operating at high temperature, e.g. with stabilised ZrO2 electrolyte

Introduced: July 1974

Title

Titles differ between systems:

IPC: operating at high temperature, e.g. with stabilised ZrO electrolyte

CPC: operating at high temperature, e.g. with stabilised ZrO2 electrolyte

Full titles differ between systems:

IPC:

Fuel cells; Manufacture thereof > Fuel cells with solid electrolytes > operating at high temperature, e.g. with stabilised ZrO electrolyte

CPC:

Fuel cells; Manufacture thereof > Fuel cells with solid electrolytes > operating at high temperature, e.g. with stabilised ZrO2 electrolyte

Of 7 combined children, 5 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

IPC defines codes here since 2016.

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H01M 2008/128 2nd only CPC only CPC only
H01M 2008/1293 2nd only CPC only CPC only
H01M 8/1213 characterised by the electrode/electrolyte combination or the supporting material since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1231 with both reactants being gaseous or vaporised since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1233 with one of the reactants being liquid, solid or liquid-charged since 2016 IPC+CPC Available in IPC and CPC
H01M 8/124 characterised by the process of manufacturing or by the material of the electrolyte since 2016 IPC+CPC Available in IPC and CPC
H01M 8/1286 Fuel cells applied on a support, e.g. miniature fuel cells deposited on silica supports since 2016 IPC+CPC Available in IPC and CPC

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

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