Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01M 8/043

applied during specific periods

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 > applied during specific periods

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 2016.

Child Classifications

Navigate with arrow keys, Enter to open

  • H01M 8/04302 applied during start-up since 2016 IPC+CPC Available in IPC and CPC
  • H01M 8/04303 applied during shut-down since 2016 IPC+CPC Available in IPC and CPC