ClassID:

168106

G01N21/79 - 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 material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour Photometric titration

Recent Application in this class:
#1
20250102442
2025-03-27

QUANTIFYING COLOR CHANGES IN CHEMICAL TEST PADS INDUCED BY DIFFERENT CONCENTRATIONS OF ANALYTES UNDER DIFFERENT LIGHTING CONDITIONS

#2
20250035626
2025-01-30

METHOD, APPARATUS AND SYSTEM FOR DETECTING AND DETERMINING COMPRISED REAGENT PADS BY QUANTIFYING COLOR CHANGES INDUCED BY EXPOSURE TO A HOSTILE ENVIRONMENT

#3
20240011912
2024-01-11

Quantifying color changes in chemical test pads induced by different concentrations of analytes under different lighting conditions

#4
20230400442
2023-12-14

TITRATION METHODS FOR DETECTING POLYVINYL SULFONATE (PVS) IN BUFFERS

#5
20230384305
2023-11-30

Method, apparatus and system for detecting and determining comprised reagent pads by quantifying color changes induced by exposure to a hostile environment

#6
20230270525
2023-08-31

Detection of residual fluid in endoscope channels

#7
20220104916
2022-04-07

Detection of residual fluid in endoscope channels

#8
20210404971
2021-12-30

Quantifying color changes in chemical test pads induced by different concentrations of analytes under different lighting conditions

#9
20210333215
2021-10-28

APPARATUS AND METHOD FOR DETERMINATION OF FLUID-SPECIFIC PARAMETERS AND/OR COMPONENTS

#10
20210231646
2021-07-29

MULTIFLUIDIC DEVICE AND PROCESSING SYSTEM FOR COLORIMETRIC MULTIPLEXED DETECTION OF A SUBSTANCE

#11
20210208082
2021-07-08

Method, apparatus and system for detecting and determining compromised reagent pads by quantifying color changes induced by exposure to a hostile environment

#12
20210190700
2021-06-24

Method for determining a parameter dependent on the concentration of at least one analyte in a sample liquid

#13
20210024873
2021-01-28

REAL-TIME MONITORING OF PROTEIN CONCENTRATION USING ULTRAVIOLET SIGNAL

#14
20210010943
2021-01-14

Method and device for the determination of film forming amines in a liquid

#15
20200385777
2020-12-10

METHOD FOR DETERMINING DYSBIOSIS IN THE INTESTINAL MICROBIOME

#16
20200340969
2020-10-29

Determining the age of a tunnel

#17
20200225166
2020-07-16

Method, apparatus and system for detecting and determining compromised reagent pads by quantifying color changes induced by exposure to a hostile environment

#18
20190339247
2019-11-07

Determining the age of a tunnel

#19
20190310235
2019-10-10

Methods for colorimetric endpoint detection and multiple analyte titration systems

#20
20190310203
2019-10-10

Quantifying color changes of chemical test pads induced by specific concentrations of biological analytes under different lighting conditions

#21
20190091264
2019-03-28

NON-HEMOLYZING BLOOD FILTER AND METHODS FOR FILTERING BLOOD WITHOUT HEMOLYSIS

#22
20190064076
2019-02-28

Method and system for analysing a blend of two or more hydrocarbon feed streams

#23
20190003978
2019-01-03

PROCESS AND APPARATUS TO DETECT MERCAPTANS IN A CAUSTIC STREAM

#24
20190003961
2019-01-03

Automatic titration device

#25
20180188159
2018-07-05

PROCESS FOR MONITORING THE CATALYTIC ACTIVITY OF AN IONIC LIQUID

#26
20180180555
2018-06-28

PROCESS FOR MONITORING THE CATALYTIC ACTIVITY OF AN IONIC LIQUID

#27
20180120276
2018-05-03

GAS MOLECULE SENSOR

#28
20170248563
2017-08-31

Method for measuring dissolved oxygen of oxygen water

#29
20170167971
2017-06-15

Method of expanding the measurement range of photometric systems

#30
20170082591
2017-03-23

System and method for calculating concentration of water treatment chemical

#31
20170023485
2017-01-26

Method and system for analysing a blend of two or more hydrocarbon feed streams

#32
20160252460
2016-09-01

Quantifying color changes of chemical test pads induced by specific concentrations of biological analytes under different lighting conditions

#33
20160178595
2016-06-23

Detecting stannous ions

#34
20160178527
2016-06-23

Measuring the rate of release of metal ions

#35
20160089399
2016-03-31

NON-HEMOLYZING BLOOD FILTER AND METHODS FOR FILTERING BLOOD WITHOUT HEMOLYSIS

#36
20160077014
2016-03-17

Automatic titrator

#37
20160041103
2016-02-11

Lab-on-a-chip for alkalinity analysis

#38
20160003750
2016-01-07

METHOD AND APPARATUS FOR TITRATION

#39
20150377790
2015-12-31

Method and system for testing sodium dimethyldithiocarbamate in water

#40
20150037901
2015-02-05

Methods and kits for quantitative determination of total organic acid content in a coolant

#41
20140273244
2014-09-18

Automatic titrator

#42
20140141523
2014-05-22

Optical cell

#43
20130217134
2013-08-22

Methods and systems for monitoring content of coating solutions using automated titration devices

#44
20120301970
2012-11-29

Methods and kits for quantitative determination of total organic acid content in a coolant

#45
20120252126
2012-10-04

Method for analyzing and detecting calcium element in ore

#46
20120149121
2012-06-14

Optical cell

#47
20120021527
2012-01-26

Lab-on-a-chip for alkalinity analysis

#48
20120003124
2012-01-05

Chemical analyzer

#49
20110318841
2011-12-29

Method for Determining Vanadium Content in a Tungsten Matrix with Added Vanadium or Simultaneously Added Chromium and Vanadium

#50
20110281370
2011-11-17

Cation exchange capacity titration unit

#51
20100251935
2010-10-07

Automated titration method for use on blended asphalts

#52
20100059423
2010-03-11

CHEMICAL ANALYSER

#53
20090275144
2009-11-05

System and Method for Colorimetric Titration Measurements

#54
20090145202
2009-06-11

Optical cell

#55
20060210961
2006-09-21

Method and system for analysing a liquid sample

#56
20050276724
2005-12-15

Apparatus for mixing and/or testing small volumes of fluids

#57
20050170515
2005-08-04

Analytical rotor system with an analytical signal path

#58
20050170514
2005-08-04

Analytical rotor system for method of standard additions testing

#59
20050170513
2005-08-04

Analytical rotor system for titration testing

#60
20050169805
2005-08-04

Analytical rotor system with a sample chamber

#61
20050037508
2005-02-17

Microfluidic titration apparatus

#62
20050013740
2005-01-20

Computer-controlled automated titration apparatus for optically determining incompatibility of petroleum oils

#63
20050003554
2005-01-06

Automated sample analysis

#64
15782471
2020-04-14

Systems and methods for determining carbon system parameters of water

#65
13744555
2015-08-04

Apparatus and method for determining sodium dimethyldithiocarbamate in water