IPC Subgroup
C11B 3/12 by distillation
Introduced: September 1968
Last revised: January 2006
Full Title
Refining fats or fatty oils > by distillation
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- Subclass:
- PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
Filing statistics
IPC C11B 3/12 belongs to the parent subclass C11B, which recorded 50,808 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,107 in 2013 to 4,892 in 2023 (+57%), peaking at 6,188 applications in 2020. The most active applicants in class C11 are P&G (PROCTER & GAMBLE COMPANY) (5,930 applications), HENKEL (3,288 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (2,162 applications).
Source: EPO PATSTAT, worldwide filings
1 direct subcode
Child Classifications
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- C11B 3/14 with the use of indifferent gases or vapours, e.g. steam
Top Applicants
Top 10 applicants by patent filingsfor class C11, 2013–2023, worldwide · Source: EPO PATSTAT
- P&G (PROCTER & GAMBLE COMPANY) US 5,930
- HENKEL DE 3,288
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,162
- ECOLAB US 1,454
- UNILEVER NL 1,430
- NOVOZYMES DK 1,366
- UNILEVER IP HOLDINGS NL 1,227
- CONOPCO, INC., D/B/A UNILEVER US 1,022
- KAO CORPORATION 947
- KAO CORPORATION JP 853