IPC Main Group
B01D 37/00 Processes of filtration
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- Subclass:
- SEPARATION
3 direct subcodes
Child Classifications
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- B01D 37/02 Precoating the filtering elements or material; Addition of filter aids to the liquid being filtered
- B01D 37/03 using flocculating agents
- B01D 37/04 Controlling the filtration