Fuel cells with solid electrolytes

Introduced: July 1974

Full Title

Fuel cells; Manufacture thereof > Fuel cells with solid electrolytes

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

5 shared codes have differing titles between IPC and CPC.

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H01M 2008/1095 2nd only CPC only CPC only
H01M 8/1004 characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1007 with both reactants being gaseous or vaporised (H01M8/12 takes precedence) since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1009 with one of the reactants being liquid, solid or liquid-charged (H01M8/12 takes precedence) since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1016 characterised by the electrolyte material (H01M8/12 takes precedence) since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1097 Fuel cells applied on a support, e.g. miniature fuel cells deposited on silica supports since 2016 IPC+CPC Available in IPC and CPC
H01M 8/12 operating at high temperature, e.g. with stabilised ZrO2 electrolyte since 1974 +2 CPC IPC+CPC Available in IPC and CPC

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

Class H01,2013–2023, worldwide · Source: EPO PATSTAT