Fibre or filament compositions (manufacture of fibres or filaments C03B37/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Fibre or filament compositions

CPC: Fibre or filament compositions (manufacture of fibres or filaments C03B37/00)

Full titles differ between systems:

IPC:

Fibre or filament compositions

CPC:

Fibre or filament compositions (manufacture of fibres or filaments C03B37/00)

CPC subdivides this area 2x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions, 1 exist only in IPC.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1985.

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C03C 13/001 +1 CPC CPC only CPC only
C03C 13/003 CPC only CPC only
C03C 13/005 CPC only CPC only
C03C 13/006 +1 CPC CPC only CPC only
C03C 13/008 CPC only CPC only
C03C 13/02 containing compounds of titanium or zirconium since 1985 IPC only IPC only
C03C 13/04 Fibre optics, e.g. core and clad fibre compositions (light guides G02B6/00) since 1985 +3 CPC IPC+CPC Available in IPC and CPC
C03C 13/06 Mineral fibres, e.g. slag wool, mineral wool, rock wool since 1985 IPC+CPC Available in IPC and CPC

Class C03,2013–2023, worldwide · Source: EPO PATSTAT

Class C03,2013–2023, worldwide · Source: EPO PATSTAT