MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS (organic fertilisers containing added bacterial cultures, mycelia, or the like C05F11/08; organic fertilisers containing plant vitamins or hormones C05F11/10); FERTILISERS CHARACTERISED BY THEIR FORM

Description

C05G covers fertilizer compositions that combine multiple fertilizer types classified under different C05 subclasses, as well as fertilizer formulations with non-nutritive additives such as binders, anti-caking agents, colorants, or soil conditioners. This subclass also encompasses fertilizers defined primarily by their physical form (granules, pellets, coated products, suspensions, gels) rather than their chemical composition alone. The classification captures complex, multi-component fertilizer products that do not fit neatly into single-fertilizer-type categories defined by other C05 subclasses.

Filing statistics

CPC subclass C05G recorded 61,943 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,313 in 2013 to 3,378 in 2023 (+157%), peaking at 12,008 applications in 2017. The most active applicants in class C05 are CHINESE ACADEMY OF SCIENCES (654 applications), BASF (BADISCHE ANILIN & SODA FABRIK) (452 applications) and YARA INTERNATIONAL (434 applications).

Source: EPO PATSTAT, worldwide filings