ClassID:

167829

G01N2021/3188 - 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 typically monochromatic or band-limited band-limited

Recent Application in this class:
#1
20260023012
2026-01-22

ISOTOPE RATIO MEASURING DEVICE USING ISOTOPE NOTCH FILTER

#2
20250137922
2025-05-01

NON-DISPERSIVE INFRARED SENSOR

#3
20230194416
2023-06-22

PREPARATION METHOD FOR PREPARING SPECTROMETRIC DETERMINATIONS OF AT LEAST ONE MEASURAND IN A TARGET APPLICATION

#4
20220404268
2022-12-22

Efficient reading of birefringent data

#5
20220373456
2022-11-24

Non-dispersive infrared sensor

#6
20210349010
2021-11-11

Efficient reading of birefringent data

#7
20180217055
2018-08-02

Method and system for gas detection

#8
20170248576
2017-08-31

Blood coagulation analyzer and blood coagulation analyzing method

#9
20170097329
2017-04-06

Optical sensor for fluid analysis

#10
20170059740
2017-03-02

Band-limited integrated computational elements based on hollow-core fiber

#11
20140350870
2014-11-27

Method and system for gas detection

#12
20120318502
2012-12-20

Water detection and 3-phase fraction measurement systems

#13
20120182555
2012-07-19

Gas detector for atmospheric species detection

#14
20120112072
2012-05-10

Device and method for determining the composition of a mixture of fluids

#15
20120080587
2012-04-05

Water detection and 3-phase fraction measurement systems

#16
20110114832
2011-05-19

Water detection and 3-phase fraction measurement systems

#17
20110098542
2011-04-28

Apparatus and method for non-invasive measurement of a substance within a body

#18
20100243900
2010-09-30

Spectroscopy having correction for broadband distortion for analyzing multi-component samples

#19
20100182605
2010-07-22

OPTICAL FLUID DETECTOR

#20
20090309960
2009-12-17

Portable multispectral imaging systems

#21
20070153281
2007-07-05

Spectroscopic sensor for measuring sheet properties

#22
20070114372
2007-05-24

Water detection and 3-phase fraction measurement systems

#23
20060278829
2006-12-14

Method and apparatus for detecting the type of anesthetic gas

#24
20050002018
2005-01-06

Body fluid analyte measurement