F25J 1/0002 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

F25J 1/0002

Full Title

Processes or apparatus for liquefying or solidifying gases or gaseous mixtures

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.