ClassID:

167839

G01N2021/3531 - 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 without instrumental source, i.e. radiometric

Recent Application in this class:
#1
20260079103
2026-03-19

GAS LEAK EMISSION QUANTIFICATION WITH A GAS CLOUD IMAGER

#2
20260063567
2026-03-05

SYSTEMS AND METHODS FOR MONITORING REMOTE INSTALLATIONS

#3
20250271307
2025-08-28

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

#4
20250271300
2025-08-28

MOBILE GAS AND CHEMICAL IMAGING CAMERA

#5
20250052671
2025-02-13

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

#6
20240230417
2024-07-11

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

#7
20240223719
2024-07-04

Mobile gas and chemical imaging camera

#8
20240151700
2024-05-09

HYDROGEN SULFIDE IMAGING SYSTEM

#9
20240142335
2024-05-02

GAS LEAK DETECTOR AND DETECTION METHODS

#10
20240098214
2024-03-21

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

#11
20240003807
2024-01-04

GAS IMAGING SYSTEM

#12
20230258559
2023-08-17

LASER HETERODYNE COMBUSTION-EFFICIENCY MONITOR AND ASSOCIATED METHODS

#13
20230003640
2023-01-05

GAS LEAK EMISSION QUANTIFICATION WITH A GAS CLOUD IMAGER

#14
20220381639
2022-12-01

SYSTEMS AND METHODS FOR MONITORING REMOTE INSTALLATIONS

#15
20220229033
2022-07-21

Hydrogen sulfide imaging system

#16
20220228922
2022-07-21

Divided-aperture infra-red spectral imaging system

#17
20220182560
2022-06-09

Mobile gas and chemical imaging camera

#18
20210352226
2021-11-11

Dual-band divided-aperture infra-red spectral imaging system

#19
20210255113
2021-08-19

Systems and methods for monitoring remote installations

#20
20210181099
2021-06-17

Gas imaging system

#21
20210123810
2021-04-29

Divided-aperture infra-red spectral imaging system

#22
20210102840
2021-04-08

Methods for classification of a gas compound in a gas leak

#23
20210037197
2021-02-04

Mobile gas and chemical imaging camera

#24
20200326276
2020-10-15

Dynamic determination of radiometric values using multiple band sensor array systems and methods

#25
20200319097
2020-10-08

Infrared sensor array with sensors configured for different spectral responses

#26
20200264149
2020-08-20

Hydrogen sulfide imaging system

#27
20200150031
2020-05-14

Method and apparatus for sulfur fire-watch and detection

#28
20200124525
2020-04-23

Gas leak emission quantification with a gas cloud imager

#29
20200116583
2020-04-16

Gas quantification systems and methods

#30
20200088586
2020-03-19

Divided-aperture infra-red spectral imaging system

#31
20200011789
2020-01-09

Wavelength band based passive infrared gas imaging

#32
20190373185
2019-12-05

Dual-band divided-aperture infra-red spectral imaging system

#33
20190302013
2019-10-03

Multi-spectral gas quantification and differentiation method for optical gas imaging camera

#34
20190285477
2019-09-19

Infrared sensor array with alternating filters

#35
20190273875
2019-09-05

Mobile gas and chemical imaging camera

#36
20190195725
2019-06-27

Hydrocarbon leak imaging and quantification sensor

#37
20190187019
2019-06-20

Method of indicating gas movement in a scene

#38
20190154576
2019-05-23

Hyperspectral infrared sounders deployable as a constellation for low orbit MWIR atmospheric measurements

#39
20190137390
2019-05-09

Scanning IR sensor for gas safety and emissions monitoring

#40
20190128800
2019-05-02

Infrared optical gas-measuring device

#41
20190003984
2019-01-03

Systems and methods for monitoring remote installations

#42
20180364185
2018-12-20

Gas concentration-thickness product measurement device, gas concentration-thickness product measurement method, and computer-readable recording medium having gas concentration-thickness product measurement program recorded thereon

#43
20180335380
2018-11-22

Optical gas imaging systems and methods

#44
20180299326
2018-10-18

Infrared detection system

#45
20180276469
2018-09-27

Uncooled gas imaging camera

#46
20180188163
2018-07-05

Gas imaging system

#47
20180088204
2018-03-29

Mobile devices for tracking a radiation disk light source and methods using same

#48
20180077363
2018-03-15

Mobile gas and chemical imaging camera

#49
20180011009
2018-01-11

Wavelength band based passive infrared gas imaging

#50
20170370797
2017-12-28

Remote sensing of natural gas leaks

#51
20170363541
2017-12-21

Quantifying gas in passive optical gas imaging

#52
20170336281
2017-11-23

Hydrocarbon leak imaging and quantification sensor

#53
20170322150
2017-11-09

Optical detection device

#54
20170191873
2017-07-06

Fabry-perot interferometer based satellite detection of atmospheric trace gases

#55
20170167972
2017-06-15

Infrared detection and imaging device with no moving parts

#56
20170039716
2017-02-09

Methods and systems for detecting a chemical species

#57
20160349228
2016-12-01

Hydrogen sulfide imaging system

#58
20160255284
2016-09-01

Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth

#59
20160131576
2016-05-12

Infrared detection and imaging device with no moving parts

#60
20160097713
2016-04-07

Gas leak emission quantification with a gas cloud imager

#61
20150373285
2015-12-24

Methods for calibrating a multiple detector system

#62
20150371386
2015-12-24

Methods and systems for detecting a chemical species

#63
20150369693
2015-12-24

Systems for detecting a chemical species and use thereof

#64
20150323449
2015-11-12

Systems and methods for detecting gas leaks

#65
20150316473
2015-11-05

Mobile gas and chemical imaging camera

#66
20150136982
2015-05-21

Divided-aperture infra-red spectral imaging system

#67
20150006018
2015-01-01

Detecting operating mode of hybrid vehicles

#68
20140160278
2014-06-12

Thermography camera tuned to detect absorption of infrared radiation in a selected spectral bandwidth

#69
20120273680
2012-11-01

Chemical leak inspection system

#70
20120188548
2012-07-26

Gas filter correlation radiometry method and system using a dissimilar gas to detect a target gas

#71
20110261359
2011-10-27

Gas monitoring device, combustion state monitoring device, secular change monitoring device, and impurity concentration monitoring device

#72
20100322471
2010-12-23

Motion invariant generalized hyperspectral targeting and identification methodology and apparatus therefor

#73
20100278441
2010-11-04

Differential wavelength imaging method and system for detection and identification of concealed materials

#74
20100231906
2010-09-16

Method and device for measuring emissions of gaseous substances to the atmosphere using scattered sunlight spectroscopy

#75
20100211333
2010-08-19

Leak Detection and Identification System

#76
20100202683
2010-08-12

Optimized imaging system for collection of high resolution imagery

#77
20100145659
2010-06-10

Spectral signal detection system

#78
20100102232
2010-04-29

Atmospheric gas detection apparatus and method

#79
20100078561
2010-04-01

System and method for detecting, tracking and identifying a gas plume

#80
20090105564
2009-04-23

LIVING BODY COMPONENT MEASURING APPARATUS CAPABLE OF PRECISELY AND NON-INVASIVELY MEASURING LIVING BODY COMPONENT

#81
20080283753
2008-11-20

IR sensor, especially a COsensor

#82
20080231719
2008-09-25

Thermography camera configured for leak detection

#83
20080116377
2008-05-22

Method and System for Passive Remote Exhaust Emission Measurement

#84
20080097183
2008-04-24

PASSIVE IN VIVO SUBSTANCE SPECTROSCOPY

#85
20070158593
2007-07-12

Infrared tag and track technique

#86
20070057188
2007-03-15

Laser desorption and thermal emission spectroscopy for chemical analysis of cryogenic surfaces

#87
20060286423
2006-12-21

Gas Composition monitoring arrangement

#88
20060237657
2006-10-26

Real-time UV spectroscopy for the quantification gaseous toxins utilizing open-path or closed multipass white cells

#89
20060132780
2006-06-22

System and method for remote sensing and/or analyzing spectral properties of targets and/or chemical species for detection and identification thereof

#90
20060091310
2006-05-04

Methods for performing inspections and detecting chemical leaks using an infrared camera system

#91
20060006335
2006-01-12

Method for detecting and managing nematode population

#92
20060000219
2006-01-05

Apparatus for observing combustion conditions in a gas turbine engine