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DIFF Subgroup
C05F 17/921

Devices in which the material is conveyed essentially horizontally between inlet and discharge means

Introduced: January 2020

Full Title

Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation > Apparatus therefor > Devices in which the material is conveyed essentially horizontally between inlet and discharge means

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 2020.

Child Classifications

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  • C05F 17/929 Cylinders or drums since 2020 IPC+CPC Available in IPC and CPC
  • C05F 17/936 Tunnels since 2020 IPC+CPC Available in IPC and CPC
  • C05F 17/939 CPC only CPC only
  • C05F 17/943 Means for combined mixing and conveying since 2020 IPC+CPC Available in IPC and CPC