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PCE
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DIFF Subgroup
C04B 35/50

based on rare-earth compounds

Introduced: September 1968

Title

Titles differ between systems:

IPC: based on rare earth compounds

CPC: based on rare-earth compounds

Full Title

Full titles differ between systems:

IPC:

Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products > based on rare earth compounds

CPC:

Shaped ceramic products characterised by their composition ; Ceramics compositions ( containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides other than as macroscopic reinforcing agents C22C); Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products > based on rare-earth compounds

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1995.

Child Classifications

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  • C04B 35/505 based on yttrium oxide since 1995 IPC+CPC Available in IPC and CPC