ClassID:

167731

G01N2021/157 - 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; Arrangements or apparatus for facilitating the optical investigation; Preventing contamination of the components of the optical system or obstruction of the light path; Monitoring cleanness of window, lens, or other parts Monitoring by optical means

Recent Application in this class:
#1
20260110623
2026-04-23

LOCAL GAS PATH DRIVEN PASSIVE PURGE FOR OPTICAL PROBE

#2
20260009810
2026-01-08

REAL-TIME CUVETTE MONITORING

#3
20250110030
2025-04-03

Serviceable Dust Filter for Optical Based Gaseous Sensors

#4
20240125691
2024-04-18

METHOD OF MEASURING BIOLOGICAL INFORMATION, AND MEASURING SYSTEM

#5
20230077495
2023-03-16

System for illuminating and viewing recessed angled surfaces

#6
20220404266
2022-12-22

Window contamination sensor

#7
20220268625
2022-08-25

Self-checking photoelectric sensor and method of operation

#8
20220176497
2022-06-09

Sensing arrangement for monitoring contamination of cover slide on laser processing head

#9
20220091008
2022-03-24

Maintenance method of gas detecting device

#10
20220082471
2022-03-17

Determining the transmission quality of an optical unit in a camera system

#11
20210381860
2021-12-09

Measurement apparatus and method

#12
20210337091
2021-10-28

System for illuminating and viewing recessed angled surfaces

#13
20210325316
2021-10-21

Sensor with a cleaning device

#14
20210148807
2021-05-20

Laser sensor module with indication of readiness for use

#15
20210131962
2021-05-06

Methods and systems for assessing flow cell cleanliness

#16
20210131942
2021-05-06

Flow cytometer for detecting types, volume, and concentration of cells

#17
20210096060
2021-04-01

Compact and secure system and method for detecting particles in fluid

#18
20200359637
2020-11-19

Device and arrangement for optically inspecting articles in the fish and meat processing industry

#19
20200348222
2020-11-05

Particle detection methods and systems for practicing same

#20
20200337234
2020-10-29

Method and apparatus for sensing crop material in a harvester

#21
20200309693
2020-10-01

Methods and systems for assessing flow cell cleanliness

#22
20200173910
2020-06-04

Vial inspection method and apparatus

#23
20200158621
2020-05-21

Methods for detecting events in a flow cytometer

#24
20200018689
2020-01-16

EVALUATING ASSAYS WHICH OPTICAL INHOMOGENEITIES

#25
20190256054
2019-08-22

Camera with cleaning system

#26
20190245485
2019-08-08

Optical Soiling Measurement Device for Photovoltaic Arrays

#27
20190120690
2019-04-25

Analysis system and optical element replacement timing determination method

#28
20190086264
2019-03-21

Colorimetric sensor device and image formation apparatus

#29
20190019388
2019-01-17

System and method to identify obscuration fault in a flame detector

#30
20190003952
2019-01-03

Methods for detecting events in a flow cytometer

#31
20180372607
2018-12-27

Nephelometric turbidimeter and method for controlling the humidity of venting air in a nephelometric turbidimeter

#32
20180350090
2018-12-06

Sensing light through a surface with a residue

#33
20180340888
2018-11-29

Methods and systems for assessing flow cell cleanliness

#34
20180331653
2018-11-15

Optical soiling measurement device for photovoltaic arrays

#35
20180217054
2018-08-02

Concentration measurement device

#36
20180080864
2018-03-22

Methods and systems for maintaining optical transparency during particle image acquisition

#37
20180059016
2018-03-01

Method for detection of the contamination of a sample cuvette of a nephelometric turbidimeter

#38
20180052034
2018-02-22

Method and device for monitoring an oil level in a machine

#39
20170356834
2017-12-14

METHOD FOR QUANTITATIVELY AND QUALITATIVELY DETECTING PARTICLES IN LIQUID

#40
20170176317
2017-06-22

Methods for detecting events in a flow cytometer

#41
20170108428
2017-04-20

Methods and systems for maintaining optical transparency during particle image acquisition

#42
20170038251
2017-02-09

Flame sensing

#43
20160231240
2016-08-11

Nephelometric turbidimeter and method for detection of the contamination of a sample cuvette of a nephelometric turbidimeter

#44
20160216200
2016-07-28

Method for automatic performance diagnosis and calibration of a photometric particle analyzer

#45
20160113067
2016-04-21

Detection and correction of window moisture condensation

#46
20150147230
2015-05-28

Automatic analysis apparatus

#47
20150103345
2015-04-16

Apparatus for measuring the scattered light and method of testing a reception optics

#48
20140246611
2014-09-04

Soiling check of the window of a measuring apparatus

#49
20140151538
2014-06-05

Fouling layer detection on an environmental sensor

#50
20140116120
2014-05-01

Systems and methods for cleaning an inline optical fluid analyzer

#51
20140051187
2014-02-20

Concurrently evaluating assays with optical inhomogeneities

#52
20140005952
2014-01-02

Automated analyzer

#53
20130271753
2013-10-17

Soiling check of the window of a measuring apparatus for checking sheet material

#54
20130070248
2013-03-21

Image forming apparatus having optical sensor system, optical sensor system having detection modules, and method thereof

#55
20130052085
2013-02-28

MICROFLUIDIC SYSTEM COMPRISING A LIGHT EMITTING DEVICE

#56
20130003048
2013-01-03

Fouling detection setup and method to detect fouling

#57
20120038925
2012-02-16

Method for examining liquids and apparatus therefor

#58
20110253917
2011-10-20

Optical module having a multifocal optical system with an additional optical element for covering a far range and a near range in one image

#59
20100277727
2010-11-04

Method for detecting contaminants

#60
20100252546
2010-10-07

METHOD FOR OPERATING AN IGNITION DEVICE

#61
20100101437
2010-04-29

PRINTING MACHINE

#62
20090303488
2009-12-10

Apparatus and method for detection of a film on a surface

#63
20090015824
2009-01-15

Optical multiwavelength window contamination monitor for optical control sensors and systems

#64
20080243411
2008-10-02

Method for monitoring the optical transmissibility through an observation window and device for cleaning an observation window

#65
20080211679
2008-09-04

Wiper control method and wiper control device

#66
20080100826
2008-05-01

Devices For Monitoring Particulate Accumulation On A Filter And Related Methods

#67
20080079951
2008-04-03

Detection apparatus, detection method, and optically transparent member

#68
20070182816
2007-08-09

Vehicle imaging system with windshield condition determination

#69
20070138393
2007-06-21

Sensor for monitoring the immediate vicinity of a motor vehicle

#70
20070091303
2007-04-26

Device for detecting contamination of lens in exposure device

#71
20070071448
2007-03-29

Dynamic range measurement and calculation of optical keyless entry sensor

#72
20070000889
2007-01-04

METHOD AND DEVICE FOR DETECTING CONTAMINANT ON CONDENSER LENS IN LASER PROCESSING MACHINE

#73
20060262309
2006-11-23

Interchangeable tip-open cell fluorometer

#74
20060192968
2006-08-31

Optical assembly

#75
20060186323
2006-08-24

Highly reliable window and windshield fog-rain detector

#76
20060060787
2006-03-23

Carbonate scale detector

#77
20060012783
2006-01-19

Monitoring an optical element of a processing head of a machine for thermal processing of a workpiece

#78
20050185176
2005-08-25

Determining an analyte by multiple measurements through a cuvette

#79
20050168741
2005-08-04

Interchangeable tip-open cell fluorometer

#80
20050168732
2005-08-04

Method and apparatus for detecting contaminants on a window surface of a viewing system utilizing light

#81
20050111003
2005-05-26

Condensation sensor and method of controlling condensate film in sealed space with condensation sensor

#82
15725085
2018-08-21

Detection and identification of opaqueness of vehicle windows