Filters formed by clamping together several filtering elements or parts of such elements (disc filters B01D29/39)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Filters formed by clamping together several filtering elements or parts of such elements

CPC: Filters formed by clamping together several filtering elements or parts of such elements (disc filters B01D29/39)

Full titles differ between systems:

IPC:

Filters formed by clamping together several filtering elements or parts of such elements

CPC:

Filters formed by clamping together several filtering elements or parts of such elements (disc filters B01D29/39)

Of 9 combined children, 6 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

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B01D 25/001 CPC only CPC only
B01D 25/002 CPC only CPC only
B01D 25/003 +5 CPC CPC only CPC only
B01D 25/02 in which the elements are pre-formed independent filtering units, e.g. modular systems IPC+CPC Available in IPC and CPC
B01D 25/12 Filter presses, i.e. of the plate or plate and frame type IPC+CPC Available in IPC and CPC
B01D 25/22 Cell-type filters IPC+CPC Available in IPC and CPC
B01D 25/28 Leaching or washing filter cakes in the filter +3 CPC IPC+CPC Available in IPC and CPC
B01D 25/30 Feeding devices +3 CPC IPC+CPC Available in IPC and CPC
B01D 25/32 Removal of the filter cakes +2 CPC IPC+CPC Available in IPC and CPC

Class B01,2013–2023, worldwide · Source: EPO PATSTAT

Class B01,2013–2023, worldwide · Source: EPO PATSTAT