Surface treatment of fibres or filaments made from glass, minerals or slags

Introduced: September 1968

IPC and CPC are identically structured here. All 9 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2000.

Child Classifications

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C03C 25/002 Thermal treatment since 2018 IPC+CPC Available in IPC and CPC
C03C 25/005 by mechanical means since 2018 IPC+CPC Available in IPC and CPC
C03C 25/007 Impregnation by solution; Solution doping or molecular stuffing of porous glass since 2018 IPC+CPC Available in IPC and CPC
C03C 25/10 Coating since 2000 IPC+CPC Available in IPC and CPC
C03C 25/60 by diffusing ions or metals into the surface since 2000 IPC+CPC Available in IPC and CPC
C03C 25/62 by application of electric or wave energy (for drying or dehydration C03C25/64); by particle radiation or ion implantation since 2000 IPC+CPC Available in IPC and CPC
C03C 25/64 Drying; Dehydration; Dehydroxylation since 2000 IPC+CPC Available in IPC and CPC
C03C 25/66 Chemical treatment, e.g. leaching, acid or alkali treatment (dehydroxylation C03C25/64) since 2000 IPC+CPC Available in IPC and CPC
C03C 25/70 Cleaning, e.g. for reuse (C03C25/62 -C03C25/66 take precedence) since 2000 IPC+CPC Available in IPC and CPC

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

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