Arrangements or apparatus for facilitating the optical investigation

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

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

CPC:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light (G01N3/00 - G01N19/00 take precedence) > Arrangements or apparatus for facilitating the optical investigation

CPC subdivides this area 2x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

Note: 5 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1980.

Child Classifications

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G01N 2021/0106 2nd only +3 CPC CPC only CPC only
G01N 2021/0162 2nd only +2 CPC CPC only CPC only
G01N 2021/0181 2nd only CPC only CPC only
G01N 2021/0187 2nd only CPC only CPC only
G01N 2021/0193 2nd only CPC only CPC only
G01N 21/03 Cuvette constructions since 1980 +16 CPC IPC+CPC Available in IPC and CPC
G01N 21/11 Filling or emptying of cuvettes since 1980 +1 CPC IPC+CPC Available in IPC and CPC
G01N 21/13 Moving of cuvettes or solid samples to or from the investigating station since 1980 +1 CPC IPC+CPC Available in IPC and CPC
G01N 21/15 Preventing contamination of the components of the optical system or obstruction of the light path since 1980 +5 CPC IPC+CPC Available in IPC and CPC