Patents-Review.com
ClassID:

168137 ⎘

G01N2021/855 - 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 specially adapted for particular applications; Investigating moving fluids or granular solids; Probe photometers, i.e. with optical measuring part dipped into fluid sample Underground probe, e.g. with provision of a penetration tool

Recent Application in this class:
#1
20250215797
2025-07-03

ATTENUATED TOTAL INTERNAL REFLECTION OPTICAL SENSOR FOR OBTAINING DOWNHOLE FLUID PROPERTIES

 #2
20250215795
2025-07-03

PRESSURE TUNED INFRARED LIGHT EMITTING DIODE FOR DOWNHOLE SPECTROSCOPY

 #3
20240418646
2024-12-19

Systems and methods for differentiating bubble points from dew points

 #4
20240337596
2024-10-10

Method And Apparatus For Mapping Distribution of Chemical Compounds in Soil

 #5
20240319088
2024-09-26

Method and apparatus for detecting chemical compounds in soil

 #6
20240044786
2024-02-08

Method and apparatus for detecting chemical compounds in soil

 #7
20230400408
2023-12-14

Method and apparatus for mapping distribution of chemical compounds in soil

 #8
20230296019
2023-09-21

Attenuated total internal reflection optical sensor for obtaining downhole fluid properties

 #9
20230026607
2023-01-26

Optical probe comprising a waveguide and method for real-time and in-situ measurements of soil properties

 #10
20220316331
2022-10-06

4D chemical fingerprint well monitoring

 #11
20210047923
2021-02-18

Device and method for optical analysis using multiple integrated computational elements

 #12
20200355073
2020-11-12

Attenuated total internal reflection optical sensor for obtaining downhole fluid properties

 #13
20200300761
2020-09-24

Methods, systems, and devices for measuring in situ saturations of petroleum and NAPL in soils

 #14
20200018162
2020-01-16

DEVICE AND METHOD FOR OPTICAL ANALYSIS USING MULTIPLE INTEGRATED COMPUTATIONAL ELEMENTS

 #15
20190284919
2019-09-19

Downhole tools and methods for isolating and analyzing gases from downhole fluids

 #16
20190162663
2019-05-30

Methods, systems, and devices for measuring in situ saturations of petroleum and NAPL in soils

 #17
20180073355
2018-03-15

Frequency comb for downhole chemical sensing

 #18
20160061743
2016-03-03

Method and apparatus for in-situ fluid evaluation

 #19
20120251335
2012-10-04

PUMP CONTROLLER WITH MULTIPHASE MEASUREMENT

 #20
20090241685
2009-10-01

Systems and methods for intercepting submarine groundwater for desalination

 #21
20080239299
2008-10-02

CRDS mirror for normal incidence fiber optic coupling

 #22
20080087078
2008-04-17

Logging system and method for in-situ fluids sensing through optical fiber with attenuation compensation

 #23
20070068242
2007-03-29

Method and apparatus for elemental analysis of a fluid downhole