ClassID:

167883

G01N2021/434 - 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; Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle Dipping block in contact with sample, e.g. prism

Recent Application in this class:
#1
20210396663
2021-12-23

Electricity measuring type surface plasmon resonance sensor, electricity measuring type surface plasmon resonance sensor chip, method for detecting surface plasmon resonance changes

#2
20210048388
2021-02-18

PORTABLE REFRACTOMETER

#3
20190056321
2019-02-21

Sensor device for containers of liquid substances

#4
20190003872
2019-01-03

Optical System, and Method for Identifying Fluid Through Said System

#5
20180306658
2018-10-25

Surface refractive index measurement method and surface stress measurement method using the same

#6
20180252586
2018-09-06

Apparatus and methods for measuring mode spectra for ion-exchanged glasses having steep index region

#7
20180231462
2018-08-16

Method for detecting a local change in refractive index of a dielectric medium located on the surface of an optical sensor

#8
20180106721
2018-04-19

Plasmonic sensor

#9
20180052034
2018-02-22

Method and device for monitoring an oil level in a machine

#10
20160377538
2016-12-29

Arrangement in connection with measuring window of refractometer, and refractometer

#11
20150330896
2015-11-19

Method and measuring device for continuously measuring the abbe number

#12
20150293274
2015-10-15

Deflecting prism and measuring assembly

#13
20150116713
2015-04-30

Apparatus and methods for measuring mode spectra for ion-exchanged glasses having steep index region

#14
20150042985
2015-02-12

Optical sensor apparatus to detect light based on the refractive index of a sample

#15
20140300889
2014-10-09

Apparatus and method for determining a fluid property downhole using a bulk reading refractometer

#16
20140132951
2014-05-15

Device for measuring urea concentration

#17
20130214138
2013-08-22

Optical sensor apparatus to detect light based on the refractive index of a sample

#18
20120161034
2012-06-28

Sensor assembly for fluid detection and discrimination

#19
20120081699
2012-04-05

Downhole gas breakout sensor

#20
20120081698
2012-04-05

Refractive index sensor for fluid analysis

#21
20120020769
2012-01-26

Fluid detection in turbine engine components

#22
20110211189
2011-09-01

Apparatus and method for determination of tear osmolarity

#23
20110188030
2011-08-04

MICROELECTRONIC SENSOR DEVICE FOR OPTICAL EXAMINATIONS IN A SAMPLE MEDIUM

#24
20100303413
2010-12-02

ATR PROBE

#25
20090279074
2009-11-12

Optically amplified critical wavelength refractometer

#26
20090153846
2009-06-18

FLUID LEVEL INDICATOR

#27
20090015822
2009-01-15

Fuel property detection device

#28
20080093173
2008-04-24

Accurate fluid volume measurement for thermally expanding fluids

#29
20080078924
2008-04-03

Sensor system for liquid detection with lens component having an apex