DIFF Subgroup
C02F 11/14 with addition of chemical agents
Introduced: January 1980
Full Title
Treatment of sludge; Devices therefor > by de-watering, drying or thickening > with addition of chemical agents
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2019.
Child Classifications
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- C02F 11/143 using inorganic substances (C02F11/148 takes precedence) since 2019 IPC+CPC Available in IPC and CPC
- C02F 11/147 using organic substances (C02F11/148 takes precedence) since 2019 IPC+CPC Available in IPC and CPC
- C02F 11/148 Combined use of inorganic and organic substances, being added in the same treatment step since 2019 IPC+CPC Available in IPC and CPC