NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE

Description

C09F covers natural resins extracted from plants and trees, along with products derived from or used with oils for coating and finishing applications. This includes French polish (shellac-based finishes), drying oils (such as linseed or tung oil) that cure through oxidation, siccatives or drying agents that accelerate oil polymerization, and turpentine as a solvent and distillate product. The classification encompasses both the raw materials themselves and their preparation or treatment for use in paints, varnishes, and protective coatings, excluding synthetic resins and adhesives which are covered separately within C09.

Filing statistics

CPC subclass C09F recorded 1,417 patent applications worldwide between 2013 and 2023. Annual filings declined from 97 in 2013 to 71 in 2023 (-27%), peaking at 364 applications in 2016. The most active applicants in class C09 are LG CHEM (7,954 applications), HALLIBURTON ENERGY SERVICES GROUP (6,584 applications) and NITTO DENKO CORPORATION (6,500 applications).

Source: EPO PATSTAT, worldwide filings