C22B 34/1263 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

C22B 34/1263

Full Title

Obtaining refractory metals > Obtaining titanium, zirconium or hafnium > Obtaining titanium

Of 4 combined children, 0 exist in both systems.

4 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.