Patents-Review.com
ClassID:

167729 ⎘

G01N2021/154 - 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; Preventing contamination of the components of the optical system or obstruction of the light path Ultrasonic cleaning

Recent Application in this class:
#1
20250067658
2025-02-27

Equipment For Measuring The Content Of Organic Substances In Water Emulsions And Solutions

 #2
20240353314
2024-10-24

CLEANING SYSTEM FOR PROBE UNIT

 #3
20240024929
2024-01-25

METHOD FOR KEEPING CLEAR A VIEWING REGION OF AN OPTICAL MONITORING DEVICE

 #4
20230349815
2023-11-02

SELF-CLEANING OPTICAL PROBE

 #5
20220099563
2022-03-31

Self cleaning optical probe

 #6
20210302303
2021-09-30

Cleaning system for a smoke detector

 #7
20210165123
2021-06-03

Mid-infrared carbon dioxide sensor

 #8
20200108425
2020-04-09

Cleaning apparatus, cleaning method, and imaging apparatus

 #9
20180231684
2018-08-16

Mid-infrared acid sensor

 #10
20170248568
2017-08-31

Multi parameter swimming pool fluid analysis and regulating method and device

 #11
20170242149
2017-08-24

Mid-infrared carbon dioxide sensor

 #12
20170115225
2017-04-27

Method and apparatus for measurement of a material in a liquid through absorption of light

 #13
20160349157
2016-12-01

System and method for repeatable fluid measurements

 #14
20160202508
2016-07-14

Method of obtaining or maintaining optical transmittance into deaerated liquid

 #15
20160146721
2016-05-26

Open path optical sensing system having an ultrasonic cleaner and method

 #16
20160025617
2016-01-28

Probe unit with cleaning means

 #17
20150285733
2015-10-08

Method and system for ultrasonic cavitation cleaning in liquid analysis systems

 #18
20150260639
2015-09-17

SELF-CLEANING OPTICAL PROBE

 #19
20140166910
2014-06-19

Arrangement for optical measuring of one or more physical, chemical and/or biological, process variables of a medium

 #20
20140144215
2014-05-29

Expandable enclosure for oil-in-water analyzers

 #21
20130235189
2013-09-12

Imaging apparatus

 #22
20120287422
2012-11-15

System for measuring properties of test samples in fluid

 #23
20120255361
2012-10-11

SELF CLEANING OPTICAL PROBE

 #24
20120002037
2012-01-05

System and method for ground material characterization in a grinding system

 #25
20110278457
2011-11-17

Device for FTIR absorption spectroscopy

 #26
20110259378
2011-10-27

ACOUSTIC CLEANING OF OPTICAL PROBE WINDOW

 #27
20110032528
2011-02-10

Integrated shear-vertical surface acoustic wave and surface plasmon resonance sensing device and method

 #28
20100315645
2010-12-16

HIGH POWER ACOUSTIC RESONATOR WITH INTEGRATED OPTICAL INTERFACIAL ELEMENTS

 #29
20100042389
2010-02-18

Self-cleaning submerged instrumentation

 #30
20090032733
2009-02-05

Apparatus for measuring fluorescent material in a liquid

 #31
20090009770
2009-01-08

Turbidimeter with ultrasonically cleaned components

 #32
20080243411
2008-10-02

Method for monitoring the optical transmissibility through an observation window and device for cleaning an observation window

 #33
20080030714
2008-02-07

High power acoustic resonator with integrated optical interfacial elements

 #34
20060042671
2006-03-02

Ultrasonic optical cleaning system

 #35
20050269499
2005-12-08

Method and sensor for monitoring gas in a downhole environment

 #36
20050052642
2005-03-10

Method and its apparatus for inspecting defects