DIFF Subgroup
G01N 23/04 and forming images of the material
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or > by transmitting the radiation through the material > and forming images of the material
CPC:
Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 > by transmitting the radiation through the material > and forming images of the material
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1980.
Child Classifications
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- G01N 23/041 Phase-contrast imaging, e.g. using grating interferometers since 2018 IPC+CPC Available in IPC and CPC
- G01N 23/046 using tomography, e.g. computed tomography [CT] since 2018 IPC+CPC Available in IPC and CPC