DIFF Subgroup
H01M 8/0271 Sealing or supporting means around electrodes, matrices or membranes
Introduced: January 2016
Full Title
Full titles differ between systems:
IPC:
Fuel cells; Manufacture thereof > Details > Sealing or supporting means around electrodes, matrices or membranes
CPC:
Fuel cells; Manufacture thereof > Details (electrodes H01M4/86 - H01M4/98) > Sealing or supporting means around electrodes, matrices or membranes
IPC and CPC are identically structured here. All 4 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 8/0273 with sealing or supporting means in the form of a frame since 2016 IPC+CPC Available in IPC and CPC
- H01M 8/0276 Sealing means characterised by their form (H01M8/0273 takes precedence) since 2016 +1 CPC IPC+CPC Available in IPC and CPC
- H01M 8/028 Sealing means characterised by their material since 2016 IPC+CPC Available in IPC and CPC