Charging; Discharging; Manipulation of charge

Introduced: September 1968

Of 18 combined children, 10 exist in both systems.

8 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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F27D 2003/0001 2nd only +8 CPC CPC only CPC only
F27D 2003/0034 2nd only +28 CPC CPC only CPC only
F27D 2003/0085 2nd only +8 CPC CPC only CPC only
F27D 3/0021 +1 CPC CPC only CPC only
F27D 3/0024 CPC only CPC only
F27D 3/0025 +5 CPC CPC only CPC only
F27D 3/0033 CPC only CPC only
F27D 3/0084 CPC only CPC only
F27D 3/02 Skids or tracks for heavy objects +2 CPC IPC+CPC Available in IPC and CPC
F27D 3/04 Ram or pusher apparatus +1 CPC IPC+CPC Available in IPC and CPC
F27D 3/06 Charging or discharging machines on travelling carriages IPC+CPC Available in IPC and CPC
F27D 3/08 Screw feeders; Screw dischargers IPC+CPC Available in IPC and CPC
F27D 3/10 Charging directly from hoppers or shoots +1 CPC IPC+CPC Available in IPC and CPC
F27D 3/12 Travelling or movable supports or containers for the charge +4 CPC IPC+CPC Available in IPC and CPC
F27D 3/14 Charging or discharging liquid or molten material +1 CPC IPC+CPC Available in IPC and CPC
F27D 3/15 Tapping equipment; Equipment for removing slag +2 CPC IPC+CPC Available in IPC and CPC
F27D 3/16 Introducing a fluid jet or current into the charge (F27D3/18 takes precedence) +5 CPC IPC+CPC Available in IPC and CPC
F27D 3/18 Charging particulate material using a fluid carrier since 1980 +1 CPC IPC+CPC Available in IPC and CPC

Class F27,2013–2023, worldwide · Source: EPO PATSTAT

Class F27,2013–2023, worldwide · Source: EPO PATSTAT