DIFF Subgroup
A23B 2/704 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
Introduced: January 2025
Full Title
Preservation of foods or foodstuffs, in general > by treatment with chemicals > in the form of gases, e.g. fumigation; Compositions or apparatus therefor
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2025.
Child Classifications
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- A23B 2/708 in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O since 2025 IPC+CPC Available in IPC and CPC
- A23B 2/721 in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O since 2025 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class A23,2013–2023, worldwide · Source: EPO PATSTAT
- KVASENKOV OLEG IVANOVICH RU 6,158
- NESTLE CH 4,562
- NESTEC CH 3,354
- JIANGNAN UNIVERSITY 2,699
- DSM IP ASSETS (DUTCH STATE MINES IP ASSETS) NL 2,320
- SUNTORY HOLDINGS JP 1,926
- CHINESE ACADEMY OF SCIENCES 1,804
- CJ CHEILJEDANG CORPORATION KR 1,653
- CARGILL US 1,588
- REPUBLIC OF KOREA (RURAL DEVELOPMENT ADMINISTRATION) KR 1,314
Top Applicants (CPC)
Class A23,2013–2023, worldwide · Source: EPO PATSTAT
- NESTLE CH 5,075
- NESTEC CH 3,916
- DSM IP ASSETS (DUTCH STATE MINES IP ASSETS) NL 2,558
- JIANGNAN UNIVERSITY 2,196
- SUNTORY HOLDINGS JP 2,133
- CJ CHEILJEDANG CORPORATION KR 1,842
- CARGILL US 1,708
- REPUBLIC OF KOREA (RURAL DEVELOPMENT ADMINISTRATION) KR 1,341
- CHINESE ACADEMY OF SCIENCES 1,279
- MARS US 1,161