ClassID:

168111

G01N21/83 - 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 precipitate or turbidity Turbidimetric titration

Recent Application in this class:
#1
20230227759
2023-07-20

Field-deployable Multiplexed Sampling and Monitoring Device and Bacterial Contamination Measurement Method

#2
20200116695
2020-04-16

Method for quantitatively assessing stability additive performance at field dosages

#3
20190154674
2019-05-23

Method of agglutination immunoassay

#4
20190064076
2019-02-28

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

#5
20180251713
2018-09-06

Field-deployable multiplexed sampling and monitoring device and bacterial contamination measurement method

#6
20170227433
2017-08-10

Method of determining the stability reserve and solubility parameters of a process stream containing asphaltenes by joint use of turbidimetric method and refractive index

#7
20170102329
2017-04-13

Particle characterisation instrument

#8
20170082539
2017-03-23

Method for determining a settling rate of at least one foulant in oil-based fluids

#9
20170023485
2017-01-26

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

#10
20160305890
2016-10-20

Optical determination of anionic charge in a process stream

#11
20150219614
2015-08-06

Methods of determining crude oil stability

#12
20140375991
2014-12-25

Method and apparatus for determining asphaltene yield and flocculation point of crude oil

#13
20120142115
2012-06-07

Method for determination of system parameters for reducing crude unit corrosion

#14
20110013185
2011-01-20

Gel particle measuring apparatus

#15
20100251935
2010-10-07

Automated titration method for use on blended asphalts

#16
20100129260
2010-05-27

GELATION MEASURING APPARATUS AND SAMPLE CELL

#17
20100027015
2010-02-04

Optical sensor

#18
20070071648
2007-03-29

Apparatus and method for examining a liquid sample

#19
20050107956
2005-05-19

Concentration measuring method