Preservation of foods or foodstuffs, in general

Introduced: January 2025

Of 12 combined children, 10 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2025.

Child Classifications

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A23B 2/001 CPC only CPC only
A23B 2/003 CPC only CPC only
A23B 2/05 by heating using irradiation or electric treatment (drying or kilning A23B2/90) since 2025 +1 CPC IPC+CPC Available in IPC and CPC
A23B 2/10 by treatment with pressure variation, shock, acceleration or shear stress since 2025 +1 CPC IPC+CPC Available in IPC and CPC
A23B 2/20 by heating materials in packages which are progressively transported, continuously or stepwise, through the apparatus since 2025 +2 CPC IPC+CPC Available in IPC and CPC
A23B 2/30 by heating materials in packages which are not progressively transported through the apparatus since 2025 IPC+CPC Available in IPC and CPC
A23B 2/40 by heating loose unpacked materials since 2025 +1 CPC IPC+CPC Available in IPC and CPC
A23B 2/50 by irradiation without heating since 2025 +2 CPC IPC+CPC Available in IPC and CPC
A23B 2/60 by treatment with electric currents without heating effect since 2025 +1 CPC IPC+CPC Available in IPC and CPC
A23B 2/70 by treatment with chemicals since 2025 IPC+CPC Available in IPC and CPC
A23B 2/80 Freezing; Subsequent thawing; Cooling since 2025 +2 CPC IPC+CPC Available in IPC and CPC
A23B 2/90 by drying or kilning; Subsequent reconstitution since 2025 +1 CPC IPC+CPC Available in IPC and CPC

Class A23,2013–2023, worldwide · Source: EPO PATSTAT

Class A23,2013–2023, worldwide · Source: EPO PATSTAT