Radiation pyrometry, e.g. infrared or optical thermometry

Introduced: September 1968

Additional Content IPC

Radiation Waves belonging to the sub-millimeter (Terahertz), infrared, visible or ultraviolet parts of the electromagnetic spectrum

Systems for controlling combustion using light-sensitive elements Optical systems, e.g. for plasma diagnostics, used in thermonuclear fusion reactors

Of 24 combined children, 12 exist in both systems.

12 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

1 shared codes have differing titles between IPC and CPC.

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G01J 2005/0074 2nd only CPC only CPC only
G01J 2005/0077 2nd only CPC only CPC only
G01J 2005/0092 2nd only CPC only CPC only
G01J 5/0003 +2 CPC CPC only CPC only
G01J 5/0014 +1 CPC CPC only CPC only
G01J 5/0022 +3 CPC CPC only CPC only
G01J 5/0037 +1 CPC CPC only CPC only
G01J 5/0044 CPC only CPC only
G01J 5/0066 CPC only CPC only
G01J 5/007 CPC only CPC only
G01J 5/0088 CPC only CPC only
G01J 5/0096 CPC only CPC only
G01J 5/02 Constructional details +12 CPC IPC+CPC Available in IPC and CPC
G01J 5/10 using electric radiation detectors +2 CPC IPC+CPC Available in IPC and CPC
G01J 5/38 using extension or expansion of solids or fluids IPC+CPC Available in IPC and CPC
G01J 5/46 using radiation pressure or radiometer effect IPC+CPC Available in IPC and CPC
G01J 5/48 Thermography; Techniques using wholly visual means +1 CPC IPC+CPC Available in IPC and CPC
G01J 5/52 using comparison with reference sources, e.g. disappearing-filament pyrometer +2 CPC IPC+CPC Available in IPC and CPC
G01J 5/58 using absorption; using extinction effect +1 CPC IPC+CPC Available in IPC and CPC
G01J 5/59 using polarisation; Details thereof since 2022 IPC+CPC Available in IPC and CPC

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

Class G01,2013–2023, worldwide · Source: EPO PATSTAT