by means of internal or external coatings

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Protection of pipes or pipe fittings against corrosion or incrustation > by means of internal or external coatings

CPC:

Protection of pipes or pipe fittings against corrosion or incrustation (compound tubes F16L9/14) > by means of internal or external coatings

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

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F16L 58/04 Coatings characterised by the materials used (F16L58/16 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
F16L 58/16 the coating being in the form of a bandage since 1974 IPC+CPC Available in IPC and CPC

Class F16,2013–2023, worldwide · Source: EPO PATSTAT

Class F16,2013–2023, worldwide · Source: EPO PATSTAT