H04J 14/0202 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

H04J 14/0202

Full Title

Optical multiplex systems > Wavelength-division multiplex systems

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.