using chemical processes

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor > using chemical processes

CPC:

Making metallic powder or suspensions thereof > using chemical processes

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

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

IPC defines codes here since 1980.

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B22F 2009/165 2nd only CPC only CPC only
B22F 9/18 with reduction of metal compounds since 1980 IPC+CPC Available in IPC and CPC
B22F 9/30 with decomposition of metal compounds, e.g. by pyrolysis since 1980 +1 CPC IPC+CPC Available in IPC and CPC

Class B22,2013–2023, worldwide · Source: EPO PATSTAT

Class B22,2013–2023, worldwide · Source: EPO PATSTAT