G01N2021/432 - CPC Classification Index

ClassID:

167881 ⎘

G01N2021/432 - 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 by measuring critical angle; Dip refractometers, e.g. using optical fibres comprising optical fibres

Sub-classes:

G01N2021/433 » {with an unclad part on the fibre} 4

Recent Application in this class:

20230313679

2023-10-05

Immersed lens downhole refractometer

20230152305

2023-05-18

APPARATUSES, SYSTEMS, AND METHODS FOR SAMPLE TESTING

20200291777

2020-09-17

Immersed lens downhole refractometer

20200249157

2020-08-06

System and Method for Secondary Amplification of Refractive Detection Signals

20190391074

2019-12-26

Light arrangement for an optical device for measurement of an index of refraction, and a refractometer

20180231462

2018-08-16

Method for detecting a local change in refractive index of a dielectric medium located on the surface of an optical sensor

20180052102

2018-02-22

Distributed acoustic sensing in a multicore optical fiber using distributed mode coupling, delay, and simultaneous pulsing with selectable spatial modes