C02F 2003/001 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup Additional Only

C02F 2003/001

Full Title

Biological treatment of water, waste water, or sewage

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

Diff view requires codes present in both systems.