characterised by variables to be controlled

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 variables to be controlled

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

Navigate with arrow keys, Enter to open

H01M 8/04701 Temperature since 2016 +5 CPC IPC+CPC Available in IPC and CPC
H01M 8/04746 Pressure; Flow since 2016 +5 CPC IPC+CPC Available in IPC and CPC
H01M 8/04791 Concentration; Density (H01M8/04828 takes precedence) since 2016 +4 CPC IPC+CPC Available in IPC and CPC
H01M 8/04828 Humidity; Water content since 2016 +3 CPC IPC+CPC Available in IPC and CPC
H01M 8/04858 Electric variables since 2016 +4 CPC IPC+CPC Available in IPC and CPC
H01M 8/04955 Shut-off or shut-down of fuel cells since 2016 IPC+CPC Available in IPC and CPC