ClassID:

167835

G01N21/3504 - 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 using infra-red light for analysing gases, e.g. multi-gas analysis

Sub-classes:
Recent Application in this class:
#1
20260153497
2026-06-04

System and method for determining cellular respiration and nutrient metabolism of living cells or tissues

#2
20260146942
2026-05-28

HYDROGEN CONCENTRATION MEASUREMENT METHOD

#3
20260133125
2026-05-14

SYSTEM AND METHOD OF MONITORING PRECURSOR TANK

#4
20260133124
2026-05-14

Device for emission of thermal radiation and method of operating

#5
20260133123
2026-05-14

SYSTEMS AND METHODS FOR MONITORING A GAS STERILIZATION ENVIRONMENT

#6
20260133122
2026-05-14

Inverse Backscatter Absorption Gas Imaging

#7
20260130037
2026-05-07

SEMICONDUCTOR PACKAGE AND PHYSICAL-QUANTITY MEASUREMENT APPARATUS

#8
20260126377
2026-05-07

APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR GAS DETECTION

#9
20260126376
2026-05-07

ULTRAVIOLET DIFFERENTIAL OPTICAL ABSORPTION SPECTROSCOPY (UV-DOAS) AND OPEN PATH (OP) BASED LONG-DISTANCE DETECTION DEVICE FOR CHLORINE GAS, AND METHOD

#10
20260118262
2026-04-30

HIGH-PRECISION DOUBLE-RANGE INFRARED GAS SENSOR AND HIGH-PRECISION DOUBLE-RANGE INFRARED GAS ANALYSIS METHOD

#11
20260118259
2026-04-30

Method and Apparatus for Measuring Absorption Coefficient of a Medium

#12
20260110631
2026-04-23

PREDICTION OF PERCENTAGE LEVELS OF GASES THAT ARE UNDETECTABLE VIA OPTICAL ABSORPTION MEASUREMENTS

#13
20260086026
2026-03-26

BREATH SENSOR AND BREATH MEASUREMENT METHOD

#14
20260086025
2026-03-26

Flame Atomic Absorption Photometer

#15
20260085998
2026-03-26

FREE SPACE OPTICAL SPECTROMETER SYSTEMS AND METHODS FOR THEIR USE

#16
20260079103
2026-03-19

GAS LEAK EMISSION QUANTIFICATION WITH A GAS CLOUD IMAGER

#17
20260079099
2026-03-19

Multipass hydrogenated palladium optical cavities for detection of hydrogen

#18
20260071904
2026-03-12

GAS FLOW RATE ESTIMATION DEVICE, GAS FLOW RATE ESTIMATION METHOD, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING GAS FLOW RATE ESTIMATION PROGRAM, LEAKAGE GASDETECTION DEVICE, LEAKAGE GAS DETECTION METHOD, AND DETECTION DATA PROCESSING DEVICE

#19
20260063607
2026-03-05

REMOTE SENSING MULTIVARIATE / MULTIDIMENSIONAL AGRICULTURE ENHANCEMENT APPARATUS AND METHOD OF USE THEREOF

#20
20260063567
2026-03-05

SYSTEMS AND METHODS FOR MONITORING REMOTE INSTALLATIONS

#21
20260062806
2026-03-05

VAPOR CONCENTRATION SENSORS FOR PROCESS CHAMBERS

#22
20260056174
2026-02-26

CALIBRATION SYSTEM AND CALIBRATION METHOD FOR NDIR GAS SENSORS

#23
20260056121
2026-02-26

MEASUREMENT OF GASEOUS/VOLATILE HYDROCARBON CONCENTRATIONS

#24
20260056120
2026-02-26

MEASUREMENT OF MULTIPLE GAS CONCENTRATIONS

#25
20260041330
2026-02-12

SYSTEMS AND METHODS FOR SCREENING ASYMPTOMATIC VIRUS EMITTERS

#26
20260036515
2026-02-05

METHOD FOR OBTAINING A MODEL FOR A SPECTROMETER OR A SPECTROSCOPE AND METHOD FOR EVALUATING A SPECTRUM OF A GAS OR GAS MIXTURE

#27
20260029351
2026-01-29

SIGNAL FILTERING AND CONCENTRATION INVERSION METHOD FOR INFRARED LASER DETECTION

#28
20260029337
2026-01-29

SYSTEM AND METHOD FOR MEASURING COMPONENT CONCENTRATION

#29
20260029336
2026-01-29

Sight Glass Liquid and Vapor Recognition Device Using Light Reflection

#30
20260026746
2026-01-29

MULTI-SENSOR INTOXICATION DETECTION

#31
20250389650
2025-12-25

CAVITY ENHANCED GAS SENSOR AND SENSING METHODS

#32
20250389649
2025-12-25

Hydrocarbon Gas Detection System and Camera Arrangement Thereof

#33
20250389648
2025-12-25

NESTED MULTI-PASS AND RESONANT SPECTROSCOPY GAS CELL

#34
20250389643
2025-12-25

ANALYSIS DEVICE AND ANALYSIS METHOD

#35
20250380528
2025-12-11

INFRARED OPTICAL ELEMENT

#36
20250377294
2025-12-11

SYSTEMS, APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR GAS FLARE DISCRIMINATION

#37
20250369877
2025-12-04

THERMOMECHANICAL INFRARED DETECTOR WITH METAMATERIAL ABSORBER

#38
20250369871
2025-12-04

GAS DETECTION APPARATUS

#39
20250364788
2025-11-27

SEMICONDUCTOR LASER CHIP FOR GAS SENSOR

#40
20250362226
2025-11-27

GAS CONCENTRATION MEASURING DEVICE, GAS CONCENTRATION MEASURING METHOD, AND PROGRAM

#41
20250354901
2025-11-20

APPARATUSES, SYSTEMS, AND METHODS FOR DETERMINING GAS EMSSION RATE DETECTION SENSITIVITY AND GAS FLOW SPEED USING REMOTE GAS CONCENTRATION MEASUREMENTS

#42
20250347619
2025-11-13

Method for remote detection of gaseous substances in the atmosphere by the DIAL system with two lasers and a remote detector

#43
20250344303
2025-11-06

DRIVER CIRCUIT AND SMOKE DECTOR INCLUDING THE SAME

#44
20250341505
2025-11-06

PROCESS FOR CHECKING AND ADJUSTING A GAS SENSOR

#45
20250341459
2025-11-06

TAMM POLARITON EMITTERS AND METHODS OF MAKING AND USE THEREOF

#46
20250334508
2025-10-30

PHOTOTHERMAL EFFECT-BASED MID-INFRARED DETECTING APPARATUS

#47
20250334447
2025-10-30

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

#48
20250327752
2025-10-23

RAMAN SPECTROSCOPIC SYSTEM FOR DETECTING HUMAN BODY FLUID TRACES ON AN INTERFERING SUBSTRATE

#49
20250327746
2025-10-23

WINDOW OBSCURATION SENSORS FOR MOBILE GAS AND CHEMICAL IMAGING CAMERAS

#50
20250327745
2025-10-23

OPTICAL SPECTROSCOPY FOR CHARACTERIZING ATMOSPHERIC EMISSIONS

#51
20250327744
2025-10-23

Infrared absorption gas analyzer with dynamic pressure sampling

#52
20250327743
2025-10-23

METHOD AND SYSTEM FOR IDENTIFICATION AND QUANTIFICATION OF SILOXANES IN GASEOUS STREAM

#53
20250321184
2025-10-16

INFRARED GAS ANALYZER, AND INFRARED GAS ANALYSIS METHOD

#54
20250321165
2025-10-16

MULTI-BED TRAP FOR WATER ISOTOPE ANALYSIS

#55
20250314583
2025-10-09

SYSTEMS AND METHODS FOR DETERMINING ANALYTE CONCENTRATION IN AIR OVER AN AGRICULTURAL FIELD

#56
20250314582
2025-10-09

OPEN-PATH OPTICAL SENSORS FOR ANALYTE MEASUREMENTS

#57
20250305946
2025-10-02

IN-LINE GAS SENSOR AND SENSING METHODS

#58
20250305945
2025-10-02

MEASUREMENT APPARATUS, MEASUREMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

#59
20250305944
2025-10-02

OPTIMIZED MIRROR-BASED LIGHT FOCUSING FOR OPTICAL SENSOR ASSEMBLY

#60
20250297952
2025-09-25

Method for constructing infrared imaging dataset of gas leakage based on computational fluid dynamics

#61
20250297951
2025-09-25

GAS DETECTION DEVICE AND CONTROL METHOD FOR GAS DETECTION DEVICE

#62
20250297950
2025-09-25

DYNAMIC CORRECTION FOR LEAKAGE CURRENT AND BACKGROUND RADIATION

#63
20250297945
2025-09-25

EMBEDDED SENSOR RESPONSE LINEARIZATION METHOD

#64
20250290849
2025-09-18

SPECTROSCOPIC APPARATUS AND GAS DETECTION APPARATUS

#65
20250290846
2025-09-18

MULTI-PASS CELLS

#66
20250290818
2025-09-18

REPLACEMENT SIGNALING SEAL

#67
20250290781
2025-09-18

FLOW SENSOR AND PHOTOACOUSTIC DETECTOR

#68
20250283808
2025-09-11

GAS-MEASURING DEVICE WITH A SENSOR AND WITH MULTIPLE GAS INLETS AS WELL AS ACTUATION ARRANGEMENT, OPERATING METHOD, AND MEASURING METHOD FOR SUCH A GAS-MEASURING DEVICE

#69
20250277736
2025-09-04

Detection Apparatus with Optical Detector and Particle Detection Method

#70
20250272940
2025-08-28

WEARABLE DEVICE SUCH AS FOR GLUCOSE MEASUREMENT

#71
20250271357
2025-08-28

METHOD AND SYSTEM FOR MERCURY ANALYSIS

#72
20250271356
2025-08-28

METHOD AND APPARATUS FOR MEASURING A CONCENTRATION OF A GAS SPECIES

#73
20250271307
2025-08-28

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

#74
20250271300
2025-08-28

MOBILE GAS AND CHEMICAL IMAGING CAMERA

#75
20250261488
2025-08-14

SEMICONDUCTOR WAFER, SEMICONDUCTOR DEVICE, AND GAS CONCENTRATION MEASURING DEVICE

#76
20250258094
2025-08-14

DETECTION OF HYDROGEN OR SF6 LEAK WITH INDEX CONTRAST IMAGING

#77
20250258093
2025-08-14

TUBE FURNACE COMBUSTION ANALYZER SYSTEM

#78
20250258092
2025-08-14

MULTI-GAS SENSING AND DETECTION SYSTEM

#79
20250258091
2025-08-14

GAS DETECTING SYSTEM

#80
20250249405
2025-08-07

Method of selectively catalytically reducing dinitrogen oxide, a method of extracting carbon dioxide, a method of detecting carbon dioxide, an apparatus, and use

#81
20250244234
2025-07-31

DEVICE FOR MEASURING ELEMENTAL AND MOLECULAR PROPERTIES WITH HYBRID ELECTROMAGNETIC WAVES

#82
20250231104
2025-07-17

OPTICAL GAS SENSOR DEVICE, GAS DETECTION METHOD, AND STORAGE MEDIUM STORING PROGRAM

#83
20250224330
2025-07-10

UV-BASED, IN-SITU SOIL CARBON MEASUREMENT SYSTEM

#84
20250216327
2025-07-03

COMPACT INJECTION MOLDED OPTICAL MODULE FOR GAS SENSING

#85
20250214825
2025-07-03

SINGLE TANK CARBONATION FOR CARBONATED SOFT DRINK EQUIPMENT

#86
20250208108
2025-06-26

STEM RESPIRATION SYSTEM FOR PLANTS

#87
20250208031
2025-06-26

GAS DETECTION DEVICE AND REFRIGERANT SENSOR

#88
20250208028
2025-06-26

MULTIPLE PATH LENGTH OPTICAL CELL FOR TRACE GAS MEASUREMENT

#89
20250198976
2025-06-19

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

#90
20250189443
2025-06-12

SYSTEM AND METHOD FOR SIMULTANEOUS HIGH-SENSITIVITY MEASUREMENT OF METHANE AND ETHANE VIA LASER ABSORPTION SPECTROSCOPY IN AN OPEN-AIR CONFIGURATION

#91
20250189442
2025-06-12

SCAVENGED ANESTHETIC SENSOR AND METHOD FOR SENSING SCAVENGED ANESTHETICS IN AN AIRFLOW

#92
20250189441
2025-06-12

Device, system and method for optical gas analysis

#93
20250180472
2025-06-05

Optical Sensor and System

#94
20250172479
2025-05-29

GAS DETECTING DEVICE

#95
20250169698
2025-05-29

3D CAMERAS OR SENSORS INPUTTING TO MULTI-MODAL GENERATIVE ARTIFICIAL INTELLIGENCE MODELS TRAINED ON IMAGES OR VIDEOS

#96
20250155368
2025-05-15

IN-LINE GAS SENSOR AND SENSING METHODS

#97
20250137922
2025-05-01

NON-DISPERSIVE INFRARED SENSOR

#98
20250137921
2025-05-01

Per-frequency correction of spectroscopic interference

#99
20250137847
2025-05-01

DETECTOR

#100
20250133634
2025-04-24

THERMAL EMITTER, METHOD FOR OPERATING A THERMAL EMITTER AND MEMS GAS/FLUID SENSOR

#101
20250129952
2025-04-24

ROOM DISINFECTION SYSTEMS COMPRISING CONCENTRATED LIGHT SOURCES

#102
20250110047
2025-04-03

OPTICAL SPECTROSCOPY FOR CHARACTERIZING ATMOSPHERIC EMISSIONS

#103
20250110046
2025-04-03

SYSTEMS AND METHODS FOR MEASURING GAS USING LASER SPECTROSCOPY

#104
20250102427
2025-03-27

GAS SENSOR

#105
20250085218
2025-03-13

METHODS, APPARATUSES, AND SYSTEMS FOR DIAGNOSING MISALIGNMENT IN GAS DETECTING DEVICES

#106
20250076191
2025-03-06

ELECTROMAGNETIC WAVE MEASURING APPARATUS, METHOD, AND RECORDING MEDIUM

#107
20250076190
2025-03-06

DIFFERENTIAL MEASUREMENT OF IR ABSORPTION IN PLASMONIC MEMS SENSORS

#108
20250067663
2025-02-27

SOLID-STATE SPECTROMETER

#109
20250052707
2025-02-13

MONITORING SYSTEM WITH A GAS MEASURING DEVICE

#110
20250052671
2025-02-13

Method of Measuring a Methane Destruction and Removal Efficiency of an Elevated Flare

#111
20250049326
2025-02-13

Wearable device for differential measurement on pulse rate and blood flow

#112
20250048775
2025-02-06

CAPPED SEMICONDUCTOR BASED SENSOR AND METHOD FOR ITS FABRICATION

#113
20250044223
2025-02-06

CAPPED SEMICONDUCTOR BASED SENSOR AND METHOD FOR ITS FABRICATION

#114
20250043423
2025-02-06

VAPOR CONCENTRATION SENSORS FOR PROCESS CHAMBERS

#115
20250035545
2025-01-30

GAS SENSOR AND SENSING METHOD

#116
20250035544
2025-01-30

GAS ANALYSIS DEVICE, GAS ANALYSIS METHOD, AND PROGRAM FOR GAS ANALYSIS DEVICE

#117
20250027921
2025-01-23

GAS CONCENTRATION MEASUREMENT DEVICE

#118
20250027856
2025-01-23

Thermal Desorption Preconcentrator Adapted for Spectroscopic Gas Analysis

#119
20250020582
2025-01-16

OPTICAL GAS SENSOR DEVICE AND MANUFACTURING METHOD OF OPTICAL GAS SENSOR DEVICE

#120
20250017473
2025-01-16

WEARABLE DEVICE FOR DIFFERENTIAL MEASUREMENT ON PULSE RATE AND BLOOD FLOW

#121
20250017472
2025-01-16

MEASUREMENTS USING CAMERA SENSOR COUPLED TO A CHEMICAL DETECTION SYSTEM

#122
20250009233
2025-01-09

REMOTE SENSING SYSTEM WITH TIME-OF-FLIGHT SENSOR, ACTIVE ILLUMINATOR AND LIGHT SENSING SYSTEM

#123
20250009232
2025-01-09

TIME-OF-FLIGHT MEASUREMENT ON USER WITH CAMERAS AND POSITION SENSOR

#124
20250003934
2025-01-02

MULTI-COMPONENT GAS AND VAPOR MONITORING SENSOR

#125
20250003872
2025-01-02

RAPIDLY TUNEABLE DIODE LIDAR FOR METHANE DETECTION

#126
20250003869
2025-01-02

OPTICAL GAS SENSOR DEVICE

#127
20240420171
2024-12-19

SYSTEMS AND METHODS OF RECLAMATION OF THERMAL MANAGEMENT FLUIDS

#128
20240418639
2024-12-19

PROCESS AND APPARATUS FOR ANALYZING A GAS SAMPLE BY ANALYZING THE BEHAVIOR OF A SYSTEM

#129
20240418638
2024-12-19

MACHINE LEARNING DEVICE, EXHAUST GAS ANALYSIS DEVICE, MACHINE LEARNING METHOD, EXHAUST GAS ANALYSIS METHOD, MACHINE LEARNING PROGRAM, AND EXHAUST GAS ANALYSIS PROGRAM

#130
20240418637
2024-12-19

ANALYSIS DEVICE AND ANALYSIS METHOD

#131
20240407667
2024-12-12

SYSTEMS AND METHODS FOR SCREENING ASYMPTOMATIC VIRUS EMITTERS

#132
20240405148
2024-12-05

MONOLITHIC MULTI-WAVELENGTH OPTICAL DEVICES

#133
20240402014
2024-12-05

IN-SITU INFRA-RED ULTRA-VIOLET PHOTOMETER

#134
20240398237
2024-12-05

MEASUREMENTS USING CAMERA IMAGING TISSUE COMPRISING SKIN OR THE HAND

#135
20240389858
2024-11-28

ACTIVE REMOTE SENSING OF ATMOSPHERIC GASES OR SMOKE USING A TIME-OF-FLIGHT SENSOR

#136
20240385108
2024-11-21

MONITORING CONDITIONS AND HEALTH OF ARTISTIC WORKS

#137
20240385104
2024-11-21

GAS-SENSING APPARATUS

#138
20240377318
2024-11-14

Gas Measurement Apparatus

#139
20240377254
2024-11-14

ELECTRICALLY MODULATED LIGHT SOURCE

#140
20240362883
2024-10-31

Wearable device such as for glucose measurement

#141
20240359153
2024-10-31

METHOD AND SYSTEM FOR GENERATING INTERFERENCE SPECTRA FOR LOW DETECTION LIMITS USING REACTOR

#142
20240353323
2024-10-24

DIFFERENTIAL PATH LENGTH SENSING USING MONOLITHIC, DUAL-WAVELENGTH LIGHT EMITTING DIODE

#143
20240344978
2024-10-17

TERAHERTZ DETECTION DEVICE

#144
20240344977
2024-10-17

METHOD, APPARATUS AND SYSTEM FOR COMPACT OPTICAL GAS ABSORPTION MEASUREMENTS

#145
20240344976
2024-10-17

SYSTEM AND METHOD OF MONITORING PRECURSOR TANK

#146
20240328936
2024-10-03

APPARATUS, SYSTEMS AND METHODS FOR USE IN OPTICAL GAS ABSORPTION MEASUREMENTS

#147
20240322085
2024-09-26

Semiconductor wafer, semiconductor device, and gas concentration measuring device

#148
20240319153
2024-09-26

ULTRA-LIGHTWEIGHT, HANDHELD GAS LEAK DETECTION DEVICE

#149
20240319087
2024-09-26

Spectroscopic Device and Shape Measurement Device

#150
20240319086
2024-09-26

OPTICAL MEMBER AND GAS SENSOR

#151
20240319085
2024-09-26

Method and system for remote imaging explosive gases

#152
20240315592
2024-09-26

SYSTEM FOR DETECTION OF BIOMARKERS IN AIR EXHALED FROM PATIENT'S LUNGS, METHOD FOR DETECTION OF BIOMARKERS IN AIR EXHALED FROM PATIENT'S LUNGS AND SYSTEM FOR DETECTION OF GASES, ESPECIALLY BIOMARKER GASES

#153
20240310276
2024-09-19

OPTICAL CONCENTRATION MEASURING APPARATUS

#154
20240302271
2024-09-12

Portable, rechargeable soil respiration and carbon dioxide sensor drill

#155
20240302266
2024-09-12

ASSEMBLY FOR A MULTISPECTRAL LIGHT EMISSION, AND MULTISPECTRAL SENSOR EQUIPPED THEREWITH

#156
20240298384
2024-09-05

WINDOW HEATING APPARATUS

#157
20240295493
2024-09-05

OPTICAL PHYSICAL QUANTITY MEASURING APPARATUS

#158
20240293080
2024-09-05

SYSTEMS AND METHODS FOR CONFIRMATION OF INTOXICATION DETERMINATION

#159
20240293079
2024-09-05

MULTI-SENSOR INTOXICATION DETECTION

#160
20240288363
2024-08-29

PACKAGE FOR AN OPTICAL RADIATION DEVICE

#161
20240280480
2024-08-22

WINDOW OBSCURATION SENSORS FOR MOBILE GAS AND CHEMICAL IMAGING CAMERAS

#162
20240280479
2024-08-22

An FTIR-based Sensor System for Monitoring Gas, Vapor, or Fluid Emissions

#163
20240280478
2024-08-22

GAS SENSOR AND METHODS OF OPERATING THEREOF

#164
20240280445
2024-08-22

WHOLE VEHICLE FAULT DETECTION USING CENTRALLY LOCATED GAS ANALYSIS

#165
20240275128
2024-08-15

SPECTROSCOPIC DETECTION USING A TUNABLE FREQUENCY COMB

#166
20240272069
2024-08-15

Multi-spectral methods and systems for day and night sensing of greenhouse gas sources from space

#167
20240271994
2024-08-15

Handheld Gas and Vapor Analyzer

#168
20240268680
2024-08-15

Time-of-flight sensors co-registered with camera systems

#169
20240264077
2024-08-08

GAS SENSOR DEVICE AND METHOD FOR UPDATING BASELINE CALIBRATION PARAMETER

#170
20240264076
2024-08-08

SENSING SYSTEMS AND REFLECTIVE OPTICAL ELEMENT

#171
20240264075
2024-08-08

OPTICAL MEASURING DEVICE

#172
20240255420
2024-08-01

GAS CONCENTRATION FEATURE QUANTITY ESTIMATION DEVICE, GAS CONCENTRATION FEATURE QUANTITY ESTIMATION METHOD, PROGRAM, AND GAS CONCENTRATION FEATURE QUANTITY INFERENCE MODEL GENERATION DEVICE

#173
20240241045
2024-07-18

APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR GAS DETECTION

#174
20240241044
2024-07-18

System and method for detecting mercury and total organic carbon in burnt product

#175
20240230521
2024-07-11

METHOD FOR ENCLOSING REFERENCE GASES IN MEMS CELLS

#176
20240230417
2024-07-11

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

#177
20240225454
2024-07-11

CAMERA BASED SYSTEM WITH PROCESSING USING ARTIFICIAL INTELLIGENCE FOR DETECTING ANOMALOUS OCCURRENCES AND IMPROVING PERFORMANCE

#178
20240223719
2024-07-04

Mobile gas and chemical imaging camera

#179
20240221871
2024-07-04

METHOD AND DEVICE FOR MEASURING CONCENTRATION OF VOLATILE ORGANIC COMPOUNDS (VOCS), AND READABLE STORAGE MEDIUM

#180
20240219293
2024-07-04

Gas Sensor

#181
20240210306
2024-06-27

GAS DETECTION APPARATUS

#182
20240210244
2024-06-27

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

#183
20240201078
2024-06-20

GAS ANALYSIS DEVICE AND LASER LIGHT TRANSMISSION MECHANISM

#184
20240201057
2024-06-20

TOC ANALYZER

#185
20240192131
2024-06-13

Rapidly tuneable diode lidar

#186
20240180428
2024-06-06

Wearable devices comprising semiconductor diode light sources with improved signal-to-noise ratio

#187
20240175810
2024-05-30

Gas sensing device

#188
20240175791
2024-05-30

Method and system for detecting non-volatile and semi-volatile organic compounds in mid-ir spectrometry gas cell configurations

#189
20240175673
2024-05-30

PIEZOELECTRIC INTERFEROMETER

#190
20240175671
2024-05-30

INTERFEROMETER WITH ABSORBING LAYER

#191
20240170907
2024-05-23

METHOD AND LASER PULSE ENHANCEMENT APPARATUS FOR RESONANTLY ENHANCING PULSED LASER LIGHT FOR PRACTICAL APPLICATIONS AND SENSITIVE MEASUREMENTS

#192
20240159663
2024-05-16

GAS DETECTION DEVICE

#193
20240159662
2024-05-16

Optical device

#194
20240159624
2024-05-16

SYSTEMS AND METHODS FOR STATIONARY ENGINE EMISSIONS TESTING

#195
20240151700
2024-05-09

HYDROGEN SULFIDE IMAGING SYSTEM

#196
20240142374
2024-05-02

Gas Flow Chamber Device and Method of ATR Infrared Spectroscopy for Monitoring Chemical Reactions in Controlled Environments

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2024-05-02

GAS LEAK DETECTOR AND DETECTION METHODS

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20240133802
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METHOD FOR ENCLOSING REFERENCE GASES IN MEMS CELLS

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2024-04-25

CAMERA BASED SYSTEM WITH PROCESSING USING ARTIFICIAL INTELLIGENCE FOR DETECTING ANOMALOUS OCCURRENCES AND IMPROVING PERFORMANCE

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SENSING DEVICE FOR LIQUID STORAGE CONTAINERS

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2024-04-11

NDIR GAS MEASURING DEVICE FOR DETECTING PRESENCE OF GAS OTHER THAN MEASUREMENT TARGET GAS

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20240098214
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DUAL-BAND DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

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2024-03-21

GAS LEAK EMISSION QUANTIFICATION WITH A GAS CLOUD IMAGER

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2024-03-21

SYSTEM AND METHOD FOR MEASURING COMPONENT CONCENTRATION

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2024-03-21

Single tank carbonation for carbonated soft drink equipment

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20240085318
2024-03-14

FULLY COMPENSATED OPTICAL GAS SENSING SYSTEM AND APPARATUS

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2024-03-07

NON-DISPERSIVE INFRARED GAS SENSOR USING GAS-PERMEABLE POLYMER OPTICAL WAVEGUIDE AND MANUFACTURING METHOD

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2024-03-07

ESTIMATING GAS QUANTITY IN A PIXEL BASED ON SPECTRAL MATCHED FILTERING

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2024-02-22

GAS ANALYZING DEVICE

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2024-02-22

Omnidirectional measurement system for time-varying characteristic of atmospheric vapor radiation

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2024-02-22

MODERATE-TO-LOW GLOBAL WARMING POTENTIAL VALUE REFRIGERANT LEAK DETECTION

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2024-02-15

Multi-component gas and vapor monitoring sensor

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2024-02-15

Gas sensor

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2024-02-15

INFRARED LIGHT ABSORBENT BODY, AND GAS SENSOR PROVIDED WITH INFRARED LIGHT ABSORBENT BODY

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2024-02-08

GENERATING HIGH-RESOLUTION CONCENTRATION MAPS FOR ATMOSPHERIC GASES USING GEOGRAPHY-INFORMED MACHINE LEARNING

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LASER IMAGING OF GASES FOR CONCENTRATION AND LOCATION IDENTIFICATION

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2024-02-01

GAS DETECTION APPARATUS

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Method of selectively catalytically reducing dinitrogen oxide, a method of extracting carbon dioxide, a method of detecting carbon dioxide, an apparatus, and use

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SYSTEM AND METHOD FOR DETECTING PERACTIC ACID AND HYDROGEN PEROXIDE VAPOR

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2024-01-25

MODULAR LANDFILL GAS MEASUREMENT

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System and method for gas sensor that corrects for sensor poison level

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2024-01-11

System and method for on-board data analysis for multi-gas sensing

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2024-01-04

GAS IMAGING SYSTEM

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2024-01-04

Identifying objects using near-infrared sensors, cameras or time-of-flight detectors

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Air quality monitoring system and method

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2023-12-28

GAS ANALYSIS DEVICE AND GAS ANALYSIS METHOD

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2023-12-28

GAS ANALYSER APPARATUS AND METHOD

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2023-12-07

OPTICAL DETECTOR AND METHOD FOR DETERMINING AT LEAST ONE PROPERTY OF AT LEAST ONE SUBSTANCE

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2023-12-07

Mid-infrared gas sensor based on tapered sub-wavelength grating slot waveguide

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20230389153
2023-11-30

DRIVE CIRCUIT AND SMOKE DETECTION DEVICE COMPRISING THE DRIVE CIRCUIT

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2023-11-30

Artificial Intelligence (AI)-Based Security Systems for Monitoring and Securing Physical Locations

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Solid-state spectrometer

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OPTICAL SENSING MODULE

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Gas sensor

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2023-11-16

Gas cell and method of forming the same

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2023-11-16

GAS IMAGING SYSTEMS AND METHODS

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2023-11-16

Filter incidence narrow-band infrared spectrometer

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2023-11-09

Optical filter

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2023-11-09

Window obscuration sensors for mobile gas and chemical imaging cameras

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2023-11-02

Gas concentration measurement system

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2023-10-26

SENSOR ARRANGEMENT AND METHOD FOR DETERMINING A CO2 CONTENT IN A GIVEN ENVIRONMENT

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2023-10-19

OPTICAL MILLIMETER-WAVE OSCILLATOR DISCIPLINED BY ROTATIONAL SPECTROSCOPY

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2023-10-19

Encapsulating of photoacoustic detector

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2023-10-12

METHANE MONITORING AND DETECTION APPARATUS AND METHODS

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2023-10-12

GAS SENSOR SYSTEM

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2023-10-12

PORTABLE CO2 MEASURING DEVICE AND SYSTEM

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2023-10-12

Hollow waveguide for gas detection

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2023-10-05

Air quality monitoring system and method

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2023-10-05

COMBUSTION-ZONE CHEMICAL SENSING SYSTEM AND ASSOCIATED METHOD

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GAS SENSOR SYSTEM

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2023-09-21

GAS SENSOR

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2023-09-21

APPARATUS AND METHOD

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2023-09-21

Gas detection device

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2023-09-21

GAS DETECTION DEVICE AND GAS DETECTION METHOD

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FUSION BOND BASED WAFER-LEVEL-PACKAGE FOR MID-INFRARED GAS SENSOR SYSTEM

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2023-09-21

OPTIMIZED INFRARED LIGHT SOURCE FOR A GAS SENSOR, AND MANUFACTURING METHOD THEREOF

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2023-09-14

SENSOR SYSTEM

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GAS DETECTION IN AN ENCLOSED SPACE

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VISIBLE RANGE DETECTION SYSTEM

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Demultiplexing filter and method

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LASER HETERODYNE COMBUSTION-EFFICIENCY MONITOR AND ASSOCIATED METHODS

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2023-08-17

Terahertz wave detection device, terahertz wave detection method, and terahertz wave detection system

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Compact gas sensing device and thermostatic module thereof

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Use of gradient-index lenses for cavity enhanced absorption spectroscopy

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OPTICAL GAS IMAGING SYSTEMS AND METHOD COMPATIBLE WITH UNCOOLED THERMAL IMAGING CAMERAS

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Window obscuration sensors for mobile gas and chemical imaging cameras

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SENSING DEVICE FOR LIQUID STORAGE CONTAINERS

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Method for determining a gas concentration from a group of sensors

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GAS ANALYSIS APPARATUS AND GAS ANALYSIS METHOD

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DISSOLVED GAS SENSING SYSTEM AND METHOD

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High altitude laser optical sensor

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Virus sensing in exhaled breath by infrared spectroscopy

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Gas detection system and method

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2023-06-22

Monitoring gas impurities with total sulfur detection

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2023-06-22

GAS DETECTION DEVICE, GAS DETECTION METHOD, AND GAS DETECTION PROGRAM

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2023-06-22

High-speed tunable chemical composition detecting components and apparatuses

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Vibration correction methods and systems for gas detecting apparatuses

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2023-06-08

Short-wave infrared sensor for identifying based on water content

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Gas sensors using non-dispersive infrared materials

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2023-06-01

CONCENTRATION MEASUREMENT APPARATUS AND CONCENTRATION MEASUREMENT METHOD

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2023-06-01

Multi-gas sensors using non-dispersive infrared materials

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2023-06-01

GAS SENSORS USING NON-DISPERSIVE INFRARED (NDIR) MATERIALS

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2023-06-01

Electrically modulated light source, non-dispersive infrared spectrum detection system and method for detecting gas using the same

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2023-06-01

HIGH THROUGHPUT HIGH RESOLUTION GAS SORPTION SCREENING

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METHOD OF OPERATING A LIDAR SYSTEM FOR DETECTION OF GAS

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2023-05-25

Air quality monitoring system and method

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2023-05-25

Method for remote detection of gaseous substances in the atmosphere by the DIAL system with two lasers and a remote detector

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20230152220
2023-05-18

RAPID, SENSITIVE HYDROGEN DETECTOR WITH FLOW PATH DIFFERENCE COMPENSATION

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2023-05-11

DRONE FOR MEASURING DATA REPRESENTATIVE OF AMOUNTS OF AT LEAST TWO GASES PRESENT IN THE ATMOSPHERE AWAY FROM THE GROUND AND ASSOCIATED METHOD

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20230145009
2023-05-11

Specific component detection method, determination method, and apparatuses using these methods

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20230124208
2023-04-20

Concentration measuring method, and concentration measuring device

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20230120444
2023-04-20

Gas detection using differential path length measurement

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20230117008
2023-04-20

Gas sensor with long absorption path length