H03H 11/0422 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

H03H 11/0422

Full Title

Networks using active elements > Multiple-port networks > Frequency selective two-port networks

Of 7 combined children, 0 exist in both systems.

7 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.