Stationary retorts

Filing statistics

CPC C10B 1/02 belongs to the parent subclass C10B, which recorded 22,990 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,658 in 2013 to 2,271 in 2023 (+37%), peaking at 2,590 applications in 2020. 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