C01B 17/0426 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

C01B 17/0426

Full Title

Sulfur; Compounds thereof > Preparation of sulfur; Purification > from gaseous sulfur compounds including gaseous sulfides

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.