Patent Classification Explorer PCE

DIFF Main Group

B01D 11/00

Solvent extraction

Introduced: September 1968

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

Child Classifications

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B01D 11/02 of solids +9 CPC IPC+CPC Available in IPC and CPC
B01D 11/04 of solutions which are liquid +10 CPC IPC+CPC Available in IPC and CPC
B01D 2011/002 2nd only CPC only CPC only
B01D 2011/005 2nd only CPC only CPC only
B01D 2011/007 2nd only CPC only CPC only