence scanning

#96
20060126991
2006-06-15

In-fiber whitelight interferometry using long-period fiber grating

#97
20050131650
2005-06-16

Method and system for interaction analysis

#98
15617801
2019-07-23

Fiber optic bolometer