DIFF Main Group
B01D 37/00 Processes of filtration (processes specially adapted for filtering gases B01D46/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Processes of filtration
CPC: Processes of filtration (processes specially adapted for filtering gases B01D46/00)
Full Title
Full titles differ between systems:
IPC:
Processes of filtration
CPC:
Processes of filtration (processes specially adapted for filtering gases B01D46/00)
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B01D 37/02 Precoating the filter medium; Addition of filter aids to the liquid being filtered +1 CPC IPC+CPC Available in IPC and CPC