by distillation or evaporation

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Treatment of water, waste water, or sewage > by heating > by distillation or evaporation

CPC:

Treatment of water, waste water, or sewage (C02F3/00 - C02F9/00 take precedence) > by heating (methods of steam generation F22B; preheating boiler feed-water or accumulating preheated boiler feed-water F22D) > by distillation or evaporation

CPC subdivides this area 2x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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C02F 1/041 CPC only CPC only
C02F 1/042 CPC only CPC only
C02F 1/043 CPC only CPC only
C02F 1/045 CPC only CPC only
C02F 1/046 CPC only CPC only
C02F 1/047 CPC only CPC only
C02F 1/048 CPC only CPC only
C02F 1/06 Flash evaporation since 1980 IPC+CPC Available in IPC and CPC
C02F 1/08 Thin film evaporation since 1980 IPC+CPC Available in IPC and CPC
C02F 1/10 by direct contact with a particulate solid or with a fluid, as a heat transfer medium since 1980 IPC+CPC Available in IPC and CPC
C02F 1/14 using solar energy since 1980 IPC+CPC Available in IPC and CPC
C02F 1/16 using waste heat from other processes since 1980 IPC+CPC Available in IPC and CPC
C02F 1/18 Transportable devices to obtain potable water since 1980 IPC+CPC Available in IPC and CPC