B29D 11/00278 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B29D 11/00278

Full Title

Producing optical elements, e.g. lenses or prisms (grinding or polishing of optical elements B24B; constructional form of optical elements G02B; )

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.