Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal

Filing statistics

CPC C10N 2080/00 belongs to the parent subclass C10N, which recorded 33,955 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,628 in 2013 to 2,247 in 2023 (-14%), peaking at 4,784 applications in 2016. The most active applicants in class C10 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (5,831 applications), SAUDI ARABIAN OIL COMPANY (2,918 applications) and IFPEN (IFP ENERGIES NOUVELLES) (2,305 applications).

Source: EPO PATSTAT, worldwide filings