ClassID:

167863

G01N2021/399 - page 2 - 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 tunable lasers; Type of laser source Diode laser

Recent Application in this class:
#301
20120283961
2012-11-08

Method and apparatus for detecting a gas concentration with reduced pressure dependency

#302
20120281220
2012-11-08

Actuation and evaluation circuit, measuring device and method for measuring the concentration of a gas

#303
20120266655
2012-10-25

Photoacoustic gas sensor with a helmholtz cell

#304
20120241621
2012-09-27

Standoff explosives detection

#305
20120236893
2012-09-20

Semiconductor laser mounting for improved frequency stability

#306
20120228144
2012-09-13

High-purity fluorine gas, the production and use thereof, and a method for monitoring impurities in a fluorine gas

#307
20120212744
2012-08-23

Laser gas analyzer

#308
20120194804
2012-08-02

SEMICONDUCTOR LASER BASED INTRA-CAVITY OPTICAL MICRO-FLUIDIC BIOSENSOR

#309
20120194785
2012-08-02

Method and apparatus for measuring molecular composition

#310
20120185179
2012-07-19

Reactive gas detection in complex backgrounds

#311
20120170043
2012-07-05

Sensitive and Compact Sensor Employing a Visible Diode Laser and A High Finesse Optical Cavity for Trace Gas Detection (NO2)

#312
20120156802
2012-06-21

Swept-frequency semiconductor laser coupled to microfabricated biomolecular sensor and methods related thereto

#313
20120154813
2012-06-21

System and method for real-time measurement of equivalence ratio of gas fuel mixture

#314
20120120397
2012-05-17

Hybrid gas analyzer with thermally insulated flow cell

#315
20120113426
2012-05-10

Method and apparatus for trace gas detection using integrated wavelength modulated spectra across multiple lines

#316
20120099109
2012-04-26

Dynamic reconstruction of a calibration state of an absorption spectrometer

#317
20120064635
2012-03-15

Energy meter for mixed streams of combustible compounds

#318
20120062896
2012-03-15

Systems and methods for permeability rate testing of barrier films

#319
20120062895
2012-03-15

Method and apparatus for the detection of trace gas species using multiple line integrated absorption spectroscopy

#320
20120033220
2012-02-09

QCL spectroscopy system and applications therefor

#321
20120021526
2012-01-26

Method for isotopic analysis of water in bodily fluids

#322
20120004861
2012-01-05

Energy flow measurement in gas pipelines

#323
20120002191
2012-01-05

Standoff spectroscopy using a conditioned target

#324
20110313670
2011-12-22

METHOD AND APPARATUS FOR SPECIATING HYDROCARBONS

#325
20110308391
2011-12-22

Method and apparatus for liberating gases from drilling fluid

#326
20110304844
2011-12-15

Gas sensor and process for measuring moisture and carbon dioxide concentration

#327
20110302992
2011-12-15

Apparatus for measurement of gas concentrations in breath

#328
20110299084
2011-12-08

Validation and correction of spectrometer performance using a validation cell

#329
20110299076
2011-12-08

Spectrometer with validation cell

#330
20110242659
2011-10-06

Multi-pass optical cell with actuator for actuating a reflective surface

#331
20110216793
2011-09-08

Laser diode structure with reduced interference signals

#332
20110188039
2011-08-04

PARTICLE DETECTOR

#333
20110184624
2011-07-28

GAS DETECTION DEVICE

#334
20110181879
2011-07-28

Method for detection of gases by laser spectroscopy, and gas sensor

#335
20110180729
2011-07-28

Broadly tunable optical parametric oscillator

#336
20110165315
2011-07-07

Flux monitor

#337
20110154806
2011-06-30

Systems and apparatus relating to the monitoring and/or controlling of selective catalytic reduction processes

#338
20110149288
2011-06-23

Gas mixture measurement system and methods therefor

#339
20110134431
2011-06-09

Non-destructive inspection device for oxygen concentration in bag-shaped container

#340
20110130973
2011-06-02

Device and method of examining absorption of infrared radiation

#341
20110110390
2011-05-12

Laser diode structure with integrated temperature-controlled beam shaping element and method for gas detection by means of a laser diode structure

#342
20110096332
2011-04-28

METHOD AND DEVICE FOR GAS ANALYSIS USING AN INTERFEROMETRIC LASER

#343
20110093215
2011-04-21

Reactive gas detection in complex backgrounds

#344
20110082649
2011-04-07

STAND-OFF ACTIVE DETECTION OF CHEMICAL SUBSTANCES

#345
20110038507
2011-02-17

Device and method for quantification of gases in plumes by remote sensing

#346
20110032516
2011-02-10

Optical absorbance measurements with self-calibration and extended dynamic range

#347
20100246610
2010-09-30

Mid-IR laser instrument for analyzing a gaseous sample and method for using the same

#348
20100242572
2010-09-30

WAVELENGTH MODULATION SPECTROSCOPY FOR SIMULTANEOUS MEASUREMENT OF TWO OR MORE GAS INGREDIENTS

#349
20100220755
2010-09-02

SPECTRALLY TUNABLER LASER MODULE

#350
20100201989
2010-08-12

Reactive gas detection in complex backgrounds

#351
20100140478
2010-06-10

Gas detector

#352
20100110438
2010-05-06

Hybrid gas analyzer

#353
20100107729
2010-05-06

Energy flow measurement in gas pipelines

#354
20100091278
2010-04-15

Wavelength-modulation spectroscopy method and apparatus

#355
20100085546
2010-04-08

LITHOGRAPHIC APPARATUS AND HUMIDITY MEASUREMENT SYSTEM

#356
20100067014
2010-03-18

Portal

#357
20100067013
2010-03-18

Multi mode fibre perturber

#358
20100050760
2010-03-04

Methods and apparatus for decreasing a density of a downhole fluid

#359
20100041969
2010-02-18

MEASURING DEVICE AND METHOD FOR OPTICALLY DETERMINING THE CONCENTRATION OF BLOOD SUGAR AND/OR LACTATE IN BIOLOGICAL SYSTEMS

#360
20100032570
2010-02-11

Control and optimization of process for making ethylene oxide

#361
20100028819
2010-02-04

Combustion gas analysis

#362
20100012843
2010-01-21

Compact near-IR and mid-IR cavity ring down spectroscopy device

#363
20100002235
2010-01-07

LASER DIODE ARRANGEMENTS AND METHOD FOR GAS DETECTION

#364
20090303487
2009-12-10

Tunable photonic cavities for in-situ spectroscopic trace gas detection

#365
20090303486
2009-12-10

LIGHT SOURCE AND GAS MEASURING DEVICE

#366
20090201507
2009-08-13

Wavelength modulation spectroscopy method and system

#367
20090185175
2009-07-23

Cavity ring down system having a common input/output port

#368
20090086206
2009-04-02

Tunable semiconductor laser device, manufacturing method therefor, and gas detector using therewith

#369
20090066956
2009-03-12

Method and apparatus for enhancing the accuracy of CRDS measurements

#370
20090059234
2009-03-05

Hollow waveguide cavity ringdown spectroscopy

#371
20090051898
2009-02-26

Non-invasive probe for measuring body components and a non-invasive body component measurement system including the non-invasive probe

#372
20090028209
2009-01-29

Energy meter for mixed streams of combustible compounds

#373
20090014670
2009-01-15

Optical cavity system having an orthogonal input

#374
20080315102
2008-12-25

Infrared spectrometer

#375
20080304066
2008-12-11

Method for measuring the concentration of a gas component in a measuring gas

#376
20080288182
2008-11-20

Energy flow measurement in gas pipelines

#377
20080275355
2008-11-06

Method For Diagnosing An Infectioin Condition

#378
20080255769
2008-10-16

Reactive gas detection in complex backgrounds

#379
20080232422
2008-09-25

Laser Radiation Source

#380
20080231857
2008-09-25

Sensor system and sampling cell assembly for use with sensor system

#381
20080225296
2008-09-18

Pressure-invariant trace gas detection

#382
20080225285
2008-09-18

Device for and Method of Measurement of Chemical Agents Quantity in Gas Medium

#383
20080225273
2008-09-18

Mobile remote detection of fluids by a laser

#384
20080204720
2008-08-28

Two line gas spectroscopy calibration

#385
20080198364
2008-08-21

Gas sensor

#386
20080198027
2008-08-21

Infrared Laser Based Alarm

#387
20080144677
2008-06-19

Broadly tunable single-mode quantum cascade laser sources and sensors

#388
20080135760
2008-06-12

System and method for measuring water vapor in natural gas

#389
20080128622
2008-06-05

Infrared spectrometer

#390
20080123712
2008-05-29

Measuring water vapor in high purity gases

#391
20080111993
2008-05-15

Compact near-IR and mid-IR cavity ring down spectroscopy device

#392
20080111077
2008-05-15

Compact near-IR and mid-IR cavity ring down spectroscopy device

#393
20080088821
2008-04-17

Fuel cell and product of combustion humidity sensor

#394
20080074645
2008-03-27

Method for the monitoring and control of a process

#395
20080013887
2008-01-17

Method and apparatus for the monitoring and control of a process

#396
20080013883
2008-01-17

Method and apparatus for the monitoring and control of a process

#397
20070295908
2007-12-27

Method for measurement of gas concentration with modulated light at two absorption maxima

#398
20070291271
2007-12-20

Optical gas monitor

#399
20070263956
2007-11-15

Method And Apparatus For The Monitoring And Control Of A Process

#400
20070246512
2007-10-25

USE OF TUNABLE DIODE LASERS FOR CONTROLLING A BRAZING PROCESSES

#401
20070242720
2007-10-18

Multi-pass optical cell with actuator for actuating a reflective surface

#402
20070210254
2007-09-13

Optical and laser differential absorption remote detection of TATP peroxide based explosives

#403
20070145275
2007-06-28

Method for detecting a gas species using a super tube waveguide

#404
20070133001
2007-06-14

Laser sensor having a block ring activity

#405
20070081162
2007-04-12

Method And Apparatus For Determining Marker Gas Concentration Using An Internal Calibrating Gas

#406
20070064748
2007-03-22

Mid-IR instrument for analyzing a gaseous sample and method for using the same

#407
20070064230
2007-03-22

Broadband laser spectroscopy

#408
20070045543
2007-03-01

System and method for detecting water vapor within natural gas

#409
20070045542
2007-03-01

Fenceline monitoring of air contaminants

#410
20070034802
2007-02-15

System and method for detecting water vapor within natural gas

#411
20060268260
2006-11-30

Cell analysis using laser with external cavity

#412
20060262316
2006-11-23

System and method for interferometric laser photoacoustic spectroscopy

#413
20060256329
2006-11-16

Post dispersion spatially filtered Raman spectrometer

#414
20060192967
2006-08-31

Method and apparatus for trace gas detection

#415
20060180763
2006-08-17

Gas detector that uses infrared light and method of detecting gas concentration

#416
20060133714
2006-06-22

Method and apparatus for the monitoring and control of combustion

#417
20060132782
2006-06-22

Polarization controlling fiber probe for semiconductor source spectroscopy system

#418
20060114464
2006-06-01

Mobile remote detection device and remote detection method for methane gas accumulations

#419
20060114447
2006-06-01

Laser radar apparatus having multiple output wavelengths

#420
20060098202
2006-05-11

Gas detection method and gas detector device

#421
20060072633
2006-04-06

Semiconductor spectroscopy system

#422
20060072632
2006-04-06

Semiconductor laser with tilted fabry-perot tunable filter

#423
20060066851
2006-03-30

Computer-implemented methods for organizing image data produced by resonant Mie scattering of light from microparticles and resulting data structures

#424
20050286054
2005-12-29

Oxygen sensor for aircraft fuel inerting systems

#425
20050254056
2005-11-17

System and method for controlling the light source of a cavity ringdown spectrometer

#426
20050206903
2005-09-22

Wavelength control for cavity ringdown spectrometer

#427
20050157303
2005-07-21

Semiconductor diode laser spectrometer arrangement and method

#428
20050140979
2005-06-30

Wavelength modulation spectroscopy method

#429
20050046852
2005-03-03

Wavelength modulation spectroscopy method and system

#430
20050040337
2005-02-24

Tunable laser fluid sensor

#431
20050030628
2005-02-10

Very low cost narrow band infrared sensor

#432
18786245
2025-06-24

Calibration for tuneable diode lidar gas detection

#433
15933393
2019-05-14

Gas analyzer

#434
15835903
2020-08-11

Trace moisture analyzer instrument, gas sampling and analyzing system, and method of detecting trace moisture levels in a gas

#435
15275172
2018-02-27

Active multi-spectral sensor