characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function

Introduced: January 2016

Full Title

Fuel cells; Manufacture thereof > Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids > Processes for controlling fuel cells or fuel cell systems > characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2016.

Child Classifications

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H01M 8/0432 Temperature; Ambient temperature since 2016 +7 CPC IPC+CPC Available in IPC and CPC
H01M 8/0438 Pressure; Ambient pressure; Flow since 2016 +7 CPC IPC+CPC Available in IPC and CPC
H01M 8/0444 Concentration; Density (H01M8/04492 takes precedence) since 2016 +6 CPC IPC+CPC Available in IPC and CPC
H01M 8/04492 Humidity; Ambient humidity; Water content since 2016 +5 CPC IPC+CPC Available in IPC and CPC
H01M 8/04537 Electric variables since 2016 +4 CPC IPC+CPC Available in IPC and CPC
H01M 8/04664 Failure or abnormal function since 2016 +3 CPC IPC+CPC Available in IPC and CPC