DIFF Subgroup
A23L 5/40 Colouring or decolouring of foods
Introduced: January 2016
Full Title
Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor > Colouring or decolouring of foods
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2016.
Child Classifications
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- A23L 5/41 Retaining or modifying natural colour by use of additives, e.g. optical brighteners (A23L5/42 takes precedence) since 2016 IPC+CPC Available in IPC and CPC
- A23L 5/42 Addition of dyes or pigments, e.g. in combination with optical brighteners since 2016 IPC+CPC Available in IPC and CPC
- A23L 5/49 Removing colour by chemical reaction, e.g. bleaching since 2016 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