ClassID:

167721

G01N21/09 - 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; Cuvette constructions adapted to resist hostile environments or corrosive or abrasive materials

Recent Application in this class:
#1
20240344995
2024-10-17

REFRACTORY LANCE ASSEMBLY AND REFRACTORY LANCE TUBE

#2
20240053275
2024-02-15

SENSING DEVICE WITH A SEALING STRUCTURE

#3
20230119268
2023-04-20

Method and apparatus for real-time direct surface fouling and scale monitoring of heat transfer surfaces

#4
20230055246
2023-02-23

Operando chemical and/or electrochemical testing cell

#5
20230041165
2023-02-09

Refractory anchor device and system

#6
20220316330
2022-10-06

Bi-conical optical sensor for obtaining downhole fluid properties

#7
20220260783
2022-08-18

Refractory anchor device and system

#8
20220026345
2022-01-27

Seal material for analyzer, and flow cell, detector, and analyzer using the same

#9
20210149116
2021-05-20

Method of making temperature-immune self-referencing Fabry-Pérot cavity sensors

#10
20210116644
2021-04-22

Temperature-immune self-referencing Fabry-Pérot cavity sensors

#11
20200355071
2020-11-12

Bi-conical optical sensor for obtaining downhole fluid properties

#12
20200309677
2020-10-01

Carbon filled polymer structure for high temperature chemical detector systems and methods

#13
20190359522
2019-11-28

Bismuth-indium alloy for liquid-tight bonding of optical windows

#14
20190271637
2019-09-05

Optical measurement cell, optical analyzer, and manufacturing method for optical measurement cell

#15
20190219389
2019-07-18

Device for measuring a shape of a wall portion of a coke oven

#16
20190177218
2019-06-13

Bismuth-indium alloy for liquid-tight bonding of optical windows

#17
20190064099
2019-02-28

Diamond-based sensor device for use in hostile environments

#18
20190049370
2019-02-14

Gas sensor and constant-temperature apparatus

#19
20180372614
2018-12-27

Optical measurement cell and particle properties measuring instrument using the same

#20
20170356840
2017-12-14

Sealing arrangement and sealing method of a measuring device

#21
20170268992
2017-09-21

In-situ gas-measuring system for gas reactors with critical environments

#22
20170121601
2017-05-04

Compositions of inorganic luminescent materials

#23
20160216213
2016-07-28

Flow analyzer for harsh environments

#24
20160047738
2016-02-18

HPLC reverse-flow flow cell

#25
20150355081
2015-12-10

Method and apparatus for siloxane measurements in a biogas

#26
20150316466
2015-11-05

Optical sensor apparatus and method of producing optical element used in optical sensor apparatus

#27
20150260638
2015-09-17

Optical transmission cell with minimized spurious absorption

#28
20150021482
2015-01-22

Device and method for recording contaminations in a hydraulic system

#29
20140240862
2014-08-28

Optical window assemblies

#30
20140160474
2014-06-12

Optical reflectors for spectrometer gas cells

#31
20140145087
2014-05-29

Device for UV-spectrometric analysis of gaseous compounds

#32
20140124672
2014-05-08

Device with a measurement arrangement for optical measurement of gases and gas mixtures, with compensation of environmental effects

#33
20130256549
2013-10-03

Device for UV-spectrometric analysis of gaseous compounds

#34
20130193325
2013-08-01

Method and apparatus for siloxane measurements in a biogas

#35
20120192621
2012-08-02

Heatable flow-through measurement cell

#36
20120156368
2012-06-21

Corrosion Resistant Gas Cell Formed From Nickel Plated Stainless Steel

#37
20110299067
2011-12-08

Optical measurement cell

#38
20100321690
2010-12-23

Pressure-proof probe

#39
20100283991
2010-11-11

Gas sensor with an especially explosion-proof housing

#40
20100238446
2010-09-23

Optical gas-analysis system and a gas flow cell

#41
20100223015
2010-09-02

Method and apparatus for siloxane measurements in a biogas

#42
20100079764
2010-04-01

Multigas Monitoring and Detection System

#43
20090323055
2009-12-31

CRDS BREWSTER GAS CELL

#44
20090218526
2009-09-03

SCATTERING CENTRE DETECTOR ASSEMBLY AND METHOD

#45
20090188668
2009-07-30

Apparatus and method for determining fluid properties

#46
20090031830
2009-02-05

Optical flow cell for use in high temperature and/or high pressure environments

#47
20080308733
2008-12-18

OPTICAL GAS SENSOR

#48
20080279726
2008-11-13

Cuvette

#49
20080251727
2008-10-16

Multigas monitoring and detection system

#50
20080168851
2008-07-17

Probe

#51
20080138261
2008-06-12

Flow-through apparatus for microscopic investigation of dissolution of pharmaceutical solids

#52
20080002205
2008-01-03

Gas content measuring apparatus and method

#53
20070242275
2007-10-18

Multigas monitoring and detection system

#54
20070190329
2007-08-16

Non-porous adherent inert coatings and methods of making

#55
20060286423
2006-12-21

Gas Composition monitoring arrangement

#56
20060162426
2006-07-27

Gas sensor

#57
20050244305
2005-11-03

Biochemical container

#58
20050230624
2005-10-20

Infrared sensor with explosion-proof protection for gas metering appliances

#59
20050170515
2005-08-04

Analytical rotor system with an analytical signal path

#60
20050170514
2005-08-04

Analytical rotor system for method of standard additions testing

#61
20050170513
2005-08-04

Analytical rotor system for titration testing

#62
20050133697
2005-06-23

Sensor devices containing co-polymer substrates for analysis of chemical and biological species in water and air

#63
20050128486
2005-06-16

Device and method for spectroscopically measuring a gas concentration by determining a single absorption line