F16K 15/144 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

F16K 15/144

Full Title

Check valves (valves specially adapted for inflatable balls A63B41/00) > with flexible valve members

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.