using solids, e.g. powders, pastes (using liquid suspensions of solids C23C8/40)

Introduced: January 1985

Title

Titles differ between systems:

IPC: using solids, e.g. powders, pastes

CPC: using solids, e.g. powders, pastes (using liquid suspensions of solids C23C8/40)

Full Title

Full titles differ between systems:

IPC:

Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals > using solids, e.g. powders, pastes

CPC:

Solid state diffusion of only non-metal elements into metallic material surfaces (diffusion of silicon C23C10/00); Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (C23C14/00 takes precedence) > using solids, e.g. powders, pastes (using liquid suspensions of solids C23C8/40)

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1985.

Child Classifications

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C23C 8/62 only one element being applied since 1985 IPC+CPC Available in IPC and CPC
C23C 8/72 more than one element being applied in one step since 1985 IPC+CPC Available in IPC and CPC
C23C 8/78 more than one element being applied in more than one step since 1985 IPC+CPC Available in IPC and CPC