Patents-Review.com
ClassID:

167891 ⎘

G01N21/455 - 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 incident light is modified in accordance with the properties of the material investigated; Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods Schlieren methods, e.g. for gradient index determination; Shadowgraph

Recent Application in this class:
#1
20260126383
2026-05-07

One- and Two-Dimensional Spectral-Spatial Filters

 #2
20260049931
2026-02-19

OPTICAL TEST APPARATUS AND OPTICAL TEST METHOD

 #3
20250314878
2025-10-09

SCHLIEREN SYSTEM FOR IN-SITU/ONLINE MONITORING OF SPATTER IN LARGE-AREA MELT POOL

 #4
20240142791
2024-05-02

VISUALIZING CATHETER IRRIGATION USING SCHLIEREN IMAGES

 #5
20240027342
2024-01-25

REAL-TIME, REFERENCE-FREE BACKGROUND ORIENTED SCHLIEREN IMAGING SYSTEM

 #6
20230324297
2023-10-12

System and method for focusing color Schlieren diagnostics

 #7
20230288619
2023-09-14

OPTICAL TEST APPARATUS AND OPTICAL TEST METHOD

 #8
20230123777
2023-04-20

Real-time, reference-free background oriented schlieren imaging system

 #9
20230099653
2023-03-30

OPTICAL TEST APPARATUS AND OPTICAL TEST METHOD

 #10
20230082814
2023-03-16

SYSTEMS AND METHODS FOR MONITORING THERAPEUTIC SAMPLES USING SCHLIEREN

 #11
20230080677
2023-03-16

PROCESSING APPARATUS, OPTICAL APPARATUS, MANUFACTURING APPARATUS, PROCESSING METHOD, AND NON-TRANSITORY STORAGE MEDIUM STORING PROGRAM

 #12
20220404277
2022-12-22

METHOD FOR DETECTING PRIMARY GAS FLOWS IN FLOW CHAMBERS, USE OF A GAS MIXTURE THEREFOR AND GAS MIXTURE

 #13
20220390368
2022-12-08

Optical coherence tomography device, optical coherence tomography method, and non-transitory computer readable medium storingin structions therefore

 #14
20220299437
2022-09-22

Methods and apparatus for a self-aligned digital projection and reflected glare reduction imaging system

 #15
20220202480
2022-06-30

Visualizing catheter irrigation using schlieren images

 #16
20220187161
2022-06-16

Deflectometry measurement system

 #17
20220113251
2022-04-14

Compact, self-aligned projection focusing schlieren method and system

 #18
20210080389
2021-03-18

System and method for focusing color Schlieren diagnostics

 #19
20200378899
2020-12-03

GLASS PROCESSING APPARATUS AND METHODS

 #20
20200333247
2020-10-22

Optical test apparatus and optical test method

 #21
20200150326
2020-05-14

Optical test apparatus and optical test method

 #22
20190376106
2019-12-12

METHOD FOR ANALYSING A SPRAY GENERATED BY A DEVICE FOR DISPENSING FLUID PHARMACEUTICAL PRODUCT

 #23
20190219501
2019-07-18

Optical test apparatus and optical test method

 #24
20180341099
2018-11-29

Method for observing a sample by lens-free imaging

 #25
20180188167
2018-07-05

System and method for focusing color Schlieren diagnostics

 #26
20180095034
2018-04-05

Device that generates salt-state information of a road

 #27
20170212343
2017-07-27

Method for observing a sample by lens-free imaging

 #28
20160245718
2016-08-25

Systems and methods for optical scanning of fluid transport pipelines

 #29
20160110860
2016-04-21

Method and device for determining a three-dimensional distortion

 #30
20160109362
2016-04-21

Method for determining a local refractive power and device therefor

 #31
20120058569
2012-03-08

Method and device for determining reflection coefficients on filter arrangements having thin layers

 #32
20070036464
2007-02-15

Method to determine the optical quality of a glazing

 #33
20070008522
2007-01-11

Glazing inspection

 #34
20050036153
2005-02-17

Apparatus and process for characterizing samples