C01B 7/0731 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

C01B 7/0731

Full Title

Halogens; Halogen acids (oxyacids C01B11/00) > Chlorine; Hydrogen chloride > Purification

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.